CN211863987U - Industrial pure water preparation system with filtering and purifying functions - Google Patents

Abstract

The utility model discloses a filtering and purifying industrial pure water preparation system, which comprises a tank body, a water distribution device arranged in the tank body in sequence from top to bottom, a filter layer, a bottom filter plate and a water collecting pipe, an overflow and outflow pipeline connected to the water outlet end of the water collection pipe; the overflow outflow water pipeline comprises a first pipe section communicated with the water outlet end of the water collection pipe, a vertical rising pipe section in communication with the end of the first pipe section, and a first pipe section in communication with the outlet end of the water collection pipe The end of the rising pipe section is connected with a V-shaped sand settling tube section, an S-shaped climbing tube section communicated with the sand settling tube section, and a second tube section communicated with the S-shaped climbing tube section; the utility model is mainly used for industrial pure water Preliminary filtration of water in the preparation process can effectively remove most of the impurities in the water. The raw water enters the filter layer through the water distribution device for filtration, and is then collected by the water collection pipe, and then discharged through the overflow water pipeline to achieve preliminary filtration and then enter the bottom. A work segment.

Description

A filtration and purification industrial pure water preparation system

technical field

The utility model relates to the field of pure water preparation, in particular to a filtration and purification industrial pure water preparation system.

Background technique

With the advancement of science and technology, the demand for industrial pure water is also increasing. Generally, industrial pure water adopts the following steps: raw water passes through quartz sand filter, activated carbon filter, precision filter, reverse osmosis device, The sterilization device, etc. are processed in sequence to obtain pure water with the required quality. Among them, the quartz sand filter is used for preliminary filtration of raw water, which can effectively intercept and remove suspended solids, organic matter, colloidal particles, microorganisms, chlorine, smell and some heavy metal ions in the water. The quality of the treatment effect of the quartz sand filter has a great influence on the subsequent operations.

Quartz sand filter uses quartz sand with a certain thickness and particle size as the filter medium. A part of the fine-grained quartz sand produced by the scouring action will inevitably enter the filtered water through the bottom of the filter layer with the water flow. If it is not treated, it will enter the next stage of operation. After the accumulation is large, it will have a greater negative impact on subsequent operations and equipment, such as clogging of activated carbon filters that may be used in subsequent operation sections, clogging or damage to precision filters and reverse osmosis devices, and damage to pump equipment. cause additional wear, etc. Therefore, preventing or minimizing the quartz sand entering the filtered water plays an important role in the entire pure water preparation system. Patent 201810607590.2 discloses a quartz sand filter for water treatment, which drains water through an overflow pipe, and uses the sedimentation effect of the overflow pipe to reduce the amount of quartz sand entering the filtered water. However, it still has defects. It only uses the gravity settlement of the vertical pipe section of the overflow pipe to prevent the quartz sand from being discharged into the next operation with the water flow, and the effect is not significant. Under the action of water flow, it can cross the top of the vertical pipe section of the overflow pipe to enter the next operation; or the finer-grained quartz sand will also cross the top of the vertical pipe section of the overflow pipe and enter the next operation under the action of a small water flow. Operation. If you want to provide the effect of quartz sand settlement, you can only increase the height of the vertical pipe section of the overflow pipe, but it is obviously not suitable or displayed if it is too high. Therefore, its effect of blocking quartz sand from entering the next operation needs to be strengthened.

On the other hand, after the quartz sand filter is used for a period of time, a large amount of impurities will accumulate in the quartz sand in the filter, which needs to be flushed or replaced regularly. The existing quartz sand filter is usually filled in the tank as a whole, and all the quartz sand is flushed from the bottom during cleaning, and all the quartz sand is also replaced when replacing. However, since the water flows down sequentially from the upper layer, the amount of impurities accumulated in the quartz sand of the upper layer is the largest, and the required flushing and replacement cycle should be the shortest. Due to the overall cleaning and replacement, the lower layer of quartz sand has not been fully utilized or is replaced as a whole when it does not need to be replaced, resulting in waste; the same is true during cleaning, either it is a waste of labor to rinse the lower layer that does not need to be rinsed temporarily, or it is The rinsing cycle of the upper layer is too long, resulting in a decrease in its filtration efficiency.

Therefore, a more reliable solution is now required to solve the above problems.

Utility model content

The technical problem to be solved by the present invention is to provide a filtration and purification industrial pure water preparation system aiming at the deficiencies in the above-mentioned prior art.

In order to solve the above-mentioned technical problems, the technical scheme adopted by the present utility model is: an industrial pure water preparation system for filtration and purification, comprising a tank body, a water distribution device arranged in the tank body from top to bottom, a filter layer, and a bottom layer. a filter plate, a water collection pipe, and an overflow water pipeline connected with the water outlet end of the water collection pipe;

The overflow water pipeline comprises a first pipe section communicated with the outlet end of the water collection pipe, a vertical riser section communicated with the end of the first pipe section, and a V-shaped sinker communicated with the end of the riser section. a sand pipe section, an S-type climbing pipe section communicating with the sand settling pipe section, and a second pipe section communicating with the S-type climbing pipe section;

The first pipe section is arranged obliquely, the first end connected with the water collecting pipe is lower than the second end connected with the vertical rising pipe section, and the bottom of the first end of the first pipe section is provided with a first row sand mouth;

The V-shaped first top end of the sand settling tube section is communicated with the end of the vertical rising tube section through the arc tube section, and the V-shaped second top end of the sand settling tube section is connected to the bottom of the S-shaped climbing tube section. The ends are connected; the V-shaped bottom end of the sand settling pipe section is provided with a second sand discharge port.

Preferably, the inner wall of the arc-shaped pipe section is provided with a first arc-shaped sand blocking sheet.

Preferably, the S-shaped climbing pipe section is arranged obliquely, and a plurality of second arc-shaped sand blocking sheets are arranged at intervals on the inner wall of the S-shaped climbing pipe section.

Preferably, the second arc-shaped sand blocking sheet is inclined downward, that is, its upper end is connected to the inner wall of the S-shaped climbing pipe section, and its lower end is far away from the inner wall of the S-shaped climbing pipe section.

Preferably, a protection filter plate connected to the inner wall of the tank is provided below the water distribution device, and the filter layer further includes quartz sand filled between the protection filter plate and the bottom filter plate, so A plurality of arc-shaped support filter plates connected with the inner wall of the tank are arranged at intervals between the protection filter plate and the bottom filter plate;

The arc-shaped support filter plate includes a first arc-shaped support filter plate, a second arc-shaped support filter plate, and a third arc-shaped support filter plate, which are sequentially inclined from top to bottom. The inclination direction is opposite.

Preferably, the diameters of the filter holes opened on the first arc-shaped support filter plate, the second arc-shaped support filter plate, and the third arc-shaped support filter plate are sequentially reduced, and three of the arc-shaped support filter plates Both ends of the tank are fixedly connected to the inner wall of the tank;

The quartz sand between the protection filter plate and the first arc-shaped support filter plate forms the first filter layer, and the quartz sand between the first arc-shaped support filter plate and the second arc-shaped support filter plate forms the second filter layer layer, the quartz sand between the second arc-shaped support filter plate and the third arc-shaped support filter plate forms the third filter layer, and the quartz sand in the first filter layer, the second filter layer and the third filter layer The particle size decreases sequentially.

Preferably, the top of the first arc-shaped supporting filter plate is provided with a first flushing water pipe, the top of the second arc-shaped supporting filter plate is provided with a second flushing water pipe, and the third arc-shaped supporting filter plate is provided with a second flushing water pipe. The top is provided with a third flushing water pipe;

The top end of the first filter layer is provided with a first sand feeding pipe, and the bottom end of the first filter layer is provided with a first sand discharge pipe;

The top end of the second filter layer is provided with a second sand feeding pipe, and the bottom end of the second filter layer is provided with a second sand discharge pipe;

The top end of the third filter layer is provided with a third sand feeding pipe, and the bottom end of the third filter layer is provided with a third sand discharge pipe.

Preferably, a water collection cavity is provided below the third arc-shaped support filter plate, and the water collection pipe is arranged in the water collection cavity;

The water collecting pipe includes a number of annular pipes with diameters increasing in turn from the inside to the outside, a plurality of arc-shaped connecting pipes connected between two adjacent annular pipes, and the bottom of the annular pipe with the innermost ring. a connected main water outlet pipe, the main water outlet pipe is communicated with the first pipe section of the overflow water pipe;

Several water collecting holes are opened on the outer walls of the annular pipe and the arc-shaped connecting pipe.

Preferably, the water collecting hole is a conical hole whose diameter gradually decreases inward from the outer wall.

Preferably, the water distribution device includes a conical box body section and a disc box body section connected below the conical box body section, and a plurality of water distribution holes are opened on the bottom surface of the disc box body section.

Preferably,

The beneficial effects of the utility model are as follows: the industrial pure water preparation system for filtering and purification of the present utility model is mainly used for preliminary filtration of water in the industrial pure water preparation process, which can effectively remove most of the impurities in the water, and the raw water passes through the water distribution device. Enter the filter layer for filtration, and then be collected by the water collection pipe, and then discharged through the overflow water pipeline to achieve preliminary filtration and enter the next operation section;

The utility model can block the fine-grained quartz sand once through the arrangement of the overflow water pipeline, the first pipe section and the first arc-shaped sand blocking sheet, and the V-shaped structural sand settling pipe section can prevent the fine-grained quartz sand from flowing with the water. The movement is blocked again, and the fine-grained quartz sand can be blocked three times by the S-shaped climbing pipe section and the second arc-shaped sand blocking sheet, which can greatly reduce the fine-grained quartz sand leaking from the filter layer and enter the next process with the drainage. The amount of the segment, thereby significantly reducing the negative impact of the leaked fine-grained quartz sand on subsequent operations;

Through the arc structure design of the first filter layer, the second filter layer and the third filter layer, and the arrangement of several flushing water pipes, sand discharge pipes, and sand feeding pipes, the utility model can facilitate the separate flushing or Replacing it can not only maintain its filtering effect, but also reduce unnecessary workload.

Description of drawings

Fig. 1 is the structural representation of the industrial pure water preparation system of the filtration and purification of the utility model;

Fig. 2 is the structural representation of the overflow water pipeline in the embodiment 1 of the present utility model;

3 is a schematic structural diagram of the sand settling pipe section and the S-type climbing pipe section in Example 1 of the present utility model;

4 is a schematic structural diagram of a water collecting pipe in Embodiment 3 of the present utility model;

5 is a schematic structural diagram of a water collecting hole in Embodiment 3 of the present utility model;

6 is a schematic structural diagram of the water distribution device in Embodiment 4 of the present invention.

Description of reference numbers:

1—Tank body; 10—First flushing water pipe; 11—Second flushing water pipe; 12—Third flushing water pipe; 13—First sand feeding pipe; 14—First sand discharging pipe; 15—Second sand feeding pipe; 16—the second sand discharge pipe; 17—the third sand inlet pipe; 18—the third sand discharge pipe; 19—the solenoid valve;

2—water distribution device; 20—conical box body segment; 21—disc box body segment;

3—Protection filter plate;

4—filter layer; 40—first arc support filter plate; 41—second arc support filter plate; 42—third arc support filter plate; 43—first filter layer; 44—second filter layer; 45 - the third filter layer; 46 - water collection chamber;

5—the bottom filter plate;

6—water collecting pipe; 60—ring-shaped pipe; 61—arc connecting pipe; 62—general outlet pipe; 63—water collecting hole;

7—overflow water pipeline; 70—first pipe section; 71—vertical riser pipe section; 72—sand settling pipe section; 73—S-type climbing pipe section; 74—second pipe section; 75—first sand discharge port; 76—first The second row of sand openings; 77—arc-shaped pipe section; 78—the first arc-shaped sand-blocking sheet; 79-the second arc-shaped sand-blocking sheet;

8—raw material water pipe; 80—water pump;

9—Drain pipe.

Detailed ways

The present utility model will be further described in detail below with reference to the embodiments, so that those skilled in the art can implement it with reference to the description.

It should be understood that terms such as "having", "comprising" and "including" as used herein do not exclude the presence or addition of one or more other elements or combinations thereof.

As shown in FIG. 1 , a filtration and purification industrial pure water preparation system in this embodiment includes a tank body 1, a water distribution device 2 arranged in the tank body 1 from top to bottom, a filter layer 4, and a bottom filter plate 5 and the water collection pipe 6, and the overflow water pipeline 7 connected with the water outlet end of the water collection pipe 6.

The quartz sand filter of the utility model is mainly used for preliminary filtration of water in the industrial pure water preparation process, so as to remove most of the impurities in the water. The water distribution device 2 is communicated with the external raw material water through the raw material water pipe 8. The raw material water pipe 8 is provided with a water pump 80. The raw material water enters the filter layer 4 through the water distribution device 2 for filtration, and is then collected by the water collection pipe 6, and then flows out of the water pipe through the overflow. Road 7 is discharged, and after preliminary filtration is achieved, it enters the next operation section. More specific embodiments are provided below to further illustrate the present invention.

Example 1

2-3, on the basis of the above, preferably, the overflow water pipeline 7 includes a first pipe section 70 communicating with the outlet end of the water collecting pipe 6, a vertical rising pipe section 71 communicating with the end of the first pipe section 70, and a rising pipe section 71. A V-shaped sand settling tube section 72 communicated with the end of the tube section, an S-shaped climbing tube section 73 communicated with the sand settling tube section 72, and a second tube section 74 communicated with the S-shaped climbing tube section 73;

The first pipe section 70 is arranged obliquely, the first end connected with the water collecting pipe 6 is lower than the second end connected with the vertical rising pipe section 71, and a first sand discharge port 75 is provided at the bottom of the first end of the first pipe section 70;

The V-shaped first top of the sand settling pipe section 72 is communicated with the end of the vertical rising pipe section 71 through the arc tube section 77, and the V-shaped second top of the sand settling tube section 72 is communicated with the bottom end of the S-shaped climbing pipe section 73; The V-shaped bottom end of the sand settling pipe section 72 is provided with a second sand discharge port 76 .

Further, the inner wall of the arc-shaped pipe section 77 is provided with a first arc-shaped sand blocking sheet 78 . More preferably, the bottom end of the first arc-shaped sand blocking sheet 78 is located on the side of the connection between the arc-shaped pipe section 77 and the vertical rising pipe section 71, which is close to the vertical rising pipe section 71, that is, it is located in the vertical rising pipe section 71 in FIG. 3 . Right side of left inner wall. When fine-grained sand rises to the arc-shaped pipe section 77 with the water flow, part of the fine-grained sand is blocked by the first arc-shaped sand blocking sheet 78 and can then fall into the vertical rising pipe section 71 .

Further, the S-shaped climbing pipe section 73 is arranged obliquely, and a plurality of second arc-shaped sand blocking sheets 79 are provided at intervals on the inner wall of the S-shaped climbing pipe section 73 .

Further, the second arc-shaped sand blocking sheet 79 is inclined downward, that is, its upper end is connected to the inner wall of the S-shaped climbing pipe section 73 , and its lower end is far away from the inner wall of the S-shaped climbing pipe section 73 .

More preferably, both the first arc-shaped sand blocking sheet 78 and the second arc-shaped sand blocking sheet 79 are provided with micropores, and the size of the micropores is at least smaller than the filter hole size of the bottom filter plate 5 . By arranging micropores, its blocking effect on water flow can be reduced, and at the same time, the blocking of fine-grained (or fine-grained) quartz sand can be ensured.

In this embodiment, the overflow and outflow pipelines 7 include two sets of symmetrically arranged sets. The water inlet ends of the first pipe sections 70 of the two sets of overflow outflow pipelines 7 are both connected to the water outlet ends of the water collection pipes 6 , and the two sets of overflow outflow pipelines 7 The water outlet ends of each are connected to the drain pipe 9.

Among them, under the long-term scouring action of water, the original fine-grained (or fine-grained) quartz sand in the filter layer 4 or the fine-grained quartz sand (the particle size is smaller than the filter holes on the bottom filter plate 5) produced by the scouring action A part of the size) will inevitably pass through the bottom filter plate 5 and enter the water collection pipe 6 with the water flow. If it is not treated, it will enter the next stage of operation. If the amount is large, it will have a greater negative impact on subsequent operations and equipment, such as blockage of the activated carbon filter that may be used in the subsequent operation section, blockage or damage to the precision filter and reverse osmosis device, and damage to pump equipment. Additional wear etc. In the utility model, the water treated by the filter layer 4 is discharged through the overflow water pipeline 7, which can greatly reduce the amount of fine-grained quartz sand leaked from the filter layer 4 into the next process section along with the drainage, thereby significantly reducing leakage The negative impact of fine-grained quartz sand on subsequent operations.

Specifically, the water filtered by the filter layer 4 and some fine-grained (or fine-grained) quartz sand mixed therein are discharged from the water collecting pipe 6 into the first pipe section 70 of the overflow water pipeline 7, where the fine-grained quartz sand moves with the water flow , mainly to analyze the movement of fine-grained quartz sand. The first pipe section 70 is inclined upward with the direction of the water flow, which hinders the movement of the fine-grained quartz sand to a certain extent. When the fine-grained quartz sand moves upward through the vertically ascending pipe section 71, part of the fine-grained quartz sand will fall to the ground due to gravity. In the first pipe section 70, another part of the fine-grained quartz sand will collide with the first arc-shaped sand blocking sheet 78 and be blocked from falling, and the fine-grained quartz sand falling to the first pipe section 70 will slide to the first sand discharge port in the inclined direction. 75 gatherings;

The fine-grained quartz sand that has crossed the arc-shaped pipe section 77 will be deposited in a large amount at the second sand discharge port 76 at the bottom of the V-shaped in the sand-precipitating pipe section 72 due to its V-shaped structure. The quartz sand is blocked again with the movement of the water flow;

The fine-grained quartz sand that has passed the sand settling pipe section 72 passes through the S-shaped climbing pipe section 73 in an S-shape in an inclined upward direction. Due to the design of the S-shaped structure, the water flow speed is slowed down, and the rising power of the fine-grained quartz sand is greatly reduced, and a large amount of fine-grained quartz sand will flow smoothly. The climbing pipe section falls in the opposite direction and slides into the second sand discharge port 76 to collect; in addition, the second arc-shaped sand blocking sheet 79 in the S-shaped climbing pipe section 73 blocks the rising fine-grained quartz sand again, so that the fine-grained quartz sand is blocked again. It is basically impossible to cross the S-shaped climbing pipe section 73 to reach the second pipe section 74 , and the fine-grained quartz sand blocked by the second arc-shaped sand blocking sheet 79 will also slide down to the second sand discharge port 76 to collect. After a period of use, when the equipment is shut down, the valves at the first sand discharge port 75 and the second sand discharge port 76 are opened to discharge the aggregated fine-grained quartz sand. Therefore, the amount of fine-grained (or fine-grained) quartz sand entering the next operation section can be greatly reduced by the sand blocking effect of the overflow water pipeline 7 .

Example 2

1, further preferred on the basis of Embodiment 1, wherein, a protection filter plate 3 connected with the inner wall of the tank body 1 is provided below the water distribution device 2, and the filter layer 4 also includes filling in the protection filter plate 3 and the protection filter plate 3. The quartz sand between the bottom filter plates 5, the protection filter plate 3 and the bottom filter plate 5 are provided with several arc-shaped support filter plates connected with the inner wall of the tank body 1 at intervals; the arc-shaped support filter plates include sequentially from top to bottom. The first arc-shaped support filter plate 40 , the second arc-shaped support filter plate 41 and the third arc-shaped support filter plate 42 are arranged obliquely, and the inclination directions of the adjacent two arc-shaped support filter plates are opposite. Among them, the protection filter plate 3 is provided with filter holes, and the protection filter plate 3 can reduce the scouring of the surface of the filter layer 4 by the raw material water and prevent the formation of pits on the surface of the filter layer 4 . As shown in FIG. 1 , the first arc-shaped supporting filter plate 40 and the third arc-shaped supporting filter plate 42 are inclined downward to the right, and the second arc-shaped supporting filter plate 41 is inclined downward to the left. Under the condition that the overall volume of the filter layer 4 is not reduced, the three layers of filter layers 4 whose bottoms are all inclined arcs are formed.

Wherein, the diameters of the filter holes opened on the first arc-shaped support filter plate 40, the second arc-shaped support filter plate 41, and the third arc-shaped support filter plate 42 are successively reduced, and the two ends of the three arc-shaped support filter plates are Both are fixedly connected with the inner wall of the tank; the quartz sand between the protection filter plate 3 and the first arc-shaped support filter plate 40 forms the first filter layer 43, the first arc-shaped support filter plate 40 and the second arc-shaped support filter plate 40 The quartz sand between 41 forms the second filter layer 444, the quartz sand between the second arc-shaped support filter plate 41 and the third arc-shaped support filter plate 42 forms the third filter layer 45, the first filter layer 43, the third filter layer 45 The particle size of the quartz sand in the second filter layer 444 and the third filter layer 45 decreases sequentially.

Three arc-shaped support filter plates are used to form three filter layers 4 with an arc-shaped bottom surface to filter water. Due to the turbulent guiding effect of the arc-shaped support filter plates, the water will have a tendency to flow down along the arc shape, which can increase the amount of water. The residence time in the filter layer 4 enhances the contact effect between the water and the filter medium, thereby improving the filter effect. The pore size of the upper and lower filter layers 4 is reduced in turn to form gradient filtration, which can improve filtration efficiency and filtration effect. Supported by three arc-shaped support filter plates, the phenomenon of mutual penetration of the media in each filter layer 4 can be prevented, so that three relatively independent and stable filter layers 4 can be formed in the first filter section.

Further, the top of the first arc-shaped support filter plate 40 is provided with a first flushing water pipe 10 , the top of the second arc-shaped support filter plate 41 is provided with a second flushing water pipe 11 , and the top of the third arc-shaped support filter plate 42 is provided with There is a third flushing water pipe 12; the top of the first filter layer 43 is provided with a first sand inlet pipe 13, the bottom end of the first filter layer 43 is provided with a first sand discharge pipe 14; the top of the second filter layer 444 is provided with a first sand discharge pipe 14; The second sand inlet pipe 15, the second sand discharge pipe 16 is arranged at the bottom end of the second filter layer 444; the third sand inlet pipe 17 is arranged at the top end of the third filter layer 45, and the bottom end of the third filter layer 4 is arranged There is a third row of sand pipes 18 . In this embodiment, the first flushing water pipe 10 , the second flushing water pipe 11 , and the third flushing water pipe 12 are all provided with solenoid valves 19 , which are all connected to the water pump 80 . The upper page of the water inlet pipe of the water distribution device 2 is provided with a solenoid valve 19 .

Further, the first sand discharge pipe 14, the second sand discharge pipe 16, and the third sand discharge pipe 18 are all provided with a filter screen and a valve, the filter screen is arranged on the inner side, and the valve is arranged on the outer side. When only sewage needs to be discharged, the filter screen is not removed until the valve is opened; and when the quartz sand needs to be discharged, the valve needs to be opened and the filter screen needs to be removed.

After the quartz sand filter layer 4 is used for a long time, a large amount of impurities will accumulate inside, which will greatly reduce its filtering efficiency and effect, and it needs to be washed or replaced. The above-mentioned structural design of the present invention can facilitate flushing and replacement. Specifically, the operation steps are as follows: for example, since the first filter layer 43 is in the uppermost layer, the accumulated impurities are generally the most. The water pump 80 introduces high-pressure purified water or raw water (the raw water can be used for cleaning) from the first flushing water pipe 10 to flush the quartz sand in the first filter layer 43 from the side, and opens the valve on the first sand discharge pipe 14 , sewage and impurities are discharged from the valve, and the filter screen can block the discharge of quartz sand; when the quartz sand in the first filter layer 43 needs to be cleaned or replaced more thoroughly, open the valve on the first sand discharge pipe 14, And remove the filter screen, under the impact of water pressure, the quartz sand in the first filter layer 43 is discharged from the first sand discharge pipe 14, so as to facilitate thorough cleaning or direct replacement outside the tank 1. The new quartz sand is replenished into the first filter layer 43 through the first sand feeding pipe 13 . It should be understood that the size of the quartz sand is not too large, and the first filter can be filtered through the reasonable design of the diameter of the sand inlet pipe and the sand discharge pipe, the impact of the water pressure and the inclined design of the bottom of the first filter layer 43. The quartz sand in layer 43 was discharged smoothly. The cleaning and replacement of the second filter layer 444 and the third filter layer 45 are the same as the above steps. Since the three spaced relatively independent filter layers 4 formed by the three arc-shaped support filter plates, the three filter layers 4 can be cleaned and replaced individually. For example, there are relatively few impurities in the third filter 45 layer 4 at the bottom, and the cleaning and replacement cycle can be longer. By reasonably cleaning and replacing each layer independently, it can maintain its filtering effect and reduce unnecessary workload.

It can be understood that, in order to improve the efficiency and effect of flushing and replacing quartz sand, multiple flushing water pipes, sand feeding pipes and sand discharging pipes can be provided.

Example 3

Referring to FIGS. 2 and 4-5 , further preferred on the basis of Embodiment 2, wherein a water collection cavity 46 is provided below the third arc-shaped support filter plate 42 , and the water collection pipe 6 is arranged in the water collection cavity 46 in a tiled manner. The water collecting pipe 6 includes a number of annular pipes 60 whose diameters increase in turn from inside to outside, a number of arc-shaped connecting pipes 61 connected between two adjacent annular pipes 60, and an annular pipe 60 with the innermost ring. The total water outlet pipe 62 communicated with the bottom of the main water outlet pipe 62 is communicated with the first pipe section 70 of the overflow water pipe 7; The water passing through the filter layer 4 flows into the water collecting chamber 46 , and is then collected by the water collecting pipe 6 to the overflow water pipeline 7 .

2 and 4, the water in the water collecting chamber 46 enters the annular pipe 60 and the arc-shaped connecting pipe 61 through the collecting hole 63, and the water in the outer annular pipe 60 flows to the innermost ring through the arc-shaped connecting pipe 61 in turn. The annular pipe 60 then flows into the first pipe section 70 of the overflow water pipe 7 from the general water outlet pipe 62 at the bottom. The arrangement of the annular pipe 60 can increase the number of water collecting holes 63 on it, and the arc-shaped connecting pipe 61 can increase the length of the pipeline and increase the number of water collecting holes 63 on it, thereby increasing its water collection capacity and improving the water collection capacity. efficiency.

Further, the water collecting hole 63 is a conical hole, the diameter of which gradually decreases from the outer wall inward. That is, water enters from the large hole section of the water collecting hole 63 and flows out from the small hole section, which can increase the flow rate of the outflow, which is beneficial to improve the water collection efficiency.

Example 4

6, further preferred on the basis of embodiment 1 or 2 or 3, wherein, the water distribution device 2 comprises a conical box body segment 20 and a disc box body segment 21 connected below the conical box body segment 20, The bottom surface of the disc box body section 21 is provided with a number of water distribution holes. After passing through the conical box body section 20 and the disc box body section 21 in turn, the raw water flows out into the filter layer 4 evenly through the water distribution holes. Filter layer 4 performs filtration.

Although the embodiments of the present invention have been disclosed as above, they are not limited to the applications listed in the description and the embodiments, and can be applied to various fields suitable for the present invention. For those skilled in the art, Additional modifications may readily be implemented, therefore, the invention is not limited to the specific details without departing from the general concept defined by the claims and the scope of equivalents.

Claims (10)

1. an industrial pure water preparation system of filtration and purification, is characterized in that, comprises tank body, the water distribution device, filter layer, bottom filter plate and water collecting pipe that are arranged in the tank body sequentially from top to bottom, and The overflow water pipeline connected to the water outlet end of the water collection pipe; The overflow water pipeline comprises a first pipe section communicated with the outlet end of the water collection pipe, a vertical riser section communicated with the end of the first pipe section, and a V-shaped sinker communicated with the end of the riser section. a sand pipe section, an S-type climbing pipe section communicating with the sand settling pipe section, and a second pipe section communicating with the S-type climbing pipe section; The first pipe section is arranged obliquely, the first end connected with the water collecting pipe is lower than the second end connected with the vertical rising pipe section, and the bottom of the first end of the first pipe section is provided with a first row sand mouth; The V-shaped first top end of the sand settling tube section is communicated with the end of the vertical rising tube section through the arc tube section, and the V-shaped second top end of the sand settling tube section is connected to the bottom of the S-shaped climbing tube section. The ends are connected; the V-shaped bottom end of the sand settling pipe section is provided with a second sand discharge port. 2 . The industrial pure water preparation system for filtration and purification according to claim 1 , wherein the inner wall of the arc-shaped pipe section is provided with a first arc-shaped sand blocking sheet. 3 . 3. The industrial pure water preparation system for filtering and purifying according to claim 1, wherein the S-shaped climbing pipe section is inclined and arranged, and the inner wall of the S-shaped climbing pipe section is provided with several second arc-shaped sand blocks at intervals piece. 4. The industrial pure water preparation system for filtration and purification according to claim 3, characterized in that, the second arc-shaped sand-blocking sheet is inclined downward, that is, the upper end thereof is connected to the inner wall of the S-shaped climbing pipe section, Its lower end is far away from the inner wall of the S-shaped climbing pipe section. 5 . The industrial pure water preparation system for filtration and purification according to claim 1 , wherein a protection filter plate connected to the inner wall of the tank is provided below the water distribution device, and the filter layer further comprises: 6 . Quartz sand filled between the protection filter plate and the bottom filter plate, a plurality of arc-shaped support filter plates connected with the inner wall of the tank are arranged at intervals between the protection filter plate and the bottom filter plate; The arc-shaped support filter plate includes a first arc-shaped support filter plate, a second arc-shaped support filter plate, and a third arc-shaped support filter plate, which are sequentially inclined from top to bottom. The inclination direction is opposite. 6. The industrial pure water preparation system for filtering and purifying according to claim 5, wherein the first arc-shaped support filter plate, the second arc-shaped support filter plate, and the third arc-shaped support filter plate are provided with The diameters of the filter holes are successively reduced, and both ends of the three arc-shaped support filter plates are fixedly connected to the inner wall of the tank body; The quartz sand between the protection filter plate and the first arc-shaped support filter plate forms the first filter layer, and the quartz sand between the first arc-shaped support filter plate and the second arc-shaped support filter plate forms the second filter layer layer, the quartz sand between the second arc-shaped support filter plate and the third arc-shaped support filter plate forms the third filter layer, and the quartz sand in the first filter layer, the second filter layer and the third filter layer The particle size decreases sequentially. 7 . The industrial pure water preparation system for filtration and purification according to claim 6 , wherein the top end of the first arc-shaped support filter plate is provided with a first flushing water pipe, and the second arc-shaped support filter plate has a The top is provided with a second flushing water pipe, and the top of the third arc-shaped supporting filter plate is provided with a third flushing water pipe; The top end of the first filter layer is provided with a first sand feeding pipe, and the bottom end of the first filter layer is provided with a first sand discharge pipe; The top end of the second filter layer is provided with a second sand feeding pipe, and the bottom end of the second filter layer is provided with a second sand discharge pipe; The top end of the third filter layer is provided with a third sand feeding pipe, and the bottom end of the third filter layer is provided with a third sand discharge pipe. 8 . The industrial pure water preparation system for filtration and purification according to claim 7 , wherein a water collecting cavity is provided below the third arc-shaped supporting filter plate, and the water collecting pipe is arranged in a flat manner on the collecting pipe. 9 . in the water chamber; The water collecting pipe includes a plurality of annular pipes with successively increasing diameters that are sleeved from the inside to the outside, a plurality of arc-shaped connecting pipes connected between the two adjacent annular pipes, and the bottom of the annular pipe with the innermost ring. a connected main water outlet pipe, the main water outlet pipe is communicated with the first pipe section of the overflow water pipe; Several water collecting holes are opened on the outer walls of the annular pipe and the arc-shaped connecting pipe. 9 . The industrial pure water preparation system for filtration and purification according to claim 8 , wherein the water collecting hole is a conical hole whose diameter gradually decreases inward from the outer wall. 10 . 10. The industrial pure water preparation system of filtration and purification according to claim 1, wherein the water distribution device comprises a conical box section and a disc box section connected below the conical box section , the bottom surface of the disc box body section is provided with a number of water distribution holes.

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