CN211620019U - Reverse osmosis concentrated water recovery device - Google Patents
Reverse osmosis concentrated water recovery device Download PDFInfo
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- CN211620019U CN211620019U CN202020110067.1U CN202020110067U CN211620019U CN 211620019 U CN211620019 U CN 211620019U CN 202020110067 U CN202020110067 U CN 202020110067U CN 211620019 U CN211620019 U CN 211620019U
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- reverse osmosis
- water
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Abstract
The utility model relates to a reverse osmosis concentrated water recovery device in the technical field of demineralized water preparation in a thermal power plant, which comprises a raw water tank, a booster pump, a primary filter device, an ultrafiltration device, a high-pressure pump, a primary reverse osmosis filter, a secondary reverse osmosis filter, a concentrated water tank and a flushing pump which are connected in sequence, wherein a concentrated water pipe of the primary reverse osmosis filter is connected with a concentrated water security filter arranged at the inlet of the secondary reverse osmosis filter, a water production pipe of the secondary reverse osmosis filter is communicated to a water replenishing pipe at the top of the raw water tank, a concentrated water pipe of the secondary reverse osmosis filter is communicated to the concentrated water tank, an outlet pipe of the concentrated water tank, and a concentrated water valve and a flushing pump are sequentially arranged on an outlet pipe of the concentrated water tank, a water taking pipe is further connected to the outlet of the flushing pump, the water taking pipe is provided with the water taking valve, an overflow pipe is further arranged on the concentrated water tank, and a flushing valve is arranged at one end, close to the ultrafiltration device, of the outlet pipe of the concentrated water tank. The utility model discloses the dense water rate of recovery is high, and reducible wastewater discharge alleviates the short problem of power plant's summer water source.
Description
Technical Field
The utility model belongs to the technical field of the demineralized water preparation of thermal power plant, specifically, relate to a dense water recovery unit of reverse osmosis.
Background
The desalted water is a main energy conversion medium in the operation process of a steam turbine generator unit of a thermal power plant and needs to be prepared through a reverse osmosis filter. When the reverse osmosis filter operates normally, the generated concentrated water is often directly discharged through a trench, so that water resource waste is caused, the discharge capacity is increased, and the environment is polluted. In addition, when the water consumption is large in summer, the problem of shortage of water sources can occur, and therefore the safety, stability and economic operation of the steam turbine generator unit are affected.
Therefore, a reverse osmosis concentrated water recovery device is needed urgently to reduce waste water discharge, save water resource utilization, relieve the problem of water source shortage during the operation of a reverse osmosis filter in summer and ensure the safe, stable and economic operation of a turbo generator unit.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a reverse osmosis concentrated water recovery device, which comprises a raw water tank, a booster pump, a primary filter device, an ultrafiltration device, a high-pressure pump, a primary reverse osmosis filter, a secondary reverse osmosis filter, a concentrated water tank and a flushing pump which are connected in sequence through pipelines, wherein a concentrated water pipe of the primary reverse osmosis filter is connected with a concentrated water security filter arranged at the inlet of the secondary reverse osmosis filter, a water production pipe of the secondary reverse osmosis filter is communicated with a water replenishing pipe at the top of the raw water tank and is connected below a water replenishing valve on the water replenishing pipe, a concentrated water pipe of the secondary reverse osmosis filter is communicated with the concentrated water tank, an outlet pipe of the concentrated water tank is communicated with a flushing interface of the ultrafiltration device, a concentrated water valve and a flushing pump are sequentially arranged on the outlet pipe of the concentrated water tank, a water taking, the concentrated water tank is further provided with an overflow pipe, the overflow pipe is provided with an overflow valve, one end, close to the ultrafiltration device, of an outlet pipe of the concentrated water tank is provided with a flushing valve, the bottom of the ultrafiltration device is provided with a drain pipe, the drain pipe is provided with a drain valve, the first-stage reverse osmosis filter adopts a Dow reverse osmosis membrane, the second-stage reverse osmosis filter adopts a converging reverse osmosis membrane, and a water production valve is arranged on a water production pipe of the first-stage reverse osmosis filter.
Preferably, the concentrated water discharge amount of the first-stage reverse osmosis filter is less than or equal to the water inlet amount of the second-stage reverse osmosis filter. The device is used for enabling the secondary reverse osmosis filter to completely treat all concentrated water at the outlet of the primary reverse osmosis filter, realizing the maximum recovery of working media and saving water resources.
Preferably, the primary filter device comprises a medium filter, an activated carbon filter and a softened water filter which are sequentially connected in series according to the flowing direction of raw water, so that the primary filter of the raw water is realized.
The ultrafiltration device is a raw water safety filter, scale inhibitors are respectively arranged on the raw water safety filter and the concentrated water safety filter, and a dosing valve is arranged on the scale inhibitors dosing pipeline, so that the scale inhibitors can be conveniently added, and the service life of the reverse osmosis membrane is prolonged.
Preferably, the concentrate pipe of the first-stage reverse osmosis filter and the concentrate pipe of the second-stage reverse osmosis filter are both provided with a slow-opening valve which is used as a regular flushing switch valve of the first-stage reverse osmosis filter and the second-stage reverse osmosis filter.
The utility model discloses still including enabling this dense water recovery unit of reverse osmosis other subassemblies of normal use, be the conventional technological means in this field. In addition, the device or the component which is not limited in the utility model adopts the conventional technical means in the field.
The working principle of the utility model is that concentrated water discharged in the process of water production by the first-stage reverse osmosis filter is treated by the second-stage reverse osmosis filter and then sent into the raw water tank for reuse, concentrated water discharged by the second-stage reverse osmosis filter is sent into the concentrated water tank, the concentrated water in the concentrated water tank is connected into a flushing interface of the ultrafiltration device through a flushing pump for flushing of the ultrafiltration device so as to ensure the operation effect of the ultrafiltration device, a water taking pipe is connected to the outlet of the flushing pump, the water taking valve can be opened for greening spraying or sprinkling and dust suppression in a plant area, when the water level of the concentrated water tank exceeds the inlet of an overflow pipe, redundant concentrated water is discharged into a trench, the flushing valve and a blow-down valve are opened when the ultrafiltration device is flushed, sewage after flushing is discharged into the trench, the first-stage reverse osmosis filter adopts a ceramic reverse osmosis membrane, the desalination rate of produced water reaches 99.8%, various anions and then are removed by a cathode and anode, the second-stage reverse osmosis filter adopts a converging reverse osmosis membrane, so that the acquisition cost is low, the desalination rate of produced water reaches over 96 percent, and the recycling condition is met.
The beneficial effects of the utility model are that, this device simple structure can fully handle the dense water of one-level reverse osmosis filter in-service companion to the maximize utilizes the terminal dense water of second grade reverse osmosis filter companion, realizes the high-efficient comprehensive recovery of water resource, reduces wastewater discharge, and the dense water rate of recovery is high, has not only practiced thrift the water resource, has also alleviated the nervous problem of power plant summer water source.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a schematic view of the overall structure of the present invention.
Detailed Description
The present invention will be described more clearly with reference to the accompanying drawings and specific embodiments in the embodiments of the present invention, and the description herein is only for explaining the present invention, but not for limiting the present invention. Based on the embodiments of the present invention, any modifications, equivalent replacements, improvements, etc. made by other embodiments obtained by those skilled in the art without creative efforts should be included in the protection scope of the present invention.
Examples
As shown in figure 1, the utility model provides a reverse osmosis concentrated water recovery device, which comprises a raw water tank 1, a booster pump 2, a primary filter device 3, an ultrafiltration device 4, a high pressure pump 5, a primary reverse osmosis filter 6, a secondary reverse osmosis filter 7, a concentrated water tank 8 and a flushing pump 9 which are connected in sequence through pipelines, wherein a concentrated water pipe 6-1 of the primary reverse osmosis filter 6 is connected with a water inlet of the secondary reverse osmosis filter 7, a concentrated water pipe 6-1 of the primary reverse osmosis filter 6 is connected with a concentrated water security filter 10 arranged at an inlet of the secondary reverse osmosis filter 7, a water production pipe 7-1 of the secondary reverse osmosis filter 7 is communicated with a water replenishing pipe 1-1 at the top of the raw water tank 1 and is connected below a water replenishing valve 1-2 on the water replenishing pipe 1-1, and a concentrated water pipe 7-2 of the secondary reverse osmosis filter 7 is communicated with the concentrated water, an outlet pipe 8-1 of the concentrated water tank 8 is communicated with a flushing interface of the ultrafiltration device 4, a concentrated water valve 8-2 and a flushing pump 9 are sequentially arranged on the outlet pipe 8-1 of the concentrated water tank 8, an outlet of the flushing pump 9 is also connected with a water taking pipe 9-1, the water taking pipe 9-1 is provided with the water taking valve 9-2, the concentrated water tank 8 is also provided with an overflow pipe 8-3, the overflow pipe 8-3 is provided with an overflow valve 8-4, one end of the outlet pipe 8-1 of the concentrated water tank 8, which is close to the ultrafiltration device 4, is provided with a flushing valve 8-5, the bottom of the ultrafiltration device 4 is provided with a drain pipe 4-1, the drain pipe 4-1 is provided with a drain valve 4-2, the primary reverse osmosis filter 6 adopts a Tao's reverse osmosis membrane, and the secondary reverse, a water production valve 6-3 is arranged on a water production pipe 6-2 of the first-stage reverse osmosis filter 6.
The discharge amount of the concentrated water of the first-stage reverse osmosis filter 6 is less than or equal to the water inlet amount of the second-stage reverse osmosis filter 7. The device is used for enabling the secondary reverse osmosis filter 7 to completely treat all concentrated water at the outlet of the primary reverse osmosis filter 6, realizing the maximum recovery of working media and saving water resources.
The primary filtering device 3 comprises a medium filter 3-1, an activated carbon filter 3-2 and a softened water filter 3-3 which are sequentially connected in series according to the flowing direction of raw water, so that the primary filtering of the raw water is realized.
The ultrafiltration device 4 is a raw water cartridge filter, scale inhibitor feeding pipelines 11 are arranged on the raw water cartridge filter and the concentrated water cartridge filter 10, and a feeding valve 11-1 is arranged on each scale inhibitor feeding pipeline, so that scale inhibitors can be conveniently added, and the service life of the reverse osmosis membrane is prolonged.
The concentrated water pipe 6-1 of the first-stage reverse osmosis filter 6 and the concentrated water pipe 7-2 of the second-stage reverse osmosis filter 7 are respectively provided with a slow-opening valve 12 which is used as a regular flushing switch valve of the first-stage reverse osmosis filter 6 and the second-stage reverse osmosis filter 7.
The working principle of the utility model is that the concentrated water discharged in the process of making water by the first-stage reverse osmosis filter 6 is sent into the raw water tank 1 for recycling after being treated by the second-stage reverse osmosis filter 7, the concentrated water discharged by the second-stage reverse osmosis filter 7 is sent into the concentrated water tank 8, the concentrated water in the concentrated water tank 8 is connected into the flushing interface of the ultrafiltration device 4 through the flushing pump 9 for flushing of the ultrafiltration device 4 so as to ensure the operation effect of the ultrafiltration device 4, the outlet of the flushing pump 9 is connected with the water taking pipe 9-1, the water taking valve 9-2 can be opened for greening spraying or sprinkling and dust suppression of a plant area, when the water level of the concentrated water tank 8 exceeds the inlet of the overflow pipe 8-3, the redundant concentrated water is discharged into the trench, the flushing valve 8-5 and the blow-off valve 4-2 are opened when the ultrafiltration device 4 is flushed, the sewage after flushing is discharged into the trench, the first-stage reverse, the desalting rate of the produced water reaches 99.8 percent, various negative and positive ions are removed by a negative and positive electrode filter arranged in a workshop and then stored in a desalting water tank for a thermodynamic system, the second-stage reverse osmosis filter 7 adopts a converging reverse osmosis membrane, the purchase cost is low, the desalting rate of the produced water reaches more than 96 percent, and the reuse condition is met.
The foregoing description of the embodiments of the invention has been presented for purposes of illustration and not limitation, and is not intended to be exhaustive or limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the illustrated embodiments.
Claims (5)
1. The utility model provides a dense water recovery unit of reverse osmosis, includes former water tank, booster pump, the primary filter device, ultrafiltration device, high-pressure pump and the one-level reverse osmosis filter that loops through the pipeline and be connected, its characterized in that: the device also comprises a second-stage reverse osmosis filter, a concentrated water tank and a flushing pump, wherein a concentrated water pipe of the first-stage reverse osmosis filter is connected with a concentrated water security filter arranged at the inlet of the second-stage reverse osmosis filter, a water production pipe of the second-stage reverse osmosis filter is communicated with a water replenishing pipe at the top of a raw water tank and is connected below a water replenishing valve on the water replenishing pipe, a concentrated water pipe of the second-stage reverse osmosis filter is communicated with the concentrated water tank, an outlet pipe of the concentrated water tank is communicated with a flushing interface of the ultrafiltration device, a concentrated water valve and a flushing pump are sequentially arranged on the outlet pipe of the concentrated water tank, a water taking pipe is also connected at the outlet of the flushing pump, a water taking valve is arranged on the water taking pipe, an overflow pipe is also arranged on the concentrated water tank, an overflow valve is arranged on the overflow pipe, the first-stage reverse osmosis filter adopts a Dow reverse osmosis membrane, the second-stage reverse osmosis filter adopts a converging reverse osmosis membrane, and a water production valve is arranged on a water production pipe of the first-stage reverse osmosis filter.
2. A reverse osmosis concentrated water recovery device according to claim 1, wherein: the concentrated water discharge amount of the first-stage reverse osmosis filter is less than or equal to the water inlet amount of the second-stage reverse osmosis filter.
3. A reverse osmosis concentrated water recovery device according to claim 2, wherein: the primary filter device comprises a medium filter, an activated carbon filter and a softened water filter which are sequentially connected in series according to the flowing direction of raw water.
4. A reverse osmosis concentrated water recovery device according to claim 3, wherein: the ultrafiltration device is a raw water safety filter, scale inhibitor dosing pipelines are arranged on the raw water safety filter and the concentrated water safety filter, and dosing valves are arranged on the scale inhibitor dosing pipelines.
5. A reverse osmosis concentrated water recovery device according to claim 4, wherein: and the concentrate pipe of the first-stage reverse osmosis filter and the concentrate pipe of the second-stage reverse osmosis filter are both provided with a slow-opening valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020110067.1U CN211620019U (en) | 2020-01-18 | 2020-01-18 | Reverse osmosis concentrated water recovery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020110067.1U CN211620019U (en) | 2020-01-18 | 2020-01-18 | Reverse osmosis concentrated water recovery device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211620019U true CN211620019U (en) | 2020-10-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020110067.1U Expired - Fee Related CN211620019U (en) | 2020-01-18 | 2020-01-18 | Reverse osmosis concentrated water recovery device |
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| CN (1) | CN211620019U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113149137A (en) * | 2021-04-29 | 2021-07-23 | 华能国际电力股份有限公司上海石洞口第一电厂 | Reverse osmosis membrane concentrated water recovery device and concentrated water recovery system |
-
2020
- 2020-01-18 CN CN202020110067.1U patent/CN211620019U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113149137A (en) * | 2021-04-29 | 2021-07-23 | 华能国际电力股份有限公司上海石洞口第一电厂 | Reverse osmosis membrane concentrated water recovery device and concentrated water recovery system |
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| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201002 Termination date: 20220118 |
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| CF01 | Termination of patent right due to non-payment of annual fee |