CN207435086U - Seawater desalination system - Google Patents
Seawater desalination system Download PDFInfo
- Publication number
- CN207435086U CN207435086U CN201721532831.9U CN201721532831U CN207435086U CN 207435086 U CN207435086 U CN 207435086U CN 201721532831 U CN201721532831 U CN 201721532831U CN 207435086 U CN207435086 U CN 207435086U
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- CN
- China
- Prior art keywords
- brine
- evaporator
- seawater desalination
- desalination system
- pipeline
- 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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- 239000013535 sea water Substances 0.000 title claims abstract description 53
- 238000010612 desalination reaction Methods 0.000 title claims abstract description 33
- 239000012267 brine Substances 0.000 claims abstract description 79
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 claims abstract description 79
- 238000004140 cleaning Methods 0.000 claims abstract description 44
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 37
- 239000007788 liquid Substances 0.000 claims abstract description 33
- 230000000694 effects Effects 0.000 claims description 17
- 239000000463 material Substances 0.000 claims description 13
- 230000003134 recirculating effect Effects 0.000 claims description 10
- 230000001105 regulatory effect Effects 0.000 claims description 5
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 2
- 230000007423 decrease Effects 0.000 abstract description 4
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000011033 desalting Methods 0.000 description 3
- 230000008020 evaporation Effects 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 239000013505 freshwater Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005554 pickling Methods 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003657 drainage water Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
Landscapes
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The utility model is related to technical field of energy saving and environmental protection, disclose a kind of seawater desalination system, which includes：Vaporising device (1), including evaporator (11) and the discharge tube (12) connected respectively with evaporator and feed pipe (13)；Brine pump (2) and brine Liquid level adjusting valve (3), are successively set on along the emission path of discharge tube on discharge tube, and brine pump includes clear water inlet (21)；With circulation cleaning device (4), including wash cycles pipeline (41), one end of wash cycles pipeline is connected on the discharge tube between brine pump and brine Liquid level adjusting valve, the other end connects feed pipe, so that limitation of the inlet pressure of wash cycles pipeline from brine liquid level control valve opening, cleaning pressure and cleaning flow disclosure satisfy that requirement, the brine liquid level decrease speed of last evaporator is able to maintain that operation, it is easy to operate without multiple water filling and start and stop brine pump, wash cycles during cleaning.
Description
Technical field
The utility model is related to technical field of energy saving and environmental protection, more particularly to a kind of seawater desalination system.
Background technology
Low-temperature multiple-effect seawater desalination is that multi-effect evaporator is connected, and by pumped vacuum systems system is made to reach suitable negative pressure
State under the action of heating steam on a small quantity, makes evaporation of seawater generation be several times as much as the fresh water of steam.Obtained fresh water quality compared with
Height, slightly processing can be used to boiler of power plant make-up water, also act as production and domestic water.
Since seawater and strong brine have corrosivity, corrode especially in the pipeline of stagnation and accelerate.Therefore, low-temperature multi-effect
Sea water desalting equipment needs to set cleaning system.When equipment idle time is more than 48 small, it is necessary to seawater side and strong brine side into
Row wash cycles, until ejected wash water conductance is less than 300us/cm.After equipment is run 2 years, heat exchanger tube fouling, heat exchange efficiency reduces,
It need to carry out pickling and be realized by circulation cleaning system.In addition, when winter ocean temperature is relatively low, circulation cleaning system may be used also
It is used as brine recirculation, to improve the device thermal efficiency.
Since wash cycles require circular flow, if flow is low, cleaning performance is not achieved, and improves wash cycles stream
During amount, it is fast that existing circulation cleaning system can cause the brine liquid level of last evaporator to decline, it is impossible to maintain operation, and cleaning pressure
It is limited by brine Liquid level adjusting valve, wash cycles outlet pressure is relatively low, can not realize effective wash cycles, clear to reach
Wash effect, it has to carry out multiple water filling, start and stop brine pump to complete to clean, inconvenient and time-consuming and laborious, working strength compared with
Greatly.
Accordingly, there exist design a kind of cleaning pressure from the limitation of brine Liquid level adjusting valve and without the operation of multiple water filling
The needs of convenient seawater desalination system.
Utility model content
It is limited the purpose of this utility model is to overcome cleaning pressure existing in the prior art by brine Liquid level adjusting valve
The problem of making and needing multiple water filling and start and stop brine pump, provides a kind of seawater desalination system, the cleaning pressure of the seawater desalination system
Power from brine Liquid level adjusting valve limitation and without multiple water filling, it is easy to operate.
To achieve these goals, on the one hand the utility model provides a kind of seawater desalination system, the sea water desalination system
System includes：Vaporising device, the vaporising device include evaporator and the discharge tube that is connected respectively with the evaporator and into
Pipe material；Brine pump and brine Liquid level adjusting valve, the brine pump and the brine Liquid level adjusting valve are along the discharge tube
Emission path is successively set on the discharge tube, and the brine pump includes clear water inlet；And circulation cleaning device, it is described
Circulation cleaning device includes wash cycles pipeline, and one end of the wash cycles pipeline is connected to positioned at the brine pump and described
On the discharge tube between brine Liquid level adjusting valve, the other end connects the feed pipe.
Preferably, the circulation cleaning device includes the wash cycles regulating valve being mounted on the wash cycles pipeline.
Preferably, the vaporising device includes evaporator described in multiple-effect and the U-tube for connecting the adjacent base of evaporator
Road, the discharge tube are connected to evaporator described in end effect.
Preferably, the feed pipe includes multiple laterals and main pipeline, and one end of multiple laterals is distinguished
It being connected correspondingly with evaporator described in multiple-effect, the other end of multiple laterals is connected with the main pipeline,
The wash cycles pipeline is connected with the main pipeline.
Preferably, the seawater desalination system includes being mounted on the main pipeline and positioned at the wash cycles pipeline
With the material water pump of the communicating position upstream of the main pipeline and/or material Water flow adjusting valve.
Preferably, the seawater desalination system include be mounted on the feed pipe on condenser, the condenser with
Evaporator is connected described in end effect.
Preferably, one end of the lateral is stretched at the top of the evaporator in the evaporator, and described point
The end of branch pipe(tube) is provided with nozzle.
Preferably, it is provided in the evaporator on heat exchanger tube and/or the feed pipe and is provided with flowmeter.
Preferably, the seawater desalination system includes recirculating system and the brine is arranged on the discharge tube
The brine pump discharge shut-off valve in Liquid level adjusting valve downstream, the recirculating system include recirculation conduit, the recirculation conduit
One end be connected on the discharge tube between the brine pump discharge shut-off valve and the brine Liquid level adjusting valve,
The other end is connected in the U-shaped pipe being connected with evaporator described in end effect.
Preferably, the recirculating system includes the brine recirculation valve being arranged on the recirculation conduit.
In the above-mentioned technical solutions, since one end of the wash cycles pipeline of circulation cleaning device is connected to positioned at the salt
On the discharge tube between water pump and the brine Liquid level adjusting valve, the inlet pressure of wash cycles pipeline is no longer by brine
The limitation of Liquid level adjusting valve aperture, cleaning pressure disclosure satisfy that requirement, and cleaning flow can reach rated value, enhance clear
Effect is washed, slows down the corrosion of seawater and strong brine to pipeline, extends service life and the cleaning frequency of equipment, and end effect
The brine liquid level decrease speed of evaporator is able to maintain that operation, in cleaning without multiple water filling and start and stop brine pump, reduces
Produce the power consumption of water consumption and brine pump, wash cycles are easy to operate, time saving and energy saving, greatly reduce working strength and cleaning into
This.
Description of the drawings
Fig. 1 is the partial structural diagram of the seawater desalination system of the utility model preferred embodiment.
Reference sign
1 vaporising device, 11 evaporator
111 heat exchanger tube, 12 discharge tube
13 feed pipe, 131 lateral
132 main pipeline, 14 U-shaped pipe
2 brine pump, 21 clear water inlet
3 brine Liquid level adjusting valve, 4 circulation cleaning device
41 wash cycles pipeline, 42 wash cycles regulating valve
5 material water pump, 6 material Water flow adjusting valve
7 condenser, 8 recirculating system
81 recirculation conduit, 82 brine recirculation valve
9 brine pump discharge shut-off valve H flowmeters
Specific embodiment
Specific embodiment of the present utility model is described in detail below in conjunction with attached drawing.It should be appreciated that herein
Described specific embodiment is only used for describing and explaining the present invention, and is not intended to limit the utility model.
In the utility model in the case where not making explanation on the contrary, the noun of locality such as " upper and lower, left and right " used is usual
Refer to the upper and lower, left and right shown in refer to the attached drawing；" inside and outside " refers to the inside and outside of the profile compared with each component in itself.
On the one hand the utility model provides a kind of seawater desalination system, the seawater desalination system includes vaporising device 1, salt
Water pump 2, brine Liquid level adjusting valve 3 and circulation cleaning device 4, the vaporising device 1 include evaporator 11 and respectively with it is described
The discharge tube 12 and feed pipe 13, the brine pump 2 and the brine Liquid level adjusting valve 3 that evaporator 11 connects are along the row
The emission path for putting pipeline 12 is successively set on the discharge tube 12, and the brine pump 2 includes clear water inlet 21, described
Circulation cleaning device 4 includes wash cycles pipeline 41, and one end of the wash cycles pipeline 41 is connected to positioned at the brine pump 2
On the discharge tube 12 between the brine Liquid level adjusting valve 3, the other end connects the feed pipe 13.
In the above-mentioned technical solutions, as shown in Figure 1, since one end of the wash cycles pipeline 41 of circulation cleaning device 4 connects
It is connected on the discharge tube 12 between the brine pump 2 and the brine Liquid level adjusting valve 3, so that wash cycles
The inlet pressure of pipeline 41 is from the limitation of 3 aperture of brine Liquid level adjusting valve, and cleaning pressure disclosure satisfy that requirement, cleaning stream
Amount can reach rated value, enhance cleaning performance, slow down the corrosion of seawater and strong brine to pipeline, extend making for equipment
Operation is able to maintain that with the brine liquid level decrease speed in service life and cleaning frequency, and last evaporator 11, it need not in cleaning
Multiple water filling and start and stop brine pump 2, reduce the power consumption of production water consumption and brine pump 2, wash cycles are easy to operate, drop significantly
Low working strength and cleaning cost.
In order to facilitate the flow and flow rate in control loop Cleaning pipes 41, it is preferable that the circulation cleaning device 4 includes
Wash cycles regulating valve 42 on the wash cycles pipeline 41.
In order to which steam thermal energy is made repeatedly to be utilized, so as to improve heat utilization rate, it is preferable that the vaporising device 1 wraps
It includes evaporator 11 described in multiple-effect and is connected to the U-shaped pipe 14 of adjacent 11 bottom of the evaporator, the discharge tube 12 is connected
Evaporator 11 described in end effect.
Specifically, by taking ten effect evaporators 11 as an example, when needing to the seawater side of low-temperature multiple-effect sea water desalting equipment and brine
When side is cleaned, multi-effect evaporator 11 is emptied first, closes sewage door after emptying, close brine Liquid level adjusting valve
3, the production water of high-quality is injected (for example, DD by the clear water inlet 21 of brine pump 2<5us/cm, wherein " DD " is in water quality
It is the meaning of discharge in insulation detection method in testing, the pronunciation of us/cm：Micro-Siemens/every square centimeter, it is the unit of electrical conductivity,
Electrical conductivity and resistivity are reciprocal each other, and 5us/cm belongs to pure water rank (2-10us/cm)), and from wash cycles pipeline 41
Evaporator 11 is flowed to, when 11 water level of last evaporator is to desired height, such as 1500mm, start brine pump 2, according to cleaning
The requirement of flow adjusts wash cycles flow by (brine) wash cycles (flow) regulating valve 42, and each effect is made to meet cleaning stream
Amount requirement, for example, ten effect material water total flows are in 2700-3000t/h；One to quadruple effect cleaning flow 400t/h, and five to seven imitate
Clean flow 380t/h, eight to ten effect cleaning flow 110t/h.According to the brine liquid level situation of change of last evaporator 11, slowly
It adjusts into effect flow, until reaching requirements, establishes clean cycle.
In order to which production water is enable to enter multi-effect evaporator 11 as early as possible, it is preferable that the feed pipe 13 includes multiple points
Branch pipe(tube) 131 and main pipeline 132, one end of multiple laterals 131 respectively with evaporator described in multiple-effect 11 correspondingly
Connection, the other end of multiple laterals 131 is connected with the main pipeline 132, the wash cycles pipeline 41 with
The main pipeline 132 connects.For example, the other end of multiple laterals 131 can directly be connected with main pipeline 132, certainly
Can also be connected again with main pipeline 132 after the lateral 131 of adjacent vaporizers 11 first merges into a pipeline, specifically may be used
It is flexibly selected according to installation space and need of work.
Seawater to be diluted enters evaporator and controls the inlet and flow velocity of seawater for convenience, it is preferable that the sea
Water desalination system includes being mounted on the main pipeline 132 and positioned at the wash cycles pipeline 41 and the main pipeline
The material water pump 5 of 132 communicating position upstream and/or material Water flow adjusting valve 6.Here material water pump 5 and/or material water
" material " in flow control valve refers to seawater to be diluted.
In order to be heated using the steam in evaporator 11 to seawater to be diluted, it is preferable that the sea water desalination system
System includes the condenser 7 being mounted on the feed pipe 13, and the condenser 7 is connected with evaporator described in end effect 11.
And in order to which the seawater for making temperature relatively low can be uniformly distributed in evaporator 11, it is preferable that the lateral
131 one end is stretched into from the top of the evaporator 11 in the evaporator 11, and the end of the lateral 131 is provided with
Nozzle.That is nozzle plays an important role of drainage, and seawater can be made equably to be sprayed at the surface for the heat exchanger tube being explained below,
The contact area of seawater and heat exchanger tube is increased, seawater can be enable to be heated as early as possible, to improve evaporation rate.
Wherein, for the seawater in heating evaporation device 11, it is preferable that be provided with heat exchanger tube 111 in the evaporator 11.And
And after usage time is longer, 111 outside fouling of heat exchanger tube can be carried out when heat exchange efficiency being caused to reduce using circulation cleaning device
Pickling, cleaning process to above-mentioned similar to the seawater side of sea water desalting equipment and brine side, simply clean fluid by water become in order to
Acid.In addition, detecting the seawater flow and flow velocity in feed pipe for convenience, flowmeter H is provided on the feed pipe 13.
In order to facilitate repairing or replace parts, it is preferable that the seawater desalination system includes recirculating system 8 and in institute
State the brine pump discharge shut-off valve 9 that 3 downstream of brine Liquid level adjusting valve is arranged on discharge tube 12, the recirculating system
8 include recirculation conduit 81, and one end of the recirculation conduit 81 is connected to positioned at the brine pump discharge shut-off valve 9 and described
On the discharge tube 12 between brine Liquid level adjusting valve 3, the other end is connected to the institute being connected with evaporator described in end effect 11
It states in U-shaped pipe 14.It, can so when the pipeline or device in 9 downstream of brine pump discharge shut-off valve occur damaging or need repairing
Brine pump discharge shut-off valve 9 is closed, circulation loop is formed by recirculating system 8 and remaining pipeline, can be tieed up in a short time
Holding equipment is run.
Also, the opening and closing of recirculation conduit 81 is controlled for convenience, improves usage safety performance, it is preferable that described to follow again
Loop system 8 includes the brine recirculation valve 82 being arranged on the recirculation conduit 81.
The preferred embodiment of the utility model, still, the utility model and unlimited are described in detail above in association with attached drawing
In this.In the range of the technology design of the utility model, a variety of simple variants can be carried out to the technical solution of the utility model,
It is combined in any suitable manner including each particular technique feature.In order to avoid unnecessary repetition, the utility model
Various combinations of possible ways are no longer separately illustrated.But these simple variants and combination should equally be considered as the utility model institute
Disclosure belongs to the scope of protection of the utility model.
Claims (10)
1. a kind of seawater desalination system, which is characterized in that the seawater desalination system includes：
Vaporising device (1), the vaporising device (1) include evaporator (11) and the row connected respectively with the evaporator (11)
Put pipeline (12) and feed pipe (13)；
Brine pump (2) and brine Liquid level adjusting valve (3), the brine pump (2) and the brine Liquid level adjusting valve (3) are along the row
The emission path for putting pipeline (12) is successively set on the discharge tube (12), and the brine pump (2) includes clear water inlet
(21)；With
Circulation cleaning device (4), the circulation cleaning device (4) include wash cycles pipeline (41), the wash cycles pipeline
(41) one end is connected to the discharge tube between the brine pump (2) and the brine Liquid level adjusting valve (3)
(12) on, the other end connects the feed pipe (13).
2. seawater desalination system according to claim 1, which is characterized in that the circulation cleaning device (4) includes installation
Wash cycles regulating valve (42) on the wash cycles pipeline (41).
3. seawater desalination system according to claim 2, which is characterized in that the vaporising device (1) is included described in multiple-effect
Evaporator (11) and the U-shaped pipe (14) for connecting the adjacent evaporator (11) bottom, the discharge tube (12) are connected to end
Imitate the evaporator (11).
4. seawater desalination system according to claim 3, which is characterized in that the feed pipe (13) includes multiple branches
Pipeline (131) and main pipeline (132), one end of multiple laterals (131) respectively with evaporator described in multiple-effect (11) one by one
Correspondingly connected, the other end of multiple laterals (131) is connected with the main pipeline (132), the circulation cleaning
Pipeline (41) is washed to be connected with the main pipeline (132).
5. seawater desalination system according to claim 4, which is characterized in that the seawater desalination system includes being mounted on institute
It states on main pipeline (132) and positioned at the wash cycles pipeline (41) and the communicating position upstream of the main pipeline (132)
Material water pump (5) and/or material Water flow adjusting valve (6).
6. seawater desalination system according to claim 5, which is characterized in that the seawater desalination system includes being mounted on institute
The condenser (7) on feed pipe (13) is stated, the condenser (7) is connected with evaporator described in end effect (11).
7. seawater desalination system according to claim 4, which is characterized in that one end of the lateral (131) is from institute
It states and is stretched at the top of evaporator (11) in the evaporator (11), and the end of the lateral (131) is provided with nozzle.
8. according to the seawater desalination system any one of claim 1-7, which is characterized in that set in the evaporator (11)
It is equipped on heat exchanger tube (111) and/or the feed pipe (13) and is provided with flowmeter (H).
9. according to the seawater desalination system any one of claim 3-7, which is characterized in that the seawater desalination system bag
It includes recirculating system (8) and the brine pump in brine Liquid level adjusting valve (3) downstream is arranged on the discharge tube (12)
Shut-off valve (9) is exported, the recirculating system (8) includes recirculation conduit (81), and one end of the recirculation conduit (81) connects
The discharge tube (12) being connected between the brine pump discharge shut-off valve (9) and the brine Liquid level adjusting valve (3)
On, the other end is connected in the U-shaped pipe (14) being connected with evaporator described in end effect (11).
10. seawater desalination system according to claim 9, which is characterized in that the recirculating system (8) includes being arranged on
Brine recirculation valve (82) on the recirculation conduit (81).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721532831.9U CN207435086U (en) | 2017-11-16 | 2017-11-16 | Seawater desalination system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721532831.9U CN207435086U (en) | 2017-11-16 | 2017-11-16 | Seawater desalination system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207435086U true CN207435086U (en) | 2018-06-01 |
Family
ID=62289752
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721532831.9U Active CN207435086U (en) | 2017-11-16 | 2017-11-16 | Seawater desalination system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207435086U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110550679A (en) * | 2019-09-02 | 2019-12-10 | 孙保兴 | Sea water desalting device |
| CN116081738A (en) * | 2023-02-28 | 2023-05-09 | 西安热工研究院有限公司 | Shutdown maintenance system and maintenance method for sea water desalination device |
-
2017
- 2017-11-16 CN CN201721532831.9U patent/CN207435086U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110550679A (en) * | 2019-09-02 | 2019-12-10 | 孙保兴 | Sea water desalting device |
| CN116081738A (en) * | 2023-02-28 | 2023-05-09 | 西安热工研究院有限公司 | Shutdown maintenance system and maintenance method for sea water desalination device |
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