CN210457587U - Reverse osmosis concentrated water recycling equipment for pretreatment and backwashing - Google Patents
Reverse osmosis concentrated water recycling equipment for pretreatment and backwashing Download PDFInfo
- Publication number
- CN210457587U CN210457587U CN201921022471.7U CN201921022471U CN210457587U CN 210457587 U CN210457587 U CN 210457587U CN 201921022471 U CN201921022471 U CN 201921022471U CN 210457587 U CN210457587 U CN 210457587U
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- CN
- China
- Prior art keywords
- concentrated water
- pretreatment
- reverse osmosis
- water tank
- backwashing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 73
- 238000001223 reverse osmosis Methods 0.000 title claims abstract description 31
- 238000011001 backwashing Methods 0.000 title claims abstract description 24
- 238000004064 recycling Methods 0.000 title claims abstract description 13
- 239000012141 concentrate Substances 0.000 claims description 7
- 238000011084 recovery Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000005260 corrosion Methods 0.000 abstract description 2
- 238000009434 installation Methods 0.000 abstract description 2
- 239000002351 wastewater Substances 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 238000010612 desalination reaction Methods 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000011780 sodium chloride Substances 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L Calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 1
- 229910052925 anhydrite Inorganic materials 0.000 description 1
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Inorganic materials [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 235000010216 calcium carbonate Nutrition 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Abstract
The reverse osmosis concentrated water recycling device for pretreatment backwashing comprises a concentrated water tank (1), a backwashing pump (2), a high-pressure pump (3), a reverse osmosis device (4), a pretreatment water tank (5) and an external discharge pipe (6); the concentrated water tank (1) is simultaneously connected with a backwashing pump (2) and a high-pressure pump (3), wherein the high-pressure pump (3) is connected with a reverse osmosis device (4), and then the concentrated water tank is respectively connected with a pretreatment water tank (5) and an external discharge pipe (6). The system structure configuration has strong pertinence, obvious effect and low operation cost; the overall dimension of the equipment manufacture meets the requirements of water treatment equipment, the installation is convenient, and the occupied area is reduced; the work is safe, energy-saving and reliable, and the operation and the maintenance are convenient; the recovery rate of concentrated water is high, and the discharged wastewater is less; meanwhile, the requirements of corrosion resistance, flow and pressure are met, the overall layout is simple and reasonable, and the requirements of national related greening and environmental protection fire protection regulations are met; ensuring long-term stable operation.
Description
Technical Field
The utility model relates to a reverse osmosis concentrated water recycling innovation equipment device's institutional advancement technique, especially the reverse osmosis concentrated water recycling equipment of preliminary treatment backwash.
Background
The reverse osmosis technology is widely applied to various industries as an efficient and clean desalination technology, but concentrated water accounting for about 25% of total water inflow is discharged in the production process, which causes great waste of water resources at present when water resources are increasingly short, and further popularization of the reverse osmosis technology is seriously hindered.
The composition of the reverse osmosis discharge concentrate typically includes:
(1) the salt and silicon dioxide content is high, the pH value is high, and the alkalinity is large;
(2) scaling salts have much larger ionic products than their solubility products, such as: CaCO3, CaSO4, BaSO4, SrSO 4;
(3) bacteria and organic matters exist.
Therefore, the discharge of the reverse osmosis concentrated water is not negligible loss.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a dense water recycling equipment of reverse osmosis of preliminary treatment backwash to overcome prior art defect, solve above technical problem.
The purpose of the utility model is realized by the following technical measures: the device comprises a concentrated water tank, a backwashing pump, a high-pressure pump, a reverse osmosis device, a pretreatment water tank and an external discharge pipe; the concentrated water tank is simultaneously connected with a backwashing pump and a high-pressure pump, wherein the high-pressure pump is connected with the reverse osmosis device, and then the concentrated water tank is respectively connected with the pretreatment water tank and the external discharge pipe.
Particularly, the top of the concentrated water tank is connected with a water inlet pipe.
Particularly, the backwashing pump is further connected with a flushing recycling pipe.
Particularly, the volume of the concentrated water tank is larger than that of the pretreatment water tank.
Particularly, the concentrated water tank is connected with a backwashing pump and a high-pressure pump through an electromagnetic valve.
Particularly, the inflow flow of the pretreatment water tank is larger than the flow of the external discharge pipe.
Particularly, a pH meter is arranged on a connecting pipeline of the backwashing pump and the high-pressure pump.
The utility model discloses an advantage and effect: the system structure configuration has strong pertinence, obvious effect and low operation cost; the overall dimension of the equipment manufacture meets the requirements of water treatment equipment, the installation is convenient, and the occupied area is reduced; the work is safe, energy-saving and reliable, and the operation and the maintenance are convenient; the recovery rate of concentrated water is high, and the discharged wastewater is less; meanwhile, the requirements of corrosion resistance, flow and pressure are met, the overall layout is simple and reasonable, and the requirements of national related greening and environmental protection fire protection regulations are met; ensuring long-term stable operation.
Drawings
Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention.
The reference numerals include:
1-concentrated water tank, 2-backwashing pump, 3-high pressure pump, 4-reverse osmosis device, 5-pretreatment water tank, 6-external discharge pipe, 7-water inlet pipe and 8-washing recycling pipe.
Detailed Description
The utility model discloses the principle lies in, the product water conductivity of reverse osmosis dense water retrieval and utilization device generally <30s/cm, can regard as the feedwater of boiler through mixing the bed refining again, also can regard as other process water. At present, water resources are short, and the recovery and the utilization of the part of water resources have good economic benefits and social benefits.
The utility model discloses a: concentrated water tank 1, backwash pump 2, high-pressure pump 3, reverse osmosis unit 4, preliminary treatment water tank 5 and outward discharge pipe 6.
The present invention will be further explained with reference to the drawings and examples.
Example 1: as shown in the attached figure 1, a concentrated water tank 1 is simultaneously connected with a backwashing pump 2 and a high-pressure pump 3, wherein the high-pressure pump 3 is connected with a reverse osmosis device 4, and then is respectively connected with a pretreatment water tank 5 and an external discharge pipe 6.
In the foregoing, the top of the concentrated water tank 1 is connected to the water inlet pipe 7.
In the above, the backwash pump 2 is further connected to a flushing reuse pipe 8.
In the foregoing, the concentrate tank 1 has a larger volume than the pretreatment tank 5.
In the foregoing, the concentrate tank 1 is connected to the backwash pump 2 and the high-pressure pump 3 via electromagnetic valves.
In the foregoing, the inflow rate of the pretreatment water tank 5 is greater than the flow rate of the external discharge pipe 6.
The embodiment of the utility model provides an in, install the pH meter on backwash pump 2 and the 3 connecting lines of high-pressure pump, simultaneously, backwash pump 2, high-pressure pump 3 are connected to PLC program control, implement automatic operation management.
In the embodiment of the utility model, the reverse osmosis concentrated water enters the concentrated water tank 1 through the water inlet pipe 7 after being collected, when the pretreatment system needs backwashing, a part of concentrated water in the concentrated water tank 1 can be output by the washing and recycling pipe 8 through the backwashing pump 2 to clean the pretreatment system, so that raw water washing is replaced, and the raw water is saved; a part of concentrated water can enter the reverse osmosis device 4 after being pressurized by the high-pressure pump 3 for further desalination, and the treated produced water enters the pretreatment water tank 5 for recycling, so that the treatment capacity of the pretreatment system is reduced, the recovery rate of the system is improved, and the consumption of raw water is reduced. The concentrated concentrate passing through the reverse osmosis device 4 is directly discharged through the outer drain pipe 6. Compared with the prior art that the reverse osmosis concentrated water is directly discharged, the discharge amount is reduced, and the utilization rate of the water is improved.
Claims (7)
1. The reverse osmosis concentrated water recycling device for pretreatment backwashing comprises a concentrated water tank (1), a backwashing pump (2), a high-pressure pump (3), a reverse osmosis device (4), a pretreatment water tank (5) and an external discharge pipe (6); the device is characterized in that the concentrated water tank (1) is simultaneously connected with a backwashing pump (2) and a high-pressure pump (3), wherein the high-pressure pump (3) is connected with a reverse osmosis device (4), and then the concentrated water tank is respectively connected with a pretreatment water tank (5) and an external discharge pipe (6).
2. The reverse osmosis concentrated water reuse device for pretreatment backwashing according to claim 1, wherein a water inlet pipe (7) is connected to the top of the concentrated water tank (1).
3. The reverse osmosis concentrated water reuse apparatus for pretreatment backwashing according to claim 1, wherein the backwash pump (2) is further connected to a flush reuse pipe (8).
4. The apparatus for recycling reverse osmosis concentrate of pretreatment backwashing according to claim 1, wherein the concentrate tank (1) has a larger volume than the pretreatment tank (5).
5. The reverse osmosis concentrated water reuse apparatus for pretreatment backwashing according to claim 1, wherein the concentrated water tank (1) is connected to the backwashing pump (2) and the high pressure pump (3) through a solenoid valve.
6. The apparatus for recycling reverse osmosis concentrate of pretreatment backwashing according to claim 1, wherein the inflow rate of the pretreatment water tank (5) is greater than the flow rate of the external discharge pipe (6).
7. The reverse osmosis concentrated water reuse apparatus for pretreatment backwashing according to claim 1, wherein a pH meter is installed on a connection line of the backwash pump (2) and the high pressure pump (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921022471.7U CN210457587U (en) | 2019-07-01 | 2019-07-01 | Reverse osmosis concentrated water recycling equipment for pretreatment and backwashing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921022471.7U CN210457587U (en) | 2019-07-01 | 2019-07-01 | Reverse osmosis concentrated water recycling equipment for pretreatment and backwashing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210457587U true CN210457587U (en) | 2020-05-05 |
Family
ID=70443315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921022471.7U Active CN210457587U (en) | 2019-07-01 | 2019-07-01 | Reverse osmosis concentrated water recycling equipment for pretreatment and backwashing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210457587U (en) |
-
2019
- 2019-07-01 CN CN201921022471.7U patent/CN210457587U/en active Active
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