Urban multi-water-source optimized water purification treatment device

Abstract

The utility model discloses an urban multi-water-source optimized water purification treatment device which comprises a switching pipeline, a section of first treatment unit and a section of second treatment unit which are connected with the switching pipeline, a water outlet pipeline arranged at the other ends of the first treatment unit and the second treatment unit, and a control assembly for controlling the flow direction of raw water, the first treatment unit comprises a flocculation sedimentation tank, a sand filter tank and an ozone activated carbon tank which are communicated in sequence; the second treatment unit comprises a pre-ozone treatment tank, a flocculation sedimentation tank, a sand filter tank, an ozone activated carbon tank, an ultrafiltration membrane tank and a nanofiltration membrane tank which are communicated in sequence. According to the water purifying device, the flow direction of the raw water can be adjusted according to the pH value of the raw water through the arrangement of the control assembly and the matching of the upper switching pipeline, compared with an existing water purifying process in which single raw water is matched with a corresponding water purifying process, the water purifying device is more flexible, the raw water can be subjected to different water purifying treatments according to the change of the raw water, and the water purifying efficiency is improved. Therefore, the water purification effect is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to water purification treatment device technical field, concretely relates to a city multi -water source optimization water purification treatment device. BACKGROUND

[0002] With the increasing expansion of urban population, the demand of urban water source is also more and more big. The water source supply of existing city mainly comes from river, lake, pond and stream etc.;In addition, the urban wetland can also be used as the water source of resident life water, industrial production water and agricultural irrigation water;The reservoir area water source of the city adjacent area is also the water source of the city.

[0003] The water quantity of river, lake and other natural water sources will be influenced by season and climate condition, there is the change of dry season and wet season, single water source can not satisfy the water supply demand of city in dry season, therefore needs through multiple different water sources, such as reservoir, river, wetland, lake etc. to provide stable water source for city.

[0004] At present, the water purification treatment process of various water sources of city is independent of each other, does not interfere with each other, this although can exclude the mutual influence between water sources, but also brought adverse effects, such as: different water sources need to use different treatment process, even the same water source, different seasons, also need to use different treatment process;Specifically, when the impurities in raw water are too much, the raw water needs to remove impurities;And part of raw water will appear seasonal algal outbreak, and cause the water body pH value to rise greatly, need to adjust the pH value;The existing treatment device cannot be adjusted in time according to the raw water condition, which affects the purification effect of raw water.

[0005] Therefore, how to provide a water purification device suitable for double water source or multiple water sources is a technical problem that needs to be solved urgently. CONTENT OF UTILITY MODEL

[0006] The utility model aims at providing a city multi -water source optimization water purification treatment device, solves the problem that the existing water purification device cannot adjust the water accumulation device in time according to the raw water condition in the background art, leading to poor effect on raw water essence.

[0007] In order to achieve the above object, the utility model provides a city multi -water source optimization water purification treatment device, which comprises a switching pipeline, a first treatment unit and a second treatment unit connected with the switching pipeline, a water outlet pipeline arranged on the other end of the first treatment unit and the second treatment unit, and a control assembly for controlling the flow direction of raw water;The first treatment unit comprises a flocculation sedimentation tank, a sand filter tank and an ozone activated carbon tank connected in sequence;The second treatment unit comprises a pre-ozone treatment tank, a flocculation sedimentation tank, a sand filter tank, an ozone activated carbon tank, an ultrafiltration membrane tank and a nanofiltration membrane tank connected in sequence.

[0008] Optionally, the switching pipeline comprises a plurality of raw water pipes, a two-position three-way valve arranged on the raw water pipe, a first unit pipe and a second unit pipe arranged on the two-position three-way valve, a first water inlet pipe connected with the first treatment unit, and a second water inlet pipe connected with the second treatment unit, wherein the second water inlet pipe is connected with the second unit pipe, and the first water inlet pipe is connected with the first unit pipe; and the two-position three-way valve is connected with the control assembly.

[0009] Optionally, the control assembly comprises a controller, a first pH sensor arranged on the raw water pipe and connected with the controller, a carbon dioxide booster pump connected with the controller, a carbon dioxide storage tank connected with the carbon dioxide booster pump, an electromagnetic valve arranged on a communication pipeline between the carbon dioxide storage tank and the carbon dioxide booster pump, an aeration main pipe arranged at an air outlet of the carbon dioxide booster pump, a plurality of aeration branch pipes arranged on the aeration main pipe, and a plurality of groups of aeration branch pipes connected with the ozone activated carbon pool, the ultrafiltration membrane pool and the nanofiltration membrane pool, respectively.

[0010] Optionally, the pre-ozone treatment pool comprises a pre-ozone pool body, a first baffle arranged at equal intervals in the pre-ozone pool body, and a second baffle arranged in the pre-ozone pool body and staggered with the first baffle, wherein the first baffle is provided with a plurality of air holes, an ozone air inlet pipe is mounted on the air holes, an ozone aeration head is mounted on both end faces of the first baffle and connected with the air holes, a first water passage is formed between the bottom surface of the first baffle and the bottom surface of the inner cavity of the pre-ozone pool body, and a second water passage is formed between the top surface of the second baffle and the top surface of the pre-ozone pool body.

[0011] Optionally, the flocculation and sedimentation pool comprises a sedimentation pool body, a flocculant adding pipe mounted on the sedimentation pool body, a plurality of baffles mounted in the sedimentation pool body in a staggered manner, and a filter mounting plate mounted on the baffles and the sedimentation pool body.

[0012] Optionally, the filter mounting plate comprises a frame body mounted on the baffles and the sedimentation pool body and located at the water outlet of the sedimentation pool body, a traction column movably mounted on the frame body, a limiting nut mounted on the top plate of the traction column, a mounting frame mounted at the bottom of the traction column, and a sedimentation filter screen mounted on the mounting frame.

[0013] Optionally, the sand filter pool comprises a sand filter pool body, a support plate mounted in the sand filter pool body, a first sand filter layer arranged on the top of the support plate, a second sand filter layer arranged on the first sand filter layer, and a filter screen mounted on the sand filter pool body, wherein the support plate is provided with a through hole, the hole diameter of the through hole is smaller than the size of the particles of the first sand filter layer, the size of the particles of the first sand filter layer is larger than the size of the particles of the second sand filter layer, and the second sand filter layer is located between the first sand filter layer and the filter screen.

[0014] Optionally, the ozone-activated carbon tank comprises an activated carbon tank body, partition plates equidistantly arranged in the activated carbon tank body, placing cavities arranged on the partition plates, and activated carbon filled in the placing cavities.

[0015] Optionally, the bottom surface of the partition plate is provided with a groove, an aeration head is arranged in the groove, the partition plate is provided with an aeration connecting hole connected with the aeration head, the number of the partition plates is three, the aeration connecting holes of the three partition plates are respectively connected with different gases, and the partition plate is provided with a through hole with a diameter smaller than the particle size of the activated carbon.

[0016] Optionally, the ultrafiltration membrane tank comprises an ultrafiltration tank body, an ultrafiltration membrane assembly arranged in the ultrafiltration tank body, and a second aeration pipe arranged on the ultrafiltration tank body, wherein the bottom of the ultrafiltration membrane assembly is connected with a water outlet pipeline.

[0017] Optionally, the nanofiltration membrane tank comprises a nanofiltration tank body, a nanofiltration membrane assembly arranged in the nanofiltration tank body, and a third aeration pipe arranged on the nanofiltration tank body, wherein the bottom of the nanofiltration membrane assembly is connected with a water outlet pipeline.

[0018] Optionally, the second aeration pipe and the third aeration pipe are connected with an aeration pump, the air inlet end of the aeration pump is connected with an oxygen storage tank, and the ends of the aeration branch pipes arranged in the ultrafiltration tank body and the nanofiltration tank body are annularly arranged around the membrane assemblies.

[0019] Compared with the prior art, the urban multi-water-source optimized water purification treatment device has the following beneficial effects:

[0020] The urban water source optimized water purification treatment device can adjust the flow direction of raw water according to the pH value of the raw water, so that the raw water selects different treatment units, and compared with the single raw water cooperating with the corresponding water purification process, the water purification device is more flexible, can make the raw water be subjected to different water purification treatments according to the change of the raw water, and thus the water purification effect is improved.

[0021] In addition, no strong acid, strong alkali or other chemical agents are used in the whole water purification process of the present application, the pollution to the environment and the risk of operation can be effectively reduced, carbon dioxide is used for adjusting the pH value of the water body, the change speed of the pH of the water body is slowed down, the precision of the pH control is improved, and the situation that the pH of the water body is too low is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is a schematic view of the overall structure of the present application.

[0023] Figure 2 is a schematic view of the structure of the pre-ozone treatment tank of the present application. is a schematic view of the structure of the pre-ozone treatment tank of the present application.

[0024] Figure 3 It is the structural schematic diagram of the flocculation sedimentation tank of the utility model.

[0025] Figure 4 It is the structural schematic diagram of the sand filter tank of the utility model Figure 3 It is the local enlarged view of A place in the utility model.

[0026] Figure 5 It is the structural schematic diagram of the sand filter tank of the utility model

[0027] Figure 6 It is the structural schematic diagram of the ozone activated carbon tank of the utility model.

[0028] Figure 7 It is the structural schematic diagram of the partition plate of the utility model.

[0029] Figure 8 It is the sectional view of the partition plate of the utility model.

[0030] Figure 9 It is the local enlarged view of B place in the utility model. Figure 8

[0031] Figure 10 It is the structural schematic diagram of the ultrafiltration membrane tank of the utility model.

[0032] Figure 11 It is the structural schematic diagram of the nanofiltration membrane tank of the utility model.

[0033] ​Identified in the figure: 1, switching pipeline; 11, raw water pipe; 12, two-position three-way valve; 13, first unit pipe; 14, second unit pipe; 15, first water inlet pipe; 16, second water inlet pipe; 2, pre-ozone treatment tank; 21, pre-ozone tank body; 22, first baffle; 23, second baffle; 24, air hole; 25, ozone inlet pipe; 251, ozone aeration pump; 252, ozone storage tank; 26, ozone aeration head; 27, first water passage; 28, second water passage; 3, flocculation sedimentation tank; 31, sedimentation tank body; 32, flocculant adding pipe; 33, resistance plate; 34, filter mounting plate; 341, frame; 342, traction column; 343, limiting nut; 344, mounting frame; 345, sedimentation filter screen; 4, sand filter tank; 41, sand filter tank body; 42, support plate; 421, through hole; 43, first sand filter layer; 44, second sand filter layer; 45, filter screen; 5, ozone activated carbon tank; 51, activated carbon tank body; 53, partition plate; 531, groove; 532, aeration head; 533, aeration connecting hole; 534, through hole; 54, placement cavity; 55, activated carbon; 6, ultrafiltration membrane tank; 61, ultrafiltration tank body; 62, ultrafiltration membrane assembly; 63, second aeration pipe; 64, aeration pump; 65, oxygen storage tank; 7, nanofiltration membrane tank; 71, nanofiltration membrane tank body; 72, nanofiltration membrane assembly; 73, third aeration pipe; 8, water outlet pipeline; 9, control assembly; 92, first pH sensor; 93, carbon dioxide booster pump; 94, carbon dioxide storage tank; 95, electromagnetic valve; 96, aeration main pipe; 97, aeration branch pipe. DETAILED DESCRIPTION

[0034] The present application is described in detail below with reference to the accompanying drawings and specific embodiments. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. It will be apparent, however, to one skilled in the art that the present application can be practiced in a variety of ways beyond those specifically described herein, and that the present application is not limited to the specific embodiments described below.

[0035] The urban multi-source optimized water treatment device of the present application can be used for water treatment of multiple water sources, and can also be used for other similar application scenarios. A detailed description of the urban multi-source optimized water treatment device is given below.

[0036] Reference is made to the accompanying drawings Figure 1 Figure 11 ​As shown in the drawing, the structure of the city multi-source optimized water purification treatment device is shown. The city multi-source optimized water purification treatment device comprises a switching pipeline 1, a first treatment unit and a second treatment unit connected with the switching pipeline 1, a water outlet pipeline 8 arranged on the other end of the first treatment unit and the second treatment unit, and a control assembly 9 for controlling the flow direction of raw water; the first treatment unit comprises a flocculation sedimentation tank 3, a sand filter tank 4 and an ozone activated carbon tank 5 connected in sequence; the second treatment unit comprises a pre-ozone treatment tank 2, a flocculation sedimentation tank 3, a sand filter tank 4, an ozone activated carbon tank 5, an ultrafiltration membrane tank 6 and a nanofiltration membrane tank 7 connected in sequence.

[0037] The setting of the switching pipeline 1 can adjust the flow direction of the raw water, so that the raw water flows into the corresponding treatment unit; the setting of the first treatment unit and the second treatment unit can treat the raw water with different pH values, so that the water purification efficiency is improved under the premise of ensuring the water purification effect; the setting of the flocculation sedimentation tank 3 is used for mixing the raw water and the flocculant, so that the impurities in the raw water are flocculated and precipitated, and the raw water is preliminarily filtered and purified; the setting of the sand filter tank 4 removes the larger particles and turbid substances in the sewage, provides cleaner water quality conditions for the subsequent treatment process, and thus improves the overall treatment efficiency; the setting of the ozone activated carbon tank 5 can oxidize the organic matter into inorganic substances, remove the color and turbidity in the water, improve the transparency and cleanliness of the water, and cooperate with the strong adsorption capacity of the activated carbon to adsorb the organic matter and peculiar smell substances in the water on the surface, so as to realize the purification and deodorization effect of the water; the setting of the ultrafiltration membrane tank 6 and the nanofiltration membrane tank 7 filters by a physical method without adding chemical reagents, avoids the secondary pollution of the water quality, and ensures the safety of the treated water quality; the setting of the control assembly 9 can monitor the pH of the raw water, so as to control the switching of the switching pipeline 1, adjust the pH value of the water body by carbon dioxide, make carbon dioxide react with water to produce carbonic acid, and ionize hydrogen ions in the water to reduce the pH value of the raw water, reduce the residual aluminum content of the finished water, prevent the aluminum ions from penetrating the membrane assembly to damage and pollute the membrane, and provide protection for human health.

[0038] Referring to the drawings Figure 1 As shown in the drawing, the structure of the city multi-source optimized water purification treatment device is shown. The city multi-source optimized water purification treatment device comprises a switching pipeline 1, a first treatment unit and a second treatment unit connected with the switching pipeline 1, a water outlet pipeline 8 arranged on the other end of the first treatment unit and the second treatment unit, and a control assembly 9 for controlling the flow direction of raw water; the first treatment unit comprises a flocculation sedimentation tank 3, a sand filter tank 4 and an ozone activated carbon tank 5 connected in sequence; the second treatment unit comprises a pre-ozone treatment tank 2, a flocculation sedimentation tank 3, a sand filter tank 4, an ozone activated carbon tank 5, an ultrafiltration membrane tank 6 and a nanofiltration membrane tank 7 connected in sequence; the switching pipeline 1 comprises a plurality of raw water pipes 11, two-position three-way valves 12 arranged on the raw water pipes 11, first unit pipes 13 and second unit pipes 14 arranged on the two-position three-way valves 12, a first water inlet pipe 15 connected with the first treatment unit, and a second water inlet pipe 16 connected with the second treatment unit; the second water inlet pipe 16 is connected with the second unit pipe 14, and the first water inlet pipe 15 is connected with the first unit pipe 13; the two-position three-way valves 12 are connected with the controller.

[0039] The utility model discloses a through the setting of raw water pipe 11 makes multiple raw water to the city water supply, guarantees sufficient, stable city water use, through the setting of two position three -way valve 12, can control raw water pipe 11 water flow direction, makes the raw water of pH higher than the specified range flow into second processing unit, makes the raw water of pH in the specified range flow into first processing unit, through the setting of first unit pipe 13 and second unit pipe 14, the raw water after distinguishing is guided, through the setting of first water inlet pipe 15 and second water inlet pipe 16, as the water inlet main pipe, the multiple raw water after distinguishing is converged and unified flow into processing unit.

[0040] Refer to the accompanying Figure 1 And Figure 2 As shown in the utility model, the pre-ozone treatment tank 2 includes a pre-ozone tank body 21, a first baffle plate 22 arranged at equal intervals in the pre-ozone tank body 21, a second baffle plate 23 arranged in the pre-ozone tank body 21 and staggered with the first baffle plate 22, a plurality of air holes 24 provided on the first baffle plate 22, an ozone inlet pipe 25 installed on the air holes 24, an ozone aeration head 26 installed on both end faces of the first baffle plate 22 and communicated with the air holes 24, a first water passage 27 formed between the bottom surface of the first baffle plate 22 and the bottom surface of the inner cavity of the pre-ozone tank body 21, and a second water passage 28 formed between the top surface of the second baffle plate 23 and the top surface of the pre-ozone tank body 21.

[0041] The utility model discloses a through the setting of first baffle plate 22 and second baffle plate 23, the water body is blocked, reduces water flow velocity, prolongs the time of water body in pre-ozone tank body 21, improves ozone aeration effect, through the setting of air hole 24, ozone inlet pipe 25 and ozone aeration head 26, the water body is carried out ozone aeration, ensures that water body and ozone mix fully, ensures that ozone can carry out pre -treatment to water body.

[0042] It should be particularly noted that one end of the ozone inlet pipe 25 away from the pre-ozone treatment tank 2 is connected with an ozone aeration pump 251, and an ozone storage tank 252 is connected to the air inlet pipe of the ozone aeration pump 251.

[0043] Refer to the accompanying Figure 1 And Figure 3 As shown in the utility model, the flocculation sedimentation tank 3 includes a sedimentation tank body 31, a flocculant adding pipe 32 installed on the sedimentation tank body 31, a plurality of baffles 33 staggered installed in the sedimentation tank body 31, and a filter mounting plate 34 installed on the baffles 33 and the sedimentation tank body 31.

[0044] The utility model discloses a flocculating agent adding pipe 32 is set up, is used for adding flocculating agent, and water body carries out flocculation and deposits, through the setting of the flow resistance plate 33, can ensure that flocculating agent and water body can carry out sufficient mixing, carry out flocculation and deposit, through the setting of the filter mounting plate 34, can filter water body, ensure that the impurity after flocculation does not enter the next pool body.

[0045] Referring to the accompanying Figure 1 , Figure 3 and Figure 4 , in the utility model, the filter mounting plate 34 includes the frame body 341 installed on the flow resistance plate 33 and the sedimentation pool body 31 and located at the water outlet of the sedimentation pool body 31, the traction column 342 movably installed on the frame body 341, the limiting nut 343 installed on the top plate of the traction column 342, the mounting frame 344 installed at the bottom of the traction column 342 and the sedimentation filter screen 345 installed on the mounting frame 344.

[0046] The utility model discloses a traction column 342's setting makes for can drive mounting frame 344 and move up and down, when the flocculation of adhering on sedimentation filter screen 345 is too much, can pass through the lowering of the water level of sedimentation pool body 31, subsequently through traction column 342 and pull mounting frame 344 upwards, make sedimentation filter screen 345 free falling's impact force shake off flocculation, reduce the cleaning difficulty of staff to sedimentation filter screen 345.

[0047] Referring to the accompanying Figure 4 and Figure 5 , in the utility model, the sand filter tank 4 includes the sand filter tank body 41, the supporting plate 42 installed in the sand filter tank body 41, the first sand filter layer 43 arranged on the top of the supporting plate 42, the second sand filter layer 44 arranged on the first sand filter layer 43, and the filter screen 45 installed on the sand filter tank body 41.

[0048] The utility model discloses a supporting plate 42's setting is used for supporting first sand filter layer 43, prevents the water inlet of sedimentation pool body 31 from being blocked by first sand filter layer 43, also can prevent the particulate matter of first sand filter layer 43 from entering the water inlet, through the setting of first sand filter layer 43, second sand filter layer 44 and filter screen 45, can filter water body multiple times, improve the filtration effect of water body, and filter screen 45 can limit the sand grain in second sand filter layer 44, prevent the sand grain at the top from flowing into ozone activated carbon tank 5 with water flow.

[0049] Referring to the accompanying Figure 1 , Figure 6 — Figure 9As shown, in this utility model, the ozone activated carbon pool 5 includes an activated carbon pool body 51, partition plates 53 installed at equal intervals in the activated carbon pool body 51, a placement cavity 54 set on the partition plate 53, and activated carbon 55 filled in the placement cavity 54.

[0050] The present invention can support the activated carbon 55 by setting the partition plate 53; the activated carbon 55 can adsorb impurities in the water.

[0051] See appendix Figure 1 , Figure 6 — Figure 9 As shown, in this utility model, the bottom of the partition plate 53 is provided with a groove 531 that communicates with the placement cavity 54. An aeration head 532 is installed in the groove 531. The partition plate 53 is provided with an aeration connection hole 533, which is connected to the aeration head 532. There are three partition plates 53, and the aeration connection holes 533 on the three partition plates 53 aerate different gases respectively. The partition plate 53 is provided with a through hole 534, and the pore size of the through hole 534 is smaller than the particle size of the activated carbon 55.

[0052] This invention provides an installation position for the aeration head 532 through the groove 531, ensuring that the water can be aerated while adsorbing impurities. A filter screen can be installed at the opening of the groove 531, thereby effectively preventing the activated carbon 55 from clogging the aeration head 532. The through hole 534 ensures that the water can have sufficient contact with the activated carbon 55.

[0053] In addition, the aeration connection holes 533 on the three partition plates 53 are respectively connected to the aeration branch pipe 97 for carbon dioxide aeration, the ozone aeration pipe connected to the ozone aeration pump 251, and the oxygen aeration pipe for oxygen aeration. The ozone aeration pipe, the oxygen aeration pipe and the aeration branch pipe 97 have the same structure, only the gas used for aeration is different. All of them are pressurized by the pump body to pressurize the gas or liquid in the storage tank before aeration.

[0054] See appendix Figure 1 , Figure 10 As shown, in this utility model, the ultrafiltration membrane tank 6 includes an ultrafiltration tank body 61, an ultrafiltration membrane assembly 62 installed inside the ultrafiltration tank body 61, a second aeration pipe 63 installed on the ultrafiltration tank body 61, and the bottom of the ultrafiltration membrane assembly 62 is connected to the effluent pipe 8.

[0055] See appendix Figure 1 , Figure 11 As shown, in this utility model, the nanofiltration membrane tank 7 includes a nanofiltration membrane tank body 71, a nanofiltration membrane assembly 72 installed in the nanofiltration membrane tank body 71, and a third aeration pipe 73 installed on the nanofiltration membrane tank body 71. The bottom of the nanofiltration membrane assembly 72 is connected to the water outlet pipe 8.

[0056] Referring to the accompanying Figure 1 , Figure 10 and Figure 11 , in the utility model, the second aeration pipe 63, third aeration pipe 73 are connected with aeration pump 64, the air inlet end of this aeration pump 64 is connected with oxygen storage tank 65;The end of the aeration branch pipe 97 in the ultrafiltration pool body 61 and the nanofiltration membrane pool body 71 is annularly arranged around the membrane assembly. It needs to be specially pointed out that the oxygen storage tank 65 provides oxygen for the ozone activated carbon pool.

[0057] The utility model discloses the aeration branch pipe 97 in the ultrafiltration pool body 61 and nanofiltration membrane pool body 71 is arranged annularly by annular arrangement, and the membrane assembly is annularly aerated, to ensure that the water body after pH adjustment can enter the membrane assembly filtration.

[0058] Referring to the accompanying Figure 1 — Figure 11 , in the utility model, the control assembly 9 includes a controller, a first pH sensor 92 arranged on the raw water pipe 11 and connected with the controller, a carbon dioxide booster pump 93 connected with the controller, a carbon dioxide storage tank 94 connected with the carbon dioxide booster pump 93, an electromagnetic valve 95 arranged on the communication pipeline between the carbon dioxide storage tank 94 and the carbon dioxide booster pump 93, an aeration main pipe 96 arranged at the air outlet of the carbon dioxide booster pump 93, a plurality of aeration branch pipes 97 arranged on the aeration main pipe 96, and a plurality of aeration branch pipes 97 connected with the ozone activated carbon pool 5, the ultrafiltration membrane pool 6 and the nanofiltration membrane pool 7 respectively.

[0059] The utility model discloses the setting of the first pH sensor 92 can monitor the pH of raw water, so as to judge the treatment unit of raw water, make the controller control the two-position three-way valve 12 control, make raw water flow into the corresponding treatment unit.

[0060] Referring to the accompanying Figure 1 — Figure 11 , the working principle of the utility model is as follows:

[0061] Different raw water flows in different raw water pipes 11, and the pH value of the raw water is monitored by the corresponding first pH sensor 92, and the pH value is transmitted to the controller, and the controller controls the corresponding two-position three-way valve 12 to adjust, so that the raw water flows into the corresponding treatment unit for corresponding treatment;The whole treatment unit of the utility model does not use strong acid and strong base for adding, reduces the use of chemical additives, and reduces environmental pollution and operation risk.

[0062] The above examples are illustrative of the present application and are not limiting of the present application, and any simple transformation of the present application belongs to the protection scope of the present application.

Claims

1. A city multi-source optimized water purification treatment device, characterized in that, The switch pipeline (1), a first treatment unit and a second treatment unit connected with the switch pipeline (1), a water outlet pipeline (8) arranged at the other end of the first treatment unit and the second treatment unit, and a control assembly (9) for controlling the flow direction of raw water are included; The first treatment unit includes a flocculation sedimentation tank (3), a sand filter tank (4) and an ozone activated carbon tank (5) connected in sequence; The second treatment unit includes a pre-ozone treatment tank (2), a flocculation sedimentation tank (3), a sand filter tank (4), an ozone activated carbon tank (5), an ultrafiltration membrane tank (6) and a nanofiltration membrane tank (7) connected in sequence.

2. The urban multi-source optimized water purification treatment device according to claim 1, characterized in that, The switch pipeline (1) includes a plurality of raw water pipes (11), a two-position three-way valve (12) arranged on the raw water pipe (11), a first unit pipe (13) and a second unit pipe (14) arranged on the two-position three-way valve (12), a first water inlet pipe (15) connected with the first treatment unit, and a second water inlet pipe (16) connected with the second treatment unit, wherein the second water inlet pipe (16) is connected with the second unit pipe (14), and the first water inlet pipe (15) is connected with the first unit pipe (13). The two-position three-way valve (12) is connected with the control assembly (9).

3. The urban multi-source optimized water purification treatment device according to claim 2, characterized in that, The control assembly (9) includes a controller, a first pH sensor (92) arranged on the raw water pipe (11) and connected with the controller, a carbon dioxide booster pump (93) connected with the controller, a carbon dioxide storage tank (94) connected with the carbon dioxide booster pump (93), an electromagnetic valve (95) arranged on the communication pipeline between the carbon dioxide storage tank (94) and the carbon dioxide booster pump (93), an aeration main pipe (96) arranged at the gas outlet of the carbon dioxide booster pump (93), a plurality of aeration branch pipes (97) arranged on the aeration main pipe (96), and a plurality of aeration branch pipes (97) connected with the ozone activated carbon tank (5), the ultrafiltration membrane tank (6) and the nanofiltration membrane tank (7) respectively.

4. The urban multi-source optimized water purification treatment device according to claim 1, characterized in that, The pre-ozone treatment tank (2) includes a pre-ozone tank body (21), first baffles (22) arranged at equal intervals in the pre-ozone tank body (21), second baffles (23) arranged in the pre-ozone tank body (21) and staggered with the first baffles (22), a plurality of air holes (24) arranged on the first baffles (22), ozone inlet pipes (25) mounted on the air holes (24), ozone aeration heads (26) mounted on the both end faces of the first baffles (22) and connected with the air holes (24), and first water passing channels (27) formed between the bottom surface of the first baffles (22) and the bottom surface of the inner cavity of the pre-ozone tank body (21), and second water passing channels (28) formed between the top surface of the second baffles (23) and the top surface of the pre-ozone tank body (21).

5. The urban multi-source optimized water purification treatment device according to claim 1, characterized in that, The flocculation sedimentation tank (3) includes a sedimentation tank body (31), a flocculant adding pipe (32) mounted on the sedimentation tank body (31), a plurality of flow resistance plates (33) staggered mounted in the sedimentation tank body (31), and a filter mounting plate (34) mounted on the flow resistance plates (33) and the sedimentation tank body (31).

6. The urban multi-source optimized water purification treatment device according to claim 5, characterized in that, The filter mounting plate (34) comprises a frame (341) mounted on the baffle (33) and the sedimentation tank body (31) and located at the water outlet of the sedimentation tank body (31), a traction column (342) movably mounted on the frame (341), a limiting nut (343) mounted on the top plate of the traction column (342), a mounting frame (344) mounted on the bottom of the traction column (342), and a sedimentation filter screen (345) mounted on the mounting frame (344).

7. The urban multi-source optimized water purification treatment device according to claim 1, characterized in that, The sand filter tank (4) comprises a sand filter tank body (41), a support plate (42) mounted in the sand filter tank body (41), a first sand filter layer (43) arranged on the top of the support plate (42), a second sand filter layer (44) arranged on the first sand filter layer (43), and a filter screen (45) mounted on the sand filter tank body (41); The support plate (42) is provided with a through hole (421), and the aperture of the through hole (421) is smaller than the size of the particles of the first sand filter layer (43); The size of the particles of the first sand filter layer (43) is larger than the size of the particles of the second sand filter layer (44); The second sand filter layer (44) is located between the first sand filter layer (43) and the filter screen (45).

8. The urban multi-source optimized water purification treatment device according to claim 3, characterized in that, The ozone activated carbon tank (5) comprises an activated carbon tank body (51), partition plates (53) installed at equal intervals in the activated carbon tank body (51), a placing cavity (54) arranged on the partition plate (53), and activated carbon (55) filled in the placing cavity (54).

9. The urban multi-source optimized water treatment device according to claim 8, wherein, The bottom surface of the partition plate (53) is provided with a groove (531), and an aeration head (532) is mounted in the groove (531). The partition plate (53) is provided with an aeration connecting hole (533) connected with the aeration head (532); The number of the partition plates (53) is three, and the aeration connecting holes (533) on the three partition plates (53) aerate different gases respectively; The partition plate (53) is provided with a through hole (534), and the aperture of the through hole (534) is smaller than the size of the particles of the activated carbon (55).

10. The urban multi-source optimized water purification treatment device according to claim 3, characterized in that, The ultrafiltration membrane tank (6) comprises an ultrafiltration tank body (61), an ultrafiltration membrane assembly (62) mounted in the ultrafiltration tank body (61), a second aeration pipe (63) mounted on the ultrafiltration tank body (61), and the bottom of the ultrafiltration membrane assembly (62) is connected with the water outlet pipeline (8); The nanofiltration membrane tank (7) comprises a nanofiltration membrane tank body (71), a nanofiltration membrane assembly (72) mounted in the nanofiltration membrane tank body (71), a third aeration pipe (73) mounted on the nanofiltration membrane tank body (71), and the bottom of the nanofiltration membrane assembly (72) is connected with the water outlet pipeline (8); The second aeration pipe (63) and the third aeration pipe (73) are both connected with an aeration pump (64), and the air inlet end of the aeration pump (64) is connected with an oxygen storage tank (65); The ends of the aeration branch pipes (97) located in the ultrafiltration tank body (61) and the nanofiltration membrane tank body (71) are annularly arranged around the membrane assemblies.

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