CN210825550U - Device and system for preventing cleaning liquid of ultrafiltration system from entering reverse osmosis membrane system - Google Patents
Device and system for preventing cleaning liquid of ultrafiltration system from entering reverse osmosis membrane system Download PDFInfo
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- CN210825550U CN210825550U CN201921519845.6U CN201921519845U CN210825550U CN 210825550 U CN210825550 U CN 210825550U CN 201921519845 U CN201921519845 U CN 201921519845U CN 210825550 U CN210825550 U CN 210825550U
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Abstract
The device and the system are used for preventing a cleaning solution of an ultrafiltration system from entering a reverse osmosis membrane system, a water outlet of the ultrafiltration system is connected to the reverse osmosis membrane system through a first pipeline, at least one water outlet valve is arranged on the first pipeline, at least one isolation valve is further arranged on a pipeline section between the water outlet valve and the reverse osmosis system on the first pipeline, and at least one emptying valve is arranged on a second pipeline; through increasing the isolating valve, realized a water butterfly valve and isolating valve duplicate protection, through having increased an atmospheric valve at the isolating valve end, after the chemical cleaning, can arrange the blind spot washing liquid in the outlet pipe through the atmospheric valve and reveal the washing liquid, successfully solved sodium hypochlorite residual liquid to reverse osmosis membrane's irreversible damage problem.
Description
Technical Field
The disclosure relates to the technical field of seawater desalination, in particular to a device and a system for preventing a cleaning solution of an ultrafiltration system from entering a reverse osmosis membrane system.
Background
The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.
In a seawater desalination system, an ultrafiltration system needs to be chemically cleaned regularly, and most alkaline cleaning agents for chemical cleaning adopt sodium hydroxide and sodium hypochlorite. The problem that a water outlet butterfly valve of an ultrafiltration system has sealing fault risks and water outlet pipeline dead zones is found in operation practice, and when the chemical cleaning system finishes normal water production, sodium hypochlorite residual liquid enters a middle water tank along with ultrafiltration outlet water, and irreversible damage is caused to a reverse osmosis membrane. In the domestic and foreign freshwater projects, the case of the oxidation of the reverse osmosis membrane by sodium hypochlorite appears for many times, and the analysis is that the liquid medicine enters a reverse osmosis system due to the internal leakage of a water production valve after the chemical cleaning by ultrafiltration and is not detected in time, so that the oxidation of the reverse osmosis membrane in large batch is caused, the desalination rate is reduced, and great economic loss is caused.
SUMMERY OF THE UTILITY MODEL
In order to solve the defects of the prior art, the device and the system for preventing the cleaning fluid of the ultrafiltration system from entering the reverse osmosis membrane system are provided, an isolation valve is added behind a water outlet butterfly valve of the ultrafiltration device, and double protection of the water outlet butterfly valve and the isolation valve is realized; meanwhile, an emptying valve is additionally arranged at the tail end of the isolating valve, after chemical cleaning is finished, the emptying valve can be used for discharging dead-zone cleaning liquid and leakage cleaning liquid in the water outlet pipe, and the problem of irreversible damage of the ultrafiltration cleaning liquid to the reverse osmosis membrane is successfully solved.
In order to achieve the purpose, the following technical scheme is adopted in the disclosure:
in a first aspect, the present disclosure provides a device for preventing a cleaning solution of an ultrafiltration system from entering a reverse osmosis membrane system, wherein a water outlet of the ultrafiltration system is connected to the reverse osmosis membrane system through a first pipeline, the first pipeline is provided with at least one water outlet valve, and a pipeline section between the water outlet valve and the reverse osmosis system on the first pipeline is further provided with at least one isolation valve.
As some possible realization modes, the water outlet valve is a water outlet butterfly valve.
As some possible realization modes, a first water outlet is formed in the pipeline section between the adjacent water outlet valve and the isolation valve on the first pipeline, the first water outlet is connected with a water inlet of a second pipeline, and the water outlet of the second pipeline is used for discharging the ultrafiltration cleaning solution remained in the first pipeline.
As a further limitation, at least one vent valve is provided on the second conduit.
As some possible realization modes, the water purifier further comprises an intermediate water tank, the water outlet of the ultrafiltration system is connected to the water inlet of the intermediate water tank through a first pipeline, and the water inlet of the reverse osmosis membrane system is connected with the water outlet of the intermediate water tank through a second pipeline.
In a second aspect, the present disclosure provides an ultrafiltration system, wherein a device for preventing a cleaning solution of the ultrafiltration system from entering a reverse osmosis membrane system is connected to a water outlet of the ultrafiltration system.
In a third aspect, the present disclosure provides a reverse osmosis membrane system having a water inlet connected to the apparatus for preventing an ultrafiltration system cleaning fluid from entering the reverse osmosis membrane system.
In a fourth aspect, the present disclosure provides a seawater desalination system, comprising an ultrafiltration system, a reverse osmosis membrane system, and a device for preventing a cleaning solution of the ultrafiltration system from entering the reverse osmosis membrane system.
Compared with the prior art, the beneficial effect of this disclosure is:
this openly has increased an isolating valve behind ultrafiltration device play water butterfly valve, has realized a water butterfly valve and isolating valve duplicate protection.
This openly has increased an atmospheric valve at the isolating valve end, after the chemical cleaning, can arrange the blind spot washing liquid in the outlet pipe through the atmospheric valve and reveal the washing liquid, has successfully solved the irreversible damage problem of sodium hypochlorite residual liquid to reverse osmosis membrane.
The device with the isolating valve and the emptying valve is simple in structure, convenient to transform and install, low in transformation cost, reliable in performance, capable of protecting reverse osmosis membranes, capable of achieving online safe chemical cleaning of ultrafiltration devices, capable of prolonging the operation period of ultrafiltration, good in long-term operation inspection effect and high in practicability.
The device thoroughly eliminates the risk that the ultrafiltration chemical cleaning liquid medicine enters the reverse osmosis membrane, effectively improves the safety production level on site, reduces the labor intensity of workers, reduces the risk that the reverse osmosis membrane is oxidized, has good effect through operation inspection, and has higher practicability.
The device disclosed by the disclosure is simple in structure, is a safe and reliable scheme for preventing ultrafiltration chemical cleaning liquid medicine from entering a reverse osmosis membrane, and is worthy of popularization, so that the device has comprehensive popularization value in industries such as electric power, chemical engineering, metallurgy and machinery.
The device disclosed by the disclosure has no adverse effect on the original equipment and system, and the safety of the equipment and system can be improved after the device is modified.
Drawings
Fig. 1 is a schematic structural diagram of an apparatus for preventing a cleaning solution of an ultrafiltration system from entering a reverse osmosis membrane system according to embodiment 1 of the present disclosure.
1-water outlet butterfly valve; 2-an isolation valve; 3-an emptying valve; 4-a discharge valve for the produced water of the ultrafiltration system; 5-ultrafiltration back-flushing valve; 6-producing water turbidity meter; 7-differential pressure transmitter; 8-water production flow meter.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present disclosure. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
Example 1:
as shown in fig. 1, embodiment 1 of the present disclosure provides a device for preventing a cleaning solution of an ultrafiltration system from entering a reverse osmosis membrane system, a water outlet of the ultrafiltration system is connected to the reverse osmosis membrane system through a first pipeline, the first pipeline is provided with a water outlet butterfly valve 1, and a pipeline section between the water outlet butterfly valve 1 and the reverse osmosis system on the first pipeline is further provided with an isolation valve 2.
A first water outlet is formed in the pipeline section between the adjacent water outlet butterfly valve 1 and the isolating valve 2 on the first pipeline, the first water outlet is connected with a water inlet of a second pipeline, and the water outlet of the second pipeline is used for discharging the ultrafiltration cleaning liquid remained in the first pipeline.
And a water production turbidity meter 6 and a water production flowmeter 8 are sequentially arranged on the pipeline section between the adjacent water outlet butterfly valve 1 and the isolating valve 2 on the first pipeline and used for performing water production turbidity detection and flow detection of the ultrafiltration system.
And an emptying valve 3 is arranged on the second pipeline, and after the chemical cleaning is finished, the emptying valve 3 can be used for discharging the dead-zone cleaning liquid in the water outlet pipe and leaking the cleaning liquid.
The water outlet of the ultrafiltration system is connected to the water inlet of the intermediate water tank through a first pipeline, and the water inlet of the reverse osmosis membrane system is connected with the water outlet of the intermediate water tank through a second pipeline.
The ultrafiltration system also comprises an ultrafiltration system produced water discharge valve 4, an ultrafiltration backwashing valve 5 and a differential pressure transmitter 7.
The ultrafiltration system and the reverse osmosis system described in this embodiment are both mainstream purification systems in the current market, and those skilled in the art can select them at will as long as the water outlet of the ultrafiltration system is connected to the reverse osmosis system through the first pipeline.
Example 2:
the embodiment 2 of the present disclosure provides an ultrafiltration system, wherein a water outlet of the ultrafiltration system is connected with the device for preventing the cleaning solution of the ultrafiltration system from entering the reverse osmosis membrane system according to the embodiment 1 of the present disclosure.
Example 3:
the embodiment 3 of the present disclosure provides a reverse osmosis membrane system, and a water inlet of the reverse osmosis membrane system is connected with the device for preventing the cleaning solution of the ultrafiltration system from entering the reverse osmosis membrane system according to the embodiment 1 of the present disclosure.
Example 4:
the embodiment 4 of the present disclosure provides a seawater desalination system, which includes an ultrafiltration system, a reverse osmosis membrane system, and the device for preventing a cleaning solution of the ultrafiltration system from entering the reverse osmosis membrane system according to the embodiment 1 of the present disclosure.
The above description is only a preferred embodiment of the present disclosure and is not intended to limit the present disclosure, and various modifications and changes may be made to the present disclosure by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present disclosure should be included in the protection scope of the present disclosure.
Claims (8)
1. The device is characterized in that at least one water outlet valve is arranged on the first pipeline, and at least one isolation valve is further arranged on a pipeline section between the water outlet valve and the reverse osmosis system on the first pipeline.
2. The apparatus for preventing ultrafiltration system cleaning fluid from entering a reverse osmosis membrane system of claim 1, wherein the outlet valve is an outlet butterfly valve.
3. The apparatus for preventing the ultrafiltration system cleaning fluid from entering a reverse osmosis membrane system as recited in claim 1, wherein a first water outlet is formed in a pipe section between the adjacent water outlet valve and the isolation valve of the first pipe, the first water outlet is connected to a water inlet of a second pipe, and the water outlet of the second pipe is used for discharging the residual ultrafiltration cleaning fluid in the first pipe.
4. The apparatus for preventing entry of ultrafiltration system cleaning fluid into a reverse osmosis membrane system of claim 3 wherein said second conduit is provided with at least one vent valve.
5. The apparatus for preventing an ultrafiltration system cleaning fluid from entering a reverse osmosis membrane system of claim 1, further comprising an intermediate water tank, wherein the water outlet of the ultrafiltration system is connected to the water inlet of the intermediate water tank by a first pipe, and the water inlet of the reverse osmosis membrane system is connected to the water outlet of the intermediate water tank by a second pipe.
6. An ultrafiltration system, characterized in that a water outlet of the ultrafiltration system is connected with the device for preventing the cleaning solution of the ultrafiltration system from entering the reverse osmosis membrane system as claimed in any one of claims 1 to 5.
7. A reverse osmosis membrane system wherein the water inlet of the reverse osmosis membrane system is connected to the apparatus of any one of claims 1 to 5 for preventing the ultrafiltration system cleaning fluid from entering the reverse osmosis membrane system.
8. A seawater desalination system comprising an ultrafiltration system, a reverse osmosis membrane system and the apparatus of any one of claims 1 to 5 for preventing a cleaning fluid from entering the reverse osmosis membrane system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921519845.6U CN210825550U (en) | 2019-09-11 | 2019-09-11 | Device and system for preventing cleaning liquid of ultrafiltration system from entering reverse osmosis membrane system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921519845.6U CN210825550U (en) | 2019-09-11 | 2019-09-11 | Device and system for preventing cleaning liquid of ultrafiltration system from entering reverse osmosis membrane system |
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| CN210825550U true CN210825550U (en) | 2020-06-23 |
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| CN201921519845.6U Active CN210825550U (en) | 2019-09-11 | 2019-09-11 | Device and system for preventing cleaning liquid of ultrafiltration system from entering reverse osmosis membrane system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115212726A (en) * | 2022-07-22 | 2022-10-21 | 山东鲁东环保科技有限公司 | System and method for automatically analyzing and detecting internal leakage of valve of reverse osmosis system |
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2019
- 2019-09-11 CN CN201921519845.6U patent/CN210825550U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115212726A (en) * | 2022-07-22 | 2022-10-21 | 山东鲁东环保科技有限公司 | System and method for automatically analyzing and detecting internal leakage of valve of reverse osmosis system |
| CN115212726B (en) * | 2022-07-22 | 2024-04-16 | 山东鲁东环保科技有限公司 | System and method for automatically analyzing and detecting internal leakage of valve of reverse osmosis system |
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