CN207493512U - A kind of nuclear power plant's first-stage reverse osmosis low-pressure washing system - Google Patents
A kind of nuclear power plant's first-stage reverse osmosis low-pressure washing system Download PDFInfo
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- CN207493512U CN207493512U CN201721211685.XU CN201721211685U CN207493512U CN 207493512 U CN207493512 U CN 207493512U CN 201721211685 U CN201721211685 U CN 201721211685U CN 207493512 U CN207493512 U CN 207493512U
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- reverse osmosis
- pump
- stage reverse
- flushing
- bypass
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Abstract
The utility model is related to a kind of nuclear power plant's first-stage reverse osmosis low-pressure washing system, including sequentially connected seawater membrane reverse osmosis cartridge filter, seawater membrane reverse osmosis pump, energy recycle device, first-stage reverse osmosis device and level-one fresh-water tank；The water inlet of the seawater membrane reverse osmosis cartridge filter is connected with first-stage reverse osmosis water inlet；First-stage reverse osmosis flushing pump is further included, the first-stage reverse osmosis production water of the level-one fresh-water tank is pumped through the first-stage reverse osmosis flushing pump to the seawater membrane reverse osmosis cartridge filter；Further include flushing bypass；The flushing bypass is parallel to the seawater membrane reverse osmosis pump both ends；Described rinse in bypass is provided with bypass control valve.The utility model must overcome the resistance problem of high-pressure pump, and safeguard and ensured the performance of high-pressure pump, while also reduce the setting of pipeline by bypass control valve when solving system low-voltage flushing.This device increases the safety in operation and stability of system while counter-infiltration system economy is improved.
Description
Technical field
The utility model belongs to nuclear power plant's field of seawater desalination, and in particular to a kind of first-stage reverse osmosis low-pressure washing device.
Background technology
When counter-infiltration system starts, seawater membrane reverse osmosis cartridge filter is generally passed through using first-stage reverse osmosis flushing pump
Exhaust is rinsed to reverse osmosis module.When reverse osmosis membrane system is stopped transport, it is necessary to entire seawater membranous system is rinsed, to replace pressure
The concentrated water of high salinity in force container and reverse-osmosis membrane element prevents the pollutant of dense water side deposition from causing dirt to reverse osmosis membrane
Dye or damage.In addition, needing to start reverse osmosis rinse-system after chemical cleaning, liquid is washed down, cleaning liquid is avoided to influence production water water
Matter.
In the prior art, water (level-one fresh water is generally produced using first-stage reverse osmosis when being rinsed to above-mentioned counter-infiltration system
Water source in case) reverse osmosis equipment upstream is connected by first-stage reverse osmosis flush water pump.
But in recent years, due to requirement energy-efficient to construction project, the multistage high-pressure pump series of the high energy efficiency of selection is more,
The lift of first-stage reverse osmosis flush water pump used during reverse osmosis low-pressure washing is not enough to overcome multistage high-pressure pump
Resistance, it is impossible to be rinsed to follow-up reverse osmosis membrane assembly；Or high-pressure pump occur causes when passively running system hydraulic pressure unstable
Phenomena such as, can all have an adverse effect in this way to the runnability of high-pressure pump.
For such situation, common practices is to take that two sections of measures being rinsed is divided to (to be segmentation punching as shown in Figure 2
The example washed), sectional flushing not only increases the setting of pipe-line system and drainage system, also adds flushing process control
Complexity.
Utility model content
For defect in the prior art, it is low that the purpose of this utility model is to provide a kind of nuclear power plant's first-stage reverse osmosis
Rinse-system is pressed, solves that the resistance problem of high-pressure pump must be overcome during system flush, and safeguard and ensured the performance of high-pressure pump.
The technical solution of the utility model is as follows：
A kind of nuclear power plant's first-stage reverse osmosis low-pressure washing system is ensured public security including sequentially connected seawater membrane reverse osmosis and is filtered
Device, seawater membrane reverse osmosis pump, energy recycle device, first-stage reverse osmosis device and level-one fresh-water tank；The seawater membrane reverse osmosis is protected
The water inlet and first-stage reverse osmosis water inlet for pacifying filter connect；First-stage reverse osmosis flushing pump is further included, the level-one fresh-water tank
First-stage reverse osmosis production water is pumped through the first-stage reverse osmosis flushing pump to the seawater membrane reverse osmosis cartridge filter；Further include flushing
Bypass；The flushing bypass is parallel to the seawater membrane reverse osmosis pump both ends；Described rinse in bypass is provided with bypass control valve.
Further, nuclear power plant's first-stage reverse osmosis low-pressure washing system, the bypass control valve are pneumatic control valve.
Further, nuclear power plant's first-stage reverse osmosis low-pressure washing system, the seawater membrane reverse osmosis pump is high-pressure pump.
Further, nuclear power plant's first-stage reverse osmosis low-pressure washing system, the first-stage reverse osmosis flushing pump are low pressure
Pump.
The beneficial effects of the utility model are as follows：
The utility model must overcome the resistance problem of high-pressure pump by bypass control valve when solving system low-voltage flushing,
And safeguard and ensured the performance of high-pressure pump, while also reduce the setting of pipeline.This device is improving counter-infiltration system economy
While property, the safety in operation and stability of system are increased.
Description of the drawings
Fig. 1 is the structure diagram of the utility model nuclear power plant first-stage reverse osmosis low-pressure washing system.
Fig. 2 is a kind of structure diagram of sectional flushing system.
In above-mentioned attached drawing, 1, first-stage reverse osmosis flushing pump；2nd, seawater membrane reverse osmosis cartridge filter；3rd, seawater membrane reverse osmosis
Pump；4th, energy recycle device；5th, first-stage reverse osmosis device；6th, level-one fresh-water tank；7th, bypass control valve.
Specific embodiment
The utility model is described in detail with reference to the accompanying drawings and examples.
As shown in Figure 1, the utility model provides a kind of nuclear power plant's first-stage reverse osmosis low-pressure washing system, including connecting successively
Seawater membrane reverse osmosis cartridge filter 2, seawater membrane reverse osmosis pump 3, energy recycle device 4, the first-stage reverse osmosis device 5 and one connect
Grade fresh-water tank 6；The water inlet of the seawater membrane reverse osmosis cartridge filter 2 is connected with first-stage reverse osmosis water inlet；Further include level-one
Reverse osmosis flushing pump 1, the first-stage reverse osmosis production water of the level-one fresh-water tank 6, pumps through the first-stage reverse osmosis flushing pump 1 to described
Seawater membrane reverse osmosis cartridge filter 2；Further include flushing bypass；The flushing bypass is parallel to the seawater membrane reverse osmosis pump 3
Both ends；Described rinse in bypass is provided with bypass control valve 7.
In the present embodiment, the bypass control valve 7 is pneumatic control valve, and the seawater membrane reverse osmosis pump 3 is high-pressure pump,
The first-stage reverse osmosis flushing pump 1 is low-lift pump.
In the present embodiment, the flushing bypass is arranged between cartridge filter and energy recycle device 4, with seawater film
Reverse osmosis high-pressure parallel connection of pumps.When counter-infiltration system needs to carry out low-pressure washing, system is beaten by pneumatic control bypass control valve 7
It opens, first-stage reverse osmosis production water is promoted through first-stage reverse osmosis flushing pump 1, and low-pressure washing is carried out to first-stage reverse osmosis device 5 by bypassing.
When system is rinsed due to long-time is shut down, bypass control valve 7 is closed, starts low-pressure washing pump and high-pressure pump to reverse osmosis
Membrane module is rinsed.
Which solves the resistance problem for overcoming high-pressure pump, while avoid because will appear water when high-pressure pump is passively run
The performance of high-pressure pump is safeguarded and ensured to phenomena such as pressure is unstable, is bypassed by setting, and increases system operation safety and stabilization
Property, system investments are saved, reduce operation energy consumption.
Obviously, those skilled in the art can carry out the utility model various modification and variations without departing from this practicality
Novel spirit and scope.In this way, if the utility model claims are belonged to these modifications and variations of the present invention
And its within the scope of equivalent technology, then the utility model is also intended to include these modifications and variations.
Claims (4)
1. a kind of nuclear power plant's first-stage reverse osmosis low-pressure washing system, it is characterised in that：Including sequentially connected seawater membrane reverse osmosis
Cartridge filter (2), seawater membrane reverse osmosis pump (3), energy recycle device (4), first-stage reverse osmosis device (5) and level-one fresh-water tank
(6)；The water inlet of the seawater membrane reverse osmosis cartridge filter (2) is connected with first-stage reverse osmosis water inlet；Further include level-one reverse osmosis
Saturating flushing pump (1), the first-stage reverse osmosis production water of the level-one fresh-water tank (6) are pumped through the first-stage reverse osmosis flushing pump (1) to institute
State seawater membrane reverse osmosis cartridge filter (2)；Further include flushing bypass；The flushing bypass is parallel to the seawater membrane reverse osmosis
Pump (3) both ends；Described rinse in bypass is provided with bypass control valve (7).
2. nuclear power plant's first-stage reverse osmosis low-pressure washing system as described in claim 1, it is characterised in that：The bypass control valve
(7) it is pneumatic control valve.
3. nuclear power plant's first-stage reverse osmosis low-pressure washing system as described in claim 1, it is characterised in that：The seawater membrane reverse osmosis
It is high-pressure pump to pump (3).
4. nuclear power plant's first-stage reverse osmosis low-pressure washing system as described in claim 1-3 is any, it is characterised in that：The level-one is anti-
It is low-lift pump to permeate flushing pump (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721211685.XU CN207493512U (en) | 2017-09-21 | 2017-09-21 | A kind of nuclear power plant's first-stage reverse osmosis low-pressure washing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721211685.XU CN207493512U (en) | 2017-09-21 | 2017-09-21 | A kind of nuclear power plant's first-stage reverse osmosis low-pressure washing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207493512U true CN207493512U (en) | 2018-06-15 |
Family
ID=62498939
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721211685.XU Active CN207493512U (en) | 2017-09-21 | 2017-09-21 | A kind of nuclear power plant's first-stage reverse osmosis low-pressure washing system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109850999A (en) * | 2019-04-23 | 2019-06-07 | 福建普泰科水处理科技有限公司 | A kind of purging method for seawater desalination system |
-
2017
- 2017-09-21 CN CN201721211685.XU patent/CN207493512U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109850999A (en) * | 2019-04-23 | 2019-06-07 | 福建普泰科水处理科技有限公司 | A kind of purging method for seawater desalination system |
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