CN216445173U - Combined multifunctional water treatment system - Google Patents

Abstract

A combined multifunctional water treating system features that the part over the filter material in original filter pool and the part over the superelevation part are used as aerating pool to build up filter pool, which can be used to treat primary and secondary water simultaneously for removing Fe and Mn and reducing the investment in building land and engineering. The filter comprises a plurality of filter groups which are connected in sequence and have the same structure, and is characterized in that a material inlet and a material outlet and a plurality of pipe passing holes are formed in the outer wall of each filter group, a sand discharge groove in the filter group is connected with a backwashing water discharge pipe, the backwashing water discharge pipe penetrates through one pipe passing hole and is connected to the outside of the filter group in an extending manner, a backwashing water discharge valve is arranged on the backwashing water discharge pipe, a high-resistance water distribution main pipe in the filter group is connected with a backwashing water inlet pipe, and the backwashing water inlet pipe penetrates through one pipe passing hole and is connected to the outside of the filter group in an extending manner.

Description

Combined multifunctional water treatment system

Technical Field

The utility model belongs to the technical field of water treatment, and particularly relates to a combined multifunctional water treatment system.

Background

In the system of small and medium-sized water supply plants, if water containing iron and manganese is used as source water, when the two indexes exceed the national standard of the current drinking water in China, the water treatment links of iron removal and manganese removal are required. The water treatment scheme commonly adopted at present is a common rapid filter or siphon filter and the like, and the basic flow is as follows: water source → water guide pipeline → aeration tank → filter tank → clean water tank → water supply two pumps, etc., wherein the filter tank and the aeration tank are the core process equipment, the whole system cost is high, the structure is many, the floor area is large. No matter what kind of treatment process is adopted, the aeration and oxygenation process is needed to oxygenate and remove the odor of the source water, and volatile harmful substances in the source water are released to improve the pH value of the source water. The transmission between the water after aeration in the aeration tank and the filter tank is generally carried out by auxiliary facilities such as pipelines, open channels, valve bodies and the like in the prior art, but the pipelines or the open channels are easily blocked by rust mud separated out from the water after aeration and oxygenation, and influence the transmission of the water.

In addition, when the iron and manganese indexes in the source water are high and reach a certain value, if only one-time filtration treatment is adopted, the water quality of the treated water cannot reach the standard, and secondary filtration water treatment is needed. The common method for secondary water treatment at present is to adopt two sets of existing systems which are basically the same to carry out treatment, firstly carry out primary filtration to remove iron and then carry out secondary filtration to remove manganese according to the oxidation activity characteristics of iron and manganese. However, such a secondary water treatment system requires a large construction area for a water plant to construct a large number of buildings, and the filter tanks and the aeration tanks in the two systems are independent bodies, and cannot be adjusted due to the change of water quality, so that the waste of large treatment capacity is caused, the investment is large, the construction period is long, and the secondary water treatment system is not suitable for the construction and use of medium and small water plants producing ten thousand tons of water per day and less than ten thousand tons of water per day.

Disclosure of Invention

Aiming at the problems, the utility model makes up the defects of the prior art and provides a combined multifunctional water treatment system; the utility model takes the original filter chamber with higher height, the super high part and the part above the filter material in the original filter chamber as the aeration tank to build the filter chamber group in a combined way, and the valve body on the designed process pipeline is adjusted to lead any filter chamber group to be randomly converted into the filter chamber group responsible for the primary water treatment or the filter chamber group responsible for the secondary water treatment according to the requirement, and the primary water treatment and the secondary water treatment can be simultaneously operated, thereby achieving the effects of removing iron and manganese simultaneously and reducing the construction land and the engineering investment.

In order to achieve the purpose, the utility model adopts the following technical scheme.

The utility model provides a combined type multifunctional water treatment system which comprises a plurality of filter groups which are connected in sequence and have the same structure, and is characterized in that a material inlet and outlet and a plurality of filter pipe holes are formed in the outer wall of each filter group, a sand discharge groove in each filter group is connected with a backwashing water discharge pipe, each backwashing water discharge pipe penetrates through one filter pipe hole and is connected to the outside of each filter group in an extending mode, a backwashing water discharge valve is arranged on each backwashing water discharge pipe, a high-resistance water distribution main pipe in each filter group is connected with a backwashing water inlet pipe, each backwashing water inlet pipe penetrates through one filter pipe hole and is connected to the outside of each filter group in an extending mode, a backwashing water inlet valve is arranged on each backwashing water inlet pipe, a primary filtering water outlet pipe, a secondary filtering water outlet pipe and a primary filtering water discharge pipe are further branched from each backwashing water inlet pipe, a primary filtering water outlet valve and a primary filtering water outlet valve are arranged on each primary filtering water outlet pipe and each primary filtering water discharge pipe, A secondary filtering water outlet valve and a primary filtering water drain valve, wherein a spraying aeration tower is further arranged above the filter group, the spraying aeration tower is connected with a filtering water inlet main pipe, the filtering water inlet main pipe extends out of the filter group from one filter pipe hole, the filtering water inlet main pipe is branched into a primary filtering water inlet pipe and a secondary filtering water inlet pipe outside the filter group, the primary filtering water inlet pipe and the secondary filtering water inlet pipe are respectively provided with a primary filtering water inlet valve and a secondary filtering water inlet valve, one filter pipe hole penetrating the bottom of the filter group is also provided with an emptying pipe, the emptying pipe is provided with an emptying valve, the backwashing water discharge pipes of all the filter groups are connected in parallel to a backwashing water discharge main pipe, one end of the backwashing water discharge main pipe is provided with a backwashing water discharge main valve, and the backwashing water inlet pipes of all the filter groups are connected in parallel to the backwashing water inlet main pipe, a backwashing water inlet main valve is arranged at one end of the backwashing water inlet main pipe, a backwashing pump is connected at the other end of the backwashing water inlet main pipe, the primary filtering water outlet pipes of all the filter groups are connected in parallel to a primary filtering water outlet main pipe, a primary filtering water outlet initial main valve is arranged at one end of the primary filtering water outlet main pipe and is connected with a secondary filtering lift pump, a primary filtering water outlet end main valve is arranged at the other end of the primary filtering water outlet main pipe, the secondary filtering water outlet pipes of all the filter groups are connected in parallel to a secondary filtering water outlet main pipe, a secondary filtering water outlet end main valve is arranged at one end of the secondary filtering water outlet main pipe, the primary filtering water outlet pipes of all the filter groups are connected in parallel to a primary filtering water outlet main pipe, a primary water outlet main valve is arranged at one end of the primary filtering water outlet main pipe, and the primary filtering water inlet pipes of all the filter groups are connected in parallel to the primary filtering water inlet main pipe, the one end of the primary filtration water inlet main pipe is provided with a primary filtration water inlet main valve, the terminal of the primary filtration water inlet main pipe and the terminal of the secondary filtration water inlet main pipe are combined into a clear water main pipe, all the filter group is connected with the secondary filtration water inlet pipe in parallel to the secondary filtration water inlet main pipe, one end of the secondary filtration water inlet main pipe is connected with the secondary filtration lift pump, all the filter group is connected with the emptying pipe in parallel to the emptying main pipe.

Further, all the filter groups have the same height and are 4.5m-4.8 m.

Further, every all be provided with single pond flow meter on filtering the inlet manifold, once filter the one end of inlet manifold and be provided with the total flow table.

Furthermore, the tail end of the clean water main pipe is provided with a U-shaped pipeline structure and a siphon breaking pipe is vertically arranged.

Furthermore, one end of the backwashing drainage main pipe, one end of the backwashing water inlet main pipe, one end of the primary water filtration drainage main pipe and one end of the emptying main pipe are all connected to an underground drainage pipe.

Further, one end of the primary filtering water inlet main pipe is connected to source water.

Further, the clean water main pipe is connected to a clean water tank.

The utility model has the beneficial effects.

According to the utility model, a filter pool group is built by additionally arranging 0.3-0.5 m ultrahigh parts on the upper part of the original filter pool according to a normal elevation, the upper part of a filter material in the filter pool group is used as an aeration pool, and the lower part of the filter material is used as a filter pool, namely the filter pool group is built by the way that the original aeration pool and the filter pool are combined up and down. The source water directly falls into the filter tank after aeration, so that the oxygen content of the water entering the filter material of the filter tank is the highest, the effects of removing iron and manganese are facilitated, the original aeration tank and a transmission system from the source water to the filter tank after aeration which are independently arranged are cancelled, the water inlet of the single filter tank group can be metered and adjusted, the single filter tank group can independently operate and independently maintain, the manufacturing cost of equipment is reduced, the operation management is convenient, the operation maintenance cost is reduced, structures are reduced, the investment is reduced, and the building floor area of a water plant is reduced.

In addition, the number and the operation mode of the single tanks of the filter tank group can be designed at will according to needs, and the whole water treatment system can be subjected to different function combinations according to different requirements through the designed process pipelines and the switches of the valves. The filter pool groups can be used as primary filter pools, and any filter pool group can be converted into a secondary filter pool, so that the deep treatment of the high iron and manganese content coexisting source water can be realized, the water filtering function under various conditions can be realized by a smaller floor area, and the filter pool is particularly suitable for the construction and use of medium and small water plants producing ten thousand tons of water per day and less than ten thousand tons of water per day.

Drawings

In order to make the technical problems, technical solutions and advantageous effects solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and the detailed description. It should be understood that the detailed description and specific examples, while indicating the utility model, are intended for purposes of illustration only and are not intended to limit the scope of the utility model.

Fig. 1 is a schematic view of the front vertical surface structure of the present invention.

Fig. 2 is a schematic view of a back elevational structure of the present invention.

FIG. 3 is a schematic side elevational view of a single filter stack of the present invention

The labels in the figure are: 1 is a filter group, 2 is a feed inlet and discharge outlet, 3 is a backwash drain pipe, 4 is a backwash drain valve, 5 is a backwash water inlet pipe, 6 is a backwash water inlet valve, 7 is a primary filtration water outlet pipe, 8 is a secondary filtration water outlet pipe, 9 is a primary filtration water drain pipe, 10 is a primary filtration water outlet valve, 11 is a secondary filtration water outlet valve, 12 is a primary filtration water drain valve, 13 is a spray aeration tower, 14 is a filtration water inlet main pipe, 15 is a primary filtration water inlet pipe, 16 is a secondary filtration water inlet pipe, 17 is a primary filtration water inlet valve, 18 is a secondary filtration water inlet valve, 19 is an emptying pipe, 20 is an emptying valve, 21 is a backwash water outlet main pipe, 22 is a backwash water outlet main valve, 23 is a backwash water inlet main pipe, 24 is a backwash water inlet main valve, 25 is a backwash pump, 26 is a primary filtration water outlet main pipe, 27 is a primary filtration water outlet initial main valve, 28 is a secondary filtration lift pump, 29 is a primary filtration water outlet end main valve, 30 is a secondary filtering water outlet main pipe, 31 is a secondary filtering water outlet end main valve, 32 is a primary filtering water outlet main pipe, 33 is a primary filtering water outlet main valve, 34 is a primary filtering water inlet main pipe, 35 is a primary filtering water inlet main valve, 36 is a clear water main pipe, 37 is a secondary filtering water inlet main pipe, 38 is an emptying main pipe, 39 is a single-tank flowmeter, 40 is a total flowmeter, 41 is a siphon breaking pipe, 42 is an underground water outlet pipe, 43 is source water, 44 is a clear water tank, 45 is a first tank, 46 is a second tank, 47 is a third tank, and 48 is a fourth tank.

Detailed Description

As shown in the attached drawings, the embodiment comprises four filter pool groups 1 which are connected in sequence and have the same structure, namely a first pool 45, a second pool 46, a third pool 47 and a fourth pool 48. The heights of the four filter groups 1 are the same and are all 4.5m-4.8m, if the heights are lower than 4.5m, the heights of the functional parts of the aeration tank are too small, which is not beneficial to water level adjustment; if the height is 4.8m, the height of the whole water treatment building, including the external plants, needs to be built higher, thereby increasing unnecessary investment.

The outer wall of each filter group 1 is provided with a material inlet and outlet 2 and a plurality of filter tube holes, the material inlet and outlet 2 is used for maintenance personnel to replace and add the filter material in the filter group 1, and the filter tube holes are used for passing through pipelines.

The inside sand discharge tank of filter unit 1 is connected with backwash drain pipe 3, and backwash drain pipe 3 passes a filter tube hole and extends to be connected to filter unit 1 outside, is provided with backwash drain valve 4 on backwash drain pipe 3, here, sets up P1 backwash drain valve 4 on pond 45, sets up P2 backwash drain valve 4 on No. two ponds 46, sets up P3 backwash drain valve 4 on No. three ponds 47, sets up P4 backwash drain valve 4 on No. four ponds 48. The backwash drains 3 of all filter groups 1 are connected in parallel to the backwash drain main 21, and one end of the backwash drain main 21 is provided with a P5 backwash drain main valve 22 and extends to be connected to the underground drain 42.

A large-resistance water distribution main pipe inside the filter tank group 1 is connected with a backwashing water inlet pipe 5, the backwashing water inlet pipe 5 penetrates through a pipe hole and extends to be connected to the outside of the filter tank group 1, a backwashing water inlet valve 6 is arranged on the backwashing water inlet pipe 5, an F1 backwashing water inlet valve 6 is arranged on a first tank 45, an F2 backwashing water inlet valve 6 is arranged on a second tank 46, an F3 backwashing water inlet valve 6 is arranged on a third tank 47, and an F4 backwashing water inlet valve 6 is arranged on a fourth tank 48. The backwash water inlet pipes 5 of all the filter groups 1 are connected in parallel to the backwash water inlet main pipe 23, one end of the backwash water inlet main pipe 23 is provided with an F5 backwash water inlet main valve 24 and extends to be connected to the underground drainage pipe 42, the other end of the backwash water inlet main pipe 23 is connected with a backwash pump 25, and the backwash pump 25 is connected with a water pipe from the clean water tank 44.

The backwashing water inlet pipe 5 is further branched into a primary filtering water outlet pipe 7, a secondary filtering water outlet pipe 8 and a primary filtering water outlet pipe 9, the primary filtering water outlet pipe 7, the secondary filtering water outlet pipe 8 and the primary filtering water outlet pipe 9 are respectively provided with a primary filtering water outlet valve 10, a secondary filtering water outlet valve 11 and a primary filtering water outlet valve 12, a first pool 45 is provided with a J11 primary filtering water outlet valve 10, a J21 secondary filtering water outlet valve 11 and a C1 primary filtering water outlet valve 12, a second pool 46 is provided with a J12 primary filtering water outlet valve 10, a J22 secondary filtering water outlet valve 11 and a C2 primary filtering water outlet valve 12, a third pool 47 is provided with a J13 primary filtering water outlet valve 10, a J23 secondary filtering water outlet valve 11 and a C3 primary filtering water outlet valve 12, and a fourth pool 48 is provided with a J14 primary filtering water outlet valve 10, a J24 secondary filtering water outlet valve 11 and a C4 primary filtering water outlet valve 12.

The primary filtered water pipes 7 of the four filter groups 1 are connected in parallel to a primary filtered water main pipe 26, one end of the primary filtered water main pipe 26 is provided with a J16 primary filtered water initial valve 27 and is connected with a secondary filtering lift pump 28, and the other end of the primary filtered water main pipe 26 is provided with a J15 primary filtered water end main valve 29. The secondary filtered water pipes 8 of the four filter groups 1 are connected in parallel to a secondary filtered water main pipe 30, one end of the secondary filtered water main pipe 30 is provided with a J25 secondary filtered water tail end main valve 31, the primary filtered water discharge pipes 9 of the four filter groups 1 are connected in parallel to a primary filtered water discharge main pipe 32, and one end of the primary filtered water discharge main pipe 32 is provided with a C5 primary filtered water discharge main valve 33 and extends to be connected to an underground discharge pipe 42.

The spraying aeration tower 13 is also arranged above the filter group 1, the water to be treated is scattered into the filter group 1 through the spraying aeration tower 13, the aerated water directly falls into the bottom of the filter group 1, the aeration intensity is improved, sufficient oxygenation and odor removal can be carried out, and volatile harmful substances in the water to be treated are released.

The spraying aeration tower 13 is connected with a filtering water inlet main pipe 14, the filtering water inlet main pipe 14 extends out of the filter tank group 1 from one pipe passing hole, each filtering water inlet main pipe 14 is provided with a single tank flow meter 39 for respectively monitoring the water flow of the filtering water inlet main pipe 14 of each filter tank group 1, one end of the primary filtering water inlet main pipe 34 is provided with a total flow meter 40 for integrally monitoring the water flow of the filtering water inlet main pipe 14.

The filter inlet main pipe 14 is divided into a primary filter inlet pipe 15 and a secondary filter inlet pipe 16 outside the filter group 1, a primary filter inlet valve 17 and a secondary filter inlet valve 18 are respectively arranged on the primary filter inlet pipe 15 and the secondary filter inlet pipe 16, a YS1 primary filter inlet valve 17 and an RC1 secondary filter inlet valve 18 are arranged on the first pool 45, a YS2 primary filter inlet valve 17 and an RC2 secondary filter inlet valve 18 are arranged on the second pool 46, a YS3 primary filter inlet valve 17 and an RC3 secondary filter inlet valve 18 are arranged on the third pool 47, and a YS4 primary filter inlet valve 17 and an RC4 secondary filter inlet valve 18 are arranged on the fourth pool 48. The primary filtering water inlet pipes 15 of the four filter groups 1 are connected in parallel to a primary filtering water inlet main pipe 34, one end of the primary filtering water inlet main pipe 34 is connected to the source water 43, and one end of the primary filtering water inlet main pipe 34 is provided with a YS5 primary filtering water inlet main valve 35; the secondary filtering water inlet pipes 16 of all the filter groups 1 are connected in parallel to a secondary filtering water inlet main pipe 37, and one end of the secondary filtering water inlet main pipe 37 is connected with the water inlet of the secondary filtering lift pump 28.

The terminal end of primary filter outlet manifold 26, the terminal end of secondary filter outlet manifold 30, and the terminal end of primary filter inlet manifold 34 are combined into a clean water manifold 36, and clean water manifold 36 is connected to a clean water basin 44. Because the water between the clean water tank 44 and the filter tank group 1 is transmitted by gravity, the clean water tank 44 is generally set to be underground or semi-underground, the water surface in the clean water tank 44 is far lower than the water surface in the filter tank group 1, so in order to control the flow rate of the transmitted water flow, and prevent the phenomenon that when the clean water tank 44 is filled with the first-stage pump station and stops running, all the water in the filter tank group 1 flows into the clean water tank 44 by gravity, so that no water exists in the filter tank group 1, and the filter material in the filter tank group 1 is exposed to the air, the tail end of the clean water main pipe 36 is provided with a U-shaped pipeline structure, and the highest elevation of the bottom of the U-shaped pipeline is 10cm higher than the upper surface of the filter material in the filter tank. And a siphon break pipe 41 is vertically arranged at the highest point of the U-shaped pipeline in order to prevent the siphon phenomenon caused by the water head difference and the water in the filter tank from being pumped out.

A pipe hole penetrating through the bottom of the filter group 1 is also provided with an emptying pipe 19, the emptying pipe 19 is provided with an emptying valve 20, a PK1 emptying valve 20 is arranged on a first pool 45, a PK2 emptying valve 20 is arranged on a second pool 46, a PK3 emptying valve 20 is arranged on a third pool 47, a PK4 emptying valve 20 is arranged on a fourth pool 48, the emptying pipes 19 of all the filter groups 1 are connected in parallel to an emptying main pipe 38, and one end of the emptying main pipe 38 is connected to an underground drainage pipe 42.

As shown in the figure, the four filter groups 1 are connected for use.

When the system is not operated for backwashing, all backwash water inlet valves 6, all backwash water discharge valves 4 and all prefilter water discharge valves 12 are in a closed state. When the system is not in maintenance operation, the YS5 primary filtering water inlet main valve 35 and all the emptying valves 20 are always in a closed state.

The method of using the once filtered water treatment is as follows.

When the source water 43 only contains iron or manganese, which exceeds the standard, and the standard can be reached only by one filtration treatment, the system is in a one-time water treatment operation state.

At this time, all the primary filtered water outlet initial main valves 27 of the secondary filtered water valves 11 and the J16 are in a closed state, all the primary filtered water inlet valves 17 are opened, the primary filtered water inlet main valve 35 of the YS5 is closed, the primary filtered water outlet end main valve 29 of all the primary filtered water valves 10 and the J15 is opened, and the primary filtered water outlet initial main valve 27 of the J16 is closed.

After the source water 43 is lifted by the selected and matched first-stage pump station, the source water directly enters the spray aeration tower 13 independently arranged at the upper part of each filter pool group 1 through the primary filtering water inlet header pipe 34 and the total flow meter 40 respectively and independently to carry out spray aeration on the source water 43, and the water quantity entering each filter pool group 1 can be respectively adjusted by the four primary filtering water inlet valves 17. The source water 43 releases volatile harmful substances in the water through aeration, and directly falls into the bottom of the filter tank group 1 for filtration after being fully oxygenated. The treated water passes through each primary filtered water outlet pipe 7, enters the primary filtered water outlet header pipe 26 and then flows into the clean water tank 44, and primary water treatment operation is completed.

The method of using the multiple filtered water treatment is as follows.

When iron and manganese in the source water 43 coexist and the two exceed standard values are higher, the water quality needs to be filtered for the second time to reach the standard. Through setting up secondary filter elevator pump 28, rely on the regulation transform of pipeline and valve, different combinations make certain or a plurality of filter tank group 1 in the system can both make up the transform at will according to source water quality of water condition and use as a filter tank group 1 or secondary filter tank group 1, realize that a system just can the deironing simultaneously, the purpose of demanganizing. At this time, the first tank 45 and the third tank 47 are taken as the primary filtration tank set 1 to perform iron removal by the treatment of the source water 43, and the second tank 46 and the fourth tank 48 are taken as the secondary filtration tank set 1 to perform secondary manganese removal by the example.

Closing the primary filtering water outlet end main valve 29 of the J15 to prevent water after primary filtering from entering the clean water tank 44, closing the primary filtering water outlet valve 10 of the J12, the primary filtering water outlet valve 10 of the J14, the secondary filtering water outlet valve 11 of the J21 and the secondary filtering water outlet valve 11 of the J23, and opening the primary filtering water outlet main valve 27 of the primary filtering water outlet valve 31 of the J25, the secondary filtering water outlet valve 11 of the J22, the secondary filtering water outlet valve 11 of the J24, the primary filtering water outlet valve 10 of the J11, the primary filtering water outlet valve 10 of the J13 and the primary filtering water outlet valve 27 of the J16. The YS1 primary filtering water inlet valve 17, the YS3 primary filtering water inlet valve 17, the RC2 secondary filtering water inlet valve 18 and the RC4 secondary filtering water inlet valve 18 are opened, and the YS2 primary filtering water inlet valve 17, the YS4 primary filtering water inlet valve 17, the RC1 secondary filtering water inlet valve 18 and the RC3 secondary filtering water inlet valve 18 are closed.

Source water 43 conveyed from a first-stage pump station enters the first tank 45 and the third tank 47 through a primary filtering water inlet pipe 15 of the first tank 45 and a primary filtering water inlet pipe 15 of the third tank 47 through a primary filtering water inlet pipe 34, enters the first tank 45 and the third tank 47 through a primary filtering water outlet pipe 7 of the first tank 45 and a primary filtering water outlet pipe 7 of the third tank 47 to a primary filtering water outlet main 26 after aeration and primary filtering, is lifted by a secondary filtering lifting pump 28, enters the second tank 46 and the fourth tank 48 through a secondary filtering water inlet pipe 16 of the second tank 46 and a secondary filtering water inlet pipe 16 of the fourth tank 48, is collected through a secondary filtering water outlet pipe 8 of the second tank 46 and a secondary filtering water outlet pipe 8 of the fourth tank 48 to a secondary filtering water outlet main 30 after secondary filtering and is conveyed to a clear water tank 44 through a clear water main 36, and completes different filtering functions of an independent filter tank group 1 in the system, i.e. for multi-functional purposes.

The backwash operation was as follows.

When the filter tank runs for a period, the filter material needs to be backwashed and regenerated. During backwashing, only one filter group can be used one by one, other filter groups 1 can normally operate, and the treated water can be used for backwashing the filter tank and can also be used for normally supplying water to the outside.

At this time, taking the backwashing second tank 46 as an example, the second tank 46 is switched to a backwashing state from a normal operation state, the first filtering water valve 10 of the valve J12 and the second filtering water valve 11 of the valve J22 are closed, the F2 backwashing water inlet valve 6, the P2 backwashing water discharge valve 4, the P5 backwashing water discharge main valve 22 are opened, the first filtering water inlet valve 17 of YS2 and the second filtering water inlet valve 18 of the RC2 are closed, and after the work is finished, the backwashing pump 25 is opened, and the second tank starts backwashing.

Backwash water is taken from the clean water tank 44, enters the second tank 46 through the F2 backwash water inlet valve 6, and is discharged out of the second tank 46 through the P2 backwash water discharge valve 4. After the backwashing is finished, the F2 backwashing water inlet valve 6 and the P2 backwashing water outlet valve 4 are closed, the backwashing pump 25 is closed, the YS2 primary filtering water inlet valve 17 or the RC2 secondary filtering water inlet valve 18 is opened (when the filter group is subjected to primary filtering, the YS2 primary filtering water inlet valve 17 is opened, and when the filter group is subjected to secondary filtering, the RC2 secondary filtering water inlet valve 18 is opened), the C2 primary filtering water outlet valve 12 is opened at the same time, the primary filtering water after the backwashing is discharged, after the discharged water is qualified, the C2 primary filtering water outlet valve is closed, the state before the backwashing is recovered, and the normal operation of the second pool 46 after the backwashing is finished.

The end of the primary filter inlet manifold 34 serves as an override line between the water supply and the clean water basin.

When the system is constructed and installed, the filter material in the filter tank group 1 is completely filled, the system needs to be debugged before formal use, and water treated by the system can enter the clean water tank 44 after backwashing is needed because the filter material is filled in the filter material initially and the impurities, dust and other substances are more. Since the clean water tank 44 is in an anhydrous state at the start of the adjustment, there is no filter material for backwashing with clean water. In this case, the source water 43 is introduced into the clean water tank 44 by using the end of the primary filter water inlet main pipe 34 as an overtaking pipe, and the backwashing is performed by the source water 43 by the backwashing pump 25. After the filter material is reversely washed, the primary filtering water inlet main valve 35 of YS5 is closed, the filter tank normally filters, the primary filter water is firstly discharged through the primary filter water discharge pipe 9 of each filter tank group 1, after the treated water of the filter tank group 1 is qualified, the primary filter water discharge pipe 9 is closed, the qualified treated water is injected into the clean water tank 44, and after the clean water tank 44 is cleaned and disinfected, the filter tank can be normally used, and the operation is only carried out once before debugging after the system is built.

Another situation where the primary filter inlet manifold 34 is used as an override line is when all filter stacks 1 are inoperative in an extreme event, the YS5 primary filter inlet manifold valve 35 may be opened to direct source water 43 into the clean water reservoir 44 as emergency water supply.

It should be understood that the detailed description of the present invention is only for illustrating the present invention and is not limited by the technical solutions described in the embodiments of the present invention, and those skilled in the art should understand that the present invention can be modified or substituted equally to achieve the same technical effects; as long as the use requirements are met, the method is within the protection scope of the utility model.

Claims (7)

1. The utility model provides a modular multi-functional water processing system, includes a plurality of consecutive filter banks group (1) that the structure is the same, its characterized in that, seted up into discharge gate (2) and a plurality of filter tube hole on the outer wall of filter banks group (1), the inside sand discharge tank of filter banks group (1) is connected with backwash drain pipe (3), backwash drain pipe (3) pass one the filter tube hole extends to be connected to filter banks group (1) outside, be provided with backwash drain valve (4) on backwash drain pipe (3), the inside big resistance water distribution dry pipe of filter banks group (1) is connected with backwash inlet tube (5), backwash inlet tube (5) pass one the filter tube hole extends to be connected to filter banks group (1) outside, be provided with backwash inlet valve (6) on backwash inlet tube (5), backwash inlet tube (5) still branch play once filter outlet pipe (7), Secondary filter outlet pipe (8) and primary filter drain pipe (9), primary filter outlet pipe (7), secondary filter outlet pipe (8) with be provided with primary filter outlet valve (10), secondary filter outlet valve (11) and primary filter drain valve (12) on primary filter drain pipe (9) respectively, filter group (1) top still is provided with spray aeration tower (13), spray aeration tower (13) are connected with and filter inlet manifold (14), filter inlet manifold (14) follow one the filter tube hole stretches out filter group (1) outside, filter inlet manifold (14) are in the outside branch one-time filtration inlet tube (15) and secondary filter inlet tube (16) of filter group (1), primary filter inlet tube (15) with be provided with primary filter inlet valve (17) and secondary filter inlet valve (18) on secondary filter inlet tube (16) respectively, an emptying pipe (19) is further arranged on one of the filter pipe holes penetrating through the bottom of the filter group (1), an emptying valve (20) is arranged on the emptying pipe (19), the backwashing water discharge pipes (3) of all the filter group (1) are connected in parallel to a backwashing water discharge main pipe (21), one end of the backwashing water discharge main pipe (21) is provided with a backwashing water discharge main valve (22), the backwashing water inlet pipes (5) of all the filter group (1) are connected in parallel to a backwashing water inlet main pipe (23), one end of the backwashing water inlet main pipe (23) is provided with a backwashing water inlet main valve (24), the other end of the backwashing water inlet main pipe (23) is connected with a backwashing pump (25), the primary filtering water outlet pipe (7) of all the filter group (1) is connected in parallel to a primary filtering water outlet main pipe (26), one end of the primary filtering water main pipe (26) is provided with a primary filtering water outlet initial main valve (27) and is connected with a secondary filtering lift pump (28), the other end of primary filter water outlet header pipe (26) is provided with primary filter water outlet terminal main valve (29), all of filter group (1) secondary filter outlet pipe (8) is parallelly connected to secondary filter water outlet header pipe (30), the one end of secondary filter water outlet header pipe (30) is provided with secondary filter water outlet terminal main valve (31), all of filter group (1) primary filter water outlet pipe (9) is parallelly connected to primary filter water outlet header pipe (32), the one end of primary filter water outlet header pipe (32) is provided with primary filter water outlet main valve (33), all of filter group (1) primary filter inlet pipe (15) is parallelly connected to primary filter inlet header pipe (34), the one end of primary filter inlet header pipe (34) is provided with primary filter inlet main valve (35), the terminal of primary filter outlet header pipe (26), the terminal of secondary filter water outlet header pipe (30) and the terminal of primary filter inlet header pipe (34) The filter groups are combined into a clear water main pipe (36), the secondary filtering water inlet pipes (16) of all the filter groups (1) are connected in parallel to a secondary filtering water inlet main pipe (37), one end of the secondary filtering water inlet main pipe (37) is connected with the secondary filtering lift pump (28), and the emptying pipes (19) of all the filter groups (1) are connected in parallel to an emptying main pipe (38).

2. The combined multifunctional water treatment system as claimed in claim 1, wherein all the filter groups (1) have the same height, which is 4.5m-4.8 m.

3. A combined multifunctional water treatment system according to claim 1, characterized in that each filtering water inlet manifold (14) is provided with a single-pool flow meter (39), and one end of the primary filtering water inlet manifold (34) is provided with a total flow meter (40).

4. A combined multi-functional water treatment system according to claim 1, characterized in that the clear water main (36) is terminated by a U-shaped pipe structure and vertically provided with a siphon break pipe (41).

5. A combined multi-functional water treatment system according to claim 1, characterized in that one end of the backwash main drain (21), one end of the backwash main inlet (23), one end of the prefilter main drain (32), one end of the drain main (38) are all connected to an underground drain (42).

6. A combined multi-functional water treatment system according to claim 1, characterized in that one end of the primary filtration inlet manifold (34) is connected to source water (43).

7. A modular multi-functional water treatment system according to claim 1 in which the clean water main (36) is connected to a clean water basin (44).

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