CN110436655A - Reverse osmosis seawater desalination system - Google Patents
Reverse osmosis seawater desalination system Download PDFInfo
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- CN110436655A CN110436655A CN201910654944.3A CN201910654944A CN110436655A CN 110436655 A CN110436655 A CN 110436655A CN 201910654944 A CN201910654944 A CN 201910654944A CN 110436655 A CN110436655 A CN 110436655A
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- pump
- reverse osmosis
- low pressure
- turbine
- influent stream
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- 238000001223 reverse osmosis Methods 0.000 title claims abstract description 61
- 239000013535 sea water Substances 0.000 title claims abstract description 39
- 238000010612 desalination reaction Methods 0.000 title claims abstract description 27
- 239000013505 freshwater Substances 0.000 claims abstract description 34
- 239000012528 membrane Substances 0.000 claims abstract description 27
- 230000001105 regulatory effect Effects 0.000 claims abstract description 11
- 238000005461 lubrication Methods 0.000 claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 24
- 238000011001 backwashing Methods 0.000 claims description 10
- 230000000712 assembly Effects 0.000 claims description 8
- 238000000429 assembly Methods 0.000 claims description 8
- 238000001125 extrusion Methods 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims description 3
- 238000005086 pumping Methods 0.000 claims 1
- 238000011084 recovery Methods 0.000 abstract description 5
- 238000013461 design Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 15
- 239000007788 liquid Substances 0.000 description 9
- 238000010586 diagram Methods 0.000 description 5
- 239000000314 lubricant Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000011033 desalting Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000009738 saturating Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 238000004064 recycling Methods 0.000 description 3
- 238000005070 sampling Methods 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 2
- 239000003651 drinking water Substances 0.000 description 2
- 235000020188 drinking water Nutrition 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- 238000003801 milling Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003204 osmotic effect Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/08—Seawater, e.g. for desalination
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/002—Construction details of the apparatus
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/14—Maintenance of water treatment installations
-
- 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
- Y02A20/131—Reverse-osmosis
Abstract
The present invention relates to a kind of reverse osmosis seawater desalination systems, it includes pretreatment unit, reverse osmosis units and fresh-water tank, reverse osmosis units include reverse osmosis membrane assembly, the turbine booster pump being connected between pretreatment unit and reverse osmosis membrane assembly, three-way solenoid valve is serially connected between dilute side and fresh-water tank, another branch of three-way solenoid valve is communicated with discharge outlet, fresh-water tank then passes through pipeline and connect with user, go out between runner to be connected to low pressure in high pressure influent stream road and be equipped with bypass, is equipped with the regulating valve to adjust bypass flow in bypass；And the lubrication piping communicated with thrust bearing is configured on the pump housing, and the connecting pipe being communicated between lubrication piping and low pressure influent stream road.This reverse osmosis seawater desalination system is adjusted the flow in high pressure influent stream road, so that the flow in high pressure influent stream road remains the optimum flow under design conditions, and then can effectively ensure that the working efficiency of turbine booster pump, so that the recovery efficiency of remaining energy amount can be improved.
Description
Technical field
The present invention relates to field of sea water desalting technology, in particular to a kind of reverse osmosis seawater desalination system.
Background technique
Reverse osmosis seawater desalting process, which is mainly seawater, is forced into the osmotic pressure greater than reverse osmosis membrane by high-pressure pump, and seawater is saturating
It crosses reverse osmosis membrane and forms fresh water, salt is blocked on concentrated water side and is discharged with concentrated water, so that seawater be made to obtain desalting.Reverse osmosis sea
For the operating pressure of water desalination system generally in 5-6MPa, the concentrated seawater pressure discharged from membrane module is still up to 4.8-5.8MPa,
If the rate of recovery according to usual 40% calculates, there are also 60% feed pressure energy in concentrated seawater, have huge recycling valence
Value and meaning.
Traditional desalination plant noenergy recyclable device, and reverse osmosis high-pressure pump driving motor configuration power is big, leads
Enable consumption is universal excessively high, and high pressure sea water forms fresh water, quite a few high pressure through the low-pressure side of reverse osmosis membrane assembly to film
Concentrated water carries out pressure release discharge by pressure reducing valve, and the overbottom pressure energy for causing high pressure concentrated water to have is not by effective recycling.Currently,
In order to solve this problem, some recycles overbottom pressure ability using turbine booster pump, but because existing turbine boosting pump structure is set
It counts unreasonable, causes recovery efficiency lower.
Summary of the invention
In view of this, the present invention is directed to propose a kind of reverse osmosis seawater desalination system, is imitated with improving the recycling of overbottom pressure energy
Rate.
In order to achieve the above objectives, the technical scheme of the present invention is realized as follows:
A kind of reverse osmosis seawater desalination system, including pretreatment unit, reverse osmosis units and fresh-water tank, the reverse osmosis
Saturating unit includes the reverse osmosis membrane assembly with concentrated water side and dilute side, and is connected to be set forth in pretreatment unit and described anti-
Turbine booster pump between permeable membrane element is serially connected with three-way solenoid valve between Yu Suoshu dilute side and the fresh-water tank, described
Another branch of three-way solenoid valve is communicated with discharge outlet；
And the turbine booster pump includes the pump housing with turbine chamber and pump chamber, and intracavitary equipped with turbine in the turbine
Impeller, and it is connected to the thrust bearing of the turbo wheel side, it is equipped in Yu Suoshu pump chamber coaxial with the turbo wheel
Connected impeller of pump, and flowed out in being configured with the high pressure influent stream road being connected to respectively with the turbine chamber and low pressure on the pump housing
Road, and the low pressure influent stream road and high extrusion runner that are connected to respectively with the pump chamber, and the high extrusion runner and the high pressure
Influent stream road is connected with the concentrated water side, and low pressure influent stream road is connected with the pretreatment unit, and the low pressure goes out runner
It is communicated with the discharge outlet；
And the high pressure influent stream road Yu Suoshu goes out between runner to be connected to the low pressure equipped with bypass, and in the high pressure influent stream
It is serially connected with the flowmeter of detection high pressure influent stream road flow on road, is equipped in the bypass to adjust the bypass flow
Regulating valve；And in being configured with the lubrication piping communicated with the thrust bearing on the pump housing, and it is communicated in the lubrication
Connecting pipe between pipeline and low pressure influent stream road.
Further, conductivity sensor is equipped between Yu Suoshu dilute side and the three-way solenoid valve, and in the electricity
Flow sensor is serially connected between magnetic triple valve and the fresh-water tank.
Further, the pretreatment unit includes sequentially connected charging pump, filter, low-pressure sensor and height
Press pump, and the outlet of the high-pressure pump is connected with low pressure influent stream road.
Further, the filter includes the μ accurate filter and μ precision mistake being sequentially connected in series in the charging pump downstream
Filter.
Further, the outlet of Yu Suoshu fresh-water tank is serially connected with triple valve, and the one branch road of Yu Suoshu triple valve concatenates
There is backwashing pump, and the outlet of the backwashing pump is set between the filter assemblies and the low-pressure sensor.
Further, along the high pressure influent stream road fluid flow direction, the end in Yu Suoshu high pressure influent stream road is fixed with just
For the nozzle of turbo wheel tangential direction setting.
Further, the nozzle includes being connected with high pressure influent stream road and along away from high pressure influent stream road side
To the linkage section of section gradually small setting, and it is fixed on the jet segment of the linkage section free end, and the jet segment free end
End face be configured to arcwall face.
Further, the pump housing includes pump housing main body, positioned opposite in the intracorporal turbine spiral case of the pump housing master and pump
Spiral case is respectively fixedly connected in the turbine end cap and pump end cap at pump housing main body both ends, and the connected and edge with the pump housing main body
The low pressure inlet pipe for radially extending setting and low pressure outlet pipe of the pump housing main body, low pressure influent stream road be configured in the low pressure into
Guan Shang, the low pressure go out flow passage configuration in the low pressure outlet pipe, and the turbine chamber is configured on the turbine spiral case, the pump
Chamber is configured on the pump spiral case.
Further, along the projecting direction of the pump housing main body axis, the low pressure inlet pipe and low pressure outlet pipe overlapping
Setting.
Further, the turbine spiral case is made of the left turbine spiral case being connected together and right turbine spiral case, the pump
Spiral case is made of the left pump spiral case being connected together and right pump spiral case.
Compared with the existing technology, present invention has the advantage that
(1) reverse osmosis seawater desalination system of the present invention is bypassed and is being bypassed by being arranged on turbine booster pump
Upper setting regulating valve can adjust the aperture of regulating valve based on the real-time monitoring effect of flowmeter, thus adjustable high pressure influent stream
Flow in road so that the flow in high pressure influent stream road remains the optimum flow under design conditions, and then can effectively ensure that
The working efficiency of flat booster pump, so that the recovery efficiency of remaining energy amount can be improved；In addition, by making low pressure influent stream road and thrust axis
It holds and is connected, and thrust bearing is lubricated using the low pressure liquid in pump side low pressure influent stream road, can not only have preferable
Lubricant effect, while lubricant medium impact caused by turbo wheel can also be reduced, so as to extend the use longevity of turbo wheel
Life, to can effectively ensure that the normal work of reverse osmosis seawater desalination system.
(2) conductivity sensor is set, the conductivity that reverse osmosis membrane assembly produces water can be effectively monitored, to can avoid conductance
The higher water mixing of rate enters in fresh-water tank.
(3) filtering accuracy of raw water can be effectively improved by the way that two-stage filter is arranged.
(4) by setting backwashing pump, it can guarantee that internal system is full of fresh water when timing rinses, so as to effective
Protect system element and reverse osmosis membrane assembly.
(5) by setting nozzle, highly pressurised liquid can be improved to the impact effect of turbo wheel, so as to increase turbo wheel
Revolving speed, and then pump impeller can be improved to the supercharging effect of low pressure liquid.
(6) by making low pressure inlet pipe and low pressure outlet pipe be set to pump housing main body radially, and by turbine end cap and pump
End cap is respectively fixedly connected in the both ends of pump housing main body, compared to the prior art, can be overhauled in disassembly turbine end cap or pump end cap
When, detaching pipelines are not necessarily to, it is simple to operate, and repair and maintenance time and cost can be greatly lowered
(7) it is overlapped along the projecting direction of pump housing main body axis, low pressure inlet pipe and low pressure outlet pipe, turbine not only can be improved
The overall aesthetics of booster pump, while the integral layout of turbine booster pump can also be convenient for.
(8) turbine spiral case is made of left turbine spiral case and right turbine spiral case, compared to the prior art in integral structure,
It easy to process can manufacture, while the processing of turbine spiral case upper runner can also be convenient for.
Detailed description of the invention
The attached drawing for constituting a part of the invention is used to provide further understanding of the present invention, schematic reality of the invention
It applies example and its explanation is used to explain the present invention, do not constitute improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is the systematic schematic diagram of reverse osmosis seawater desalination system described in the embodiment of the present invention；
Fig. 2 is the structural schematic diagram of turbine booster pump described in the embodiment of the present invention；
Fig. 3 is the top view of Fig. 1；
Fig. 4 is the front view of Fig. 1；
Fig. 5 is the cross-sectional view of line A-A in Fig. 3；
Fig. 6 is the cross-sectional view of line C-C in Fig. 3；
Fig. 7 is another layout drawing of bypass described in the embodiment of the present invention；
Fig. 8 is the structural schematic diagram of nozzle described in the embodiment of the present invention；
Fig. 9 is the cross-sectional view of line D-D in Fig. 8；
Figure 10 is the cross-sectional view of line B-B in Fig. 4；
Figure 11 is the structural schematic diagram of turbine spiral case described in the embodiment of the present invention；
Figure 12 is the structural schematic diagram of left turbine spiral case described in the embodiment of the present invention；
Description of symbols:
100- turbine booster pump, 1- pump housing main body, 2- turbine end cap, 3- high pressure influent stream road, 4- regulating valve, 5- bypass, 6-
Low pressure goes out runner, 7- connecting pipe, and 8- high extrudes runner, 9- low pressure influent stream road, 10- central axis, 11- thrust bearing, 12- turbine
Impeller, 13- turbine spiral case, 14- pump spiral case, 15- impeller of pump, 16- nozzle, 17- pump end cap, 18- lubrication piping；
19- charging pump, the first check valve of 20-, 21-10 μ accurate filter, 22-5 μ accurate filter, 23- sampling valve,
24- second one-way valve, 25- low-pressure sensor, 26- high-pressure pump, 27- third check valve, the 5th check valve of 28-, 29- high pressure
Pressure sensor, 30- reverse osmosis membrane assembly, the 6th check valve of 31-, 32- conductivity sensor, 33- three-way solenoid valve, 34- stream
Quantity sensor, 35- fresh-water tank, 36- triple valve, 37- backwashing pump, the 4th check valve of 38-, 39- discharge outlet；
The left turbine spiral case of 1301-, the right turbine spiral case of 1302-；
The left pump spiral case of 1401-, the right pump spiral case of 1402-；
1601- linkage section, 1602- jet segment.
Specific embodiment
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.
In the description of the present invention, it should be noted that the orientation or position of the instructions such as term " on ", "lower", "inner", " back "
Setting relationship is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description of the present invention and simplification of the description, rather than
The device or element of indication or suggestion meaning must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot
It is interpreted as limitation of the present invention.In addition, term " first ", " second " " third " are used for description purposes only, and should not be understood as
Indication or suggestion relative importance.
The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
The present embodiment is related to a kind of reverse osmosis seawater desalination system, as shown in fig. 1 comprising pretreatment unit, reverse osmosis
Saturating unit and fresh-water tank 35, wherein reverse osmosis units include the reverse osmosis membrane assembly 30 with concentrated water side and dilute side, and
The turbine booster pump 100 being connected between pretreatment unit and reverse osmosis membrane assembly 30 is gone here and there between dilute side and fresh-water tank 35
It is connected to three-way solenoid valve 33, another branch of three-way solenoid valve 33 is communicated with discharge outlet 39, and fresh-water tank 35 then by pipeline and is used
Family connection.
As shown in Fig. 1, pretreatment unit specifically includes sequentially connected charging pump 19, filter assemblies, low pressure and passes
Sensor 25 and high-pressure pump 26, and the outlet of high-pressure pump 26 is connected with low pressure influent stream road 9, and in charging pump 19 and filter assemblies it
Between be serially connected with the first check valve 20, and between filter assemblies and low-pressure sensor 25 be equipped with second one-way valve 24, Yu Gao
Third check valve 27 is equipped between press pump 26 and turbine booster pump.And in order to improve filter effect, the filter assemblies of the present embodiment
Including being sequentially connected in series 10 μ of μ accurate filter 21 and 5 accurate filters 22 in 19 downstream of charging pump, and in 5 μ accurate filters
224 outlets are equipped with sampling valve 23, in order to sample and detect the filter effect of raw water.
In addition, reverse osmosis membrane assembly 30 reduces reverse osmosis due to bacteria impurities, microorganism etc. are adsorbed on membranous wall in order to prevent
Permeable membrane performance is serially connected with triple valve 36 in the outlet of fresh-water tank 35 still as shown in Fig. 1, in the one branch road of triple valve 36
It is serially connected with backwashing pump 37, and the outlet of backwashing pump 37 is set between 5 μ accurate filters 22 and low-pressure sensor 25,
And the 4th check valve 38 is equipped in the exit of backwashing pump 37.Further, it is set between dilute side and three-way solenoid valve 33
There is conductivity sensor 32, to monitor the conductivity that reverse osmosis membrane assembly 30 produces water.In addition, in three-way solenoid valve 33 and fresh-water tank
Flow sensor 34 is serially connected between 35.
As shown in Fig. 2 to Fig. 5 comprising the pump housing with turbine chamber and pump chamber is equipped with central axis in rotation in the pump housing
10, and it is fixed on the turbo wheel 12 of 10 one end of central axis in intracavitary be equipped with of turbine, and be connected to 12 side of turbo wheel
Thrust bearing 11 is fixed on the impeller of pump 15 of 10 other end of central axis in being equipped in pump chamber, and in be configured on the pump housing respectively with
The high pressure influent stream road 3 and low pressure of turbine chamber connection go out runner 6, and the low pressure influent stream road 9 being connected to respectively with pump chamber and high extrusion
Runner 8.
Wherein, as shown in Fig. 1, height extrudes the concentrated water side in runner 8 and high pressure influent stream road 3 and above-mentioned reverse osmosis membrane assembly 30
Be connected, above-mentioned third check valve 27 specifically with the low pressure influent stream road 9 of the turbine booster pump 100 be connected, and low pressure go out flow
Road 6 is then communicated with discharge outlet 39.The 5th check valve 28 and height have been sequentially connected in series between runner 8 and concentrated water side in addition, extruding in height
Pressure pressure sensor 29, and the 6th check valve 31 is equipped between concentrated water side and high pressure influent stream road 3.
It as Fig. 6 and combines shown in Fig. 2 and Fig. 3, goes out between runner 6 to be connected to equipped with bypass with low pressure in high pressure influent stream road 3
5, and in the flowmeter not shown in the figure for being serially connected with detection 3 flow of high pressure influent stream road on high pressure influent stream road 3, and in bypass 5
Equipped with the regulating valve 4 to adjust 5 flows of bypass.As a result, regulating valve 4 can be adjusted based on the real-time monitoring effect of flowmeter
Aperture, thus the flow in adjustable high pressure influent stream road 3, so that the flow in high pressure influent stream road 3 remains under design conditions
Optimum flow, and then the working efficiency of turbine booster pump is effectively ensured.And in order to improve using effect, the regulating valve of the present embodiment
4 be specially ball valve, and preferably using the ferrule fitting formula ball valve manually adjusted.
It should be noted that being connected in addition to making bypass 5 directly go out runner 6 with low pressure shown in use Fig. 6, can also adopt
With shown in fig. 7, so that the outlet end of bypass 5 is connected with turbine chamber, and make to bypass the liquid in 5 with impacting turbo wheel 12
Low pressure liquid afterwards goes out runner 6 by low pressure together and flows out.But when using this structure, outlet end and turbine leaf so that bypass 5 are needed
Wheel 12 keeps a fixed spacing, to prevent the hydraulic shock turbo wheel 12 of 5 outflow of bypass.
In the present embodiment, in order to improve using effect, as shown in fig. 7, along high pressure influent stream road 3 fluid flow direction, Yu Gao
The end for being pressed into runner 3 is fixed with the nozzle for being right against 12 tangential direction of turbo wheel (namely import of turbo wheel 12) setting
16, so that the highly pressurised liquid that nozzle 16 is sprayed can impact turbo wheel 12.Wherein, the specific structure of nozzle 16 such as Fig. 8 and
Shown in Fig. 9, specifically includes and be connected with high pressure influent stream road 3 and along away from the gradually small setting of high pressure influent stream road 3 direction section
Linkage section 1601, and it is fixed on the jet segment 1602 of 1601 free end of linkage section.And in order to improve jeting effect, jet segment
The end face of 1602 free ends is configured to arcwall face, and the cavity wall of the arcwall face and turbine chamber fits.
In addition, as Figure 10 and combining shown in Fig. 2, in being configured with the lubrication management communicated with above-mentioned thrust bearing 11 on the pump housing
Road 18, and the connecting pipe 7 being communicated between lubrication piping 18 and low pressure influent stream road 9.So set, it is low that pump side can be used
The low pressure liquid being pressed into runner 9 is lubricated thrust bearing 11, can not only have preferable lubricant effect；While compared to
It is in the prior art that thrust bearing 11 is lubricated using the high highly pressurised liquid extruded in runner 8, it can reduce and turbo wheel 12 is produced
Raw impact, so as to extend the service life of turbo wheel 12.
It as Fig. 5 and combines shown in Fig. 2, is different from existing structure, the pump housing of the present embodiment includes pump housing main body 1, relatively
The turbine spiral case 13 and pump spiral case 14 being arranged in pump housing main body 1, are respectively fixedly connected 2 He of turbine end cap in 1 both ends of pump housing main body
Pump end cap 17, and with pump housing main body 1 be connected and along the low pressure inlet pipe for radially extending setting and low pressure outlet pipe of pump housing main body 1.
Low pressure influent stream above-mentioned road 9 is configured on low pressure inlet pipe, and low pressure goes out runner 6 and is configured in the low pressure outlet pipe；It is above-mentioned
Flat chamber is configured on turbine spiral case 13, and pump chamber is then configured on the pump spiral case 14.
By by the split settings of low pressure outlet pipe and 2 split settings of turbine end cap and low pressure inlet pipe and pump end cap 17, phase
Compared with existing structure, detaching pipelines can be not necessarily to when dismantling turbine end cap 2 or pump end cap 17 is overhauled, it is simple to operate,
And repair and maintenance time and cost can be greatly lowered.In addition, as shown in Fig. 3, in order to improve the entirety of turbine booster pump 100
Aesthetics, along the projecting direction of 1 axis of pump housing main body, low pressure inlet pipe and low pressure outlet pipe are overlapped, and this setting can also be convenient for
The integral layout of turbine booster pump 100.
In addition, as shown in Figure 11 combination Fig. 5, the specific left turbine by being connected together of the turbine spiral case 13 of the present embodiment
Spiral case 1301 and right turbine spiral case 1302 are constituted, and specifically constitute left turbine spiral case by constructing the pin being set in the two and pin hole
Being connected between 1301 and right turbine spiral case 1302, easy to process can be manufactured with this.In addition, in order to improve turbine booster pump 100
Efficiency, as shown in Figure 12, above-mentioned high pressure influent stream road 3 is specifically formed in left turbine spiral case 1301 and right turbine spiral case 1302
Joint, and high pressure influent stream road 3 is shaped by milling, the surface flatness in high pressure influent stream road 3 can be improved, thus so as to reduce
Crushing.
In addition, the split type structure based on turbine spiral case 13, in order to guarantee the whole leakproofness of turbine spiral case 13, Yu Zuotou
First to match not shown in the figure is respectively formed on the end face that flat spiral case 1301 and the right turbine spiral case 1302 connect
Card slot and the first snap ring.Further, the first card slot is the multiple of the spaced radial setting along left turbine spiral case 1301, corresponding
Ground, the first snap ring are the multiple of the spaced radial setting along right turbine spiral case 1302, can be on left turbine spiral case 1301 and the right side with this
The effect of similar labyrinth seal is formed between turbine spiral case 1302, and makes the sealing effect with higher of turbine spiral case 13.
It is similar with 13 structure of turbine spiral case for the ease of processing and manufacturing in the present embodiment, as shown in Fig. 5, pump spiral case 14
Also it is made of the left pump spiral case 1401 and right pump spiral case 1402 being connected together, the high runner 8 that extrudes above-mentioned is set to left pump spiral case
1401 and right pump spiral case 1402 joint, and the high runner 8 that extrudes is shaped also by milling, to improve its surface flatness.Separately
Outside, similar with 13 structure of turbine spiral case, phase is respectively formed on the end face that spiral case 1402 connects in left pump spiral case 1401 and right pump
Matched second card slot and the second snap ring.Further, the second card slot and the second snap ring are also respectively spaced multiple.
Based on the above whole description, at work, seawater is through charging pump 19 for the reverse osmosis seawater desalination system of the present embodiment
The filtering of 10 μ of μ accurate filter 21 and 5 accurate filters 22 is sequentially entered with the first check valve 20, and is detected by sampling valve 23
Filter quality.Then, filtered low pressure seawater carries out pressure detecting through second one-way valve 24 to low-pressure sensor 25, keeps away
Exempt from pump depletion.Then, filtered low pressure seawater enters turbine through low-pressure sensor 25 and pump side low pressure influent stream road 9 and is pressurized
The low pressure influent stream road 9 of pump 100 pressurizes, and the seawater after pressurization extrudes runner 8 and high-pressure pressure sensor 29 by pump side height
Sea water desalination separating treatment is carried out to reverse osmosis membrane assembly 30.High pressure sea water forms fresh water through reverse osmosis membrane, and fresh water successively flows
Fresh-water tank 35 is arrived through fresh water mouth, conductivity sensor 32, three-way solenoid valve 33 and flow sensor 34, fresh-water tank 35 passes through pipeline
Fresh water can be delivered to fresh water user.
Wherein, conductivity sensor 32 can detect the conductivity in water, and the control of acceptable external control system, when anti-
The conductivity for producing water conductivity and being higher than Drinking Water of permeable membrane element 30, controls 33 no power of three-way solenoid valve, so that not
Qualification produces water and flows to the discharge of discharge outlet 39 through three-way solenoid valve 33；And when the production water conductivity of reverse osmosis membrane assembly 30 is lower than life
When the conductivity of drinking water, control three-way solenoid valve 33 is powered, and produces water through three-way solenoid valve 33 and enters fresh-water tank 35.
And to prevent reverse osmosis membrane assembly 30 from leading to reverse osmosis performance due to bacteria impurities, microorganism etc. are adsorbed on membranous wall
Decline should carry out periodic flushing to reverse osmosis membrane assembly 30.When specific flushing, backwashing pump 37 and turbine booster pump 100 are in
Open state, the fresh water in fresh-water tank 35 enter turbine by the 4th check valve 38 by the pressurization of backwashing pump 37 through triple valve 36 and increase
In press pump 100, fresh water, which constantly enters after turbine booster pump 100 pressurizes, enters reverse osmosis membrane assembly 30, and high-pressure side concentrated water passes through saturating
Flat side high pressure influent stream road 3 is recycled in turbine booster pump 100, is gone out runner 6 eventually by turbine side low pressure and is flowed to discharge outlet 39
Discharge, and run 2-5 minutes and be filled with fresh water into reverse osmosis membrane assembly 30 and turbine booster pump 100, entire reverse osmosis seawater
Desalting plant is under fresh water environment, and backwash process is completed.
The reverse osmosis seawater desalination system of the present embodiment, by the way that bypass 5 is arranged on turbine booster pump and in bypass 5
Regulating valve 4 is set, the aperture of regulating valve 4 can be adjusted based on the real-time monitoring effect of flowmeter, thus adjustable high pressure influent stream
Flow in road 3 so that the flow in high pressure influent stream road 3 remains the optimum flow under design conditions, and then can effectively ensure that
The working efficiency of turbine booster pump, so that the recovery efficiency of remaining energy amount can be improved；In addition, by make low pressure influent stream road 9 with
Thrust bearing 11 is connected, and is lubricated using the low pressure liquid in pump side low pressure influent stream road 9 to thrust bearing 11, not only may be used
With preferable lubricant effect, while lubricant medium can also be reduced to impact caused by turbo wheel 12, so as to extend turbine
The service life of impeller 12, to can effectively ensure that the normal work of reverse osmosis seawater desalination system.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of reverse osmosis seawater desalination system, including pretreatment unit, reverse osmosis units and fresh-water tank (35), feature exists
In: the reverse osmosis units include the reverse osmosis membrane assembly (30) with concentrated water side and dilute side, and are connected to the pre- place
Manage the turbine booster pump (100) between unit and the reverse osmosis membrane assembly (30), Yu Suoshu dilute side and the fresh-water tank
(35) it is serially connected between three-way solenoid valve (33), another branch of the three-way solenoid valve (33) is communicated with discharge outlet (39)；
And the turbine booster pump (100) includes the pump housing with turbine chamber and pump chamber, and intracavitary equipped with turbine in the turbine
Impeller (12), and be connected to the thrust bearing (11) of the turbo wheel (12) side, be equipped in Yu Suoshu pump chamber with it is described
The coaxial connected impeller of pump (15) of turbo wheel (12), and in being configured with the height being connected to respectively with the turbine chamber on the pump housing
It is pressed into runner (3) and low pressure goes out runner (6), and the low pressure influent stream road (9) and high extrusion runner that are connected to respectively with the pump chamber
(8), and high extrusion runner (8) and high pressure influent stream road (3) are connected with the concentrated water side, low pressure influent stream road
(9) it is connected with the pretreatment unit, the low pressure goes out runner (6) and communicates with the discharge outlet (39)；
And Yu Suoshu high pressure influent stream road (3) goes out between runner (6) to be connected to the low pressure equipped with bypass (5), and in the high pressure
It is serially connected with the flowmeter of detection high pressure influent stream road (3) flow on influent stream road (3), is equipped in the bypass (5) to adjust
The regulating valve (4) of described bypass (5) flow；And in being configured with the lubrication management communicated with the thrust bearing (11) on the pump housing
Road (18), and the connecting pipe (7) being communicated between the lubrication piping (18) and low pressure influent stream road (9).
2. reverse osmosis seawater desalination system according to claim 1, it is characterised in that: Yu Suoshu dilute side and the electromagnetism
Conductivity sensor (32) are equipped between triple valve (33), and between the three-way solenoid valve (33) and the fresh-water tank (35)
It is serially connected with flow sensor (34).
3. reverse osmosis seawater desalination system according to claim 1, it is characterised in that: the pretreatment unit includes successively
Charging pump (19), filter assemblies, low-pressure sensor (25) and the high-pressure pump (26) of connection, and the high-pressure pump (26) go out
Mouth is connected with low pressure influent stream road.
4. reverse osmosis seawater desalination system according to claim 3, it is characterised in that: the filter assemblies include successively going here and there
It is connected to the 10 μ accurate filters (21) and 5 μ accurate filters (22) in the charging pump (19) downstream.
5. reverse osmosis seawater desalination system according to claim 3, it is characterised in that: the outlet of Yu Suoshu fresh-water tank (35)
It is serially connected with triple valve (36), the one branch road of Yu Suoshu triple valve (36) is serially connected with backwashing pump (37), and the backwash
The outlet for pumping (37) is set between the filter assemblies and the low-pressure sensor (25).
6. reverse osmosis seawater desalination system according to any one of claim 1 to 5, it is characterised in that: along the high pressure
The flow direction of influent stream road (3) interior fluid, the end in Yu Suoshu high pressure influent stream road (3), which is fixed with, to be right against the turbo wheel (12) and cuts
The nozzle (16) of line direction setting.
7. reverse osmosis seawater desalination system according to claim 6, it is characterised in that: the nozzle (16) include with it is described
High pressure influent stream road (3) is connected and along the linkage section (1601) away from the gradually small setting of high pressure influent stream road (3) direction section,
And it is fixed on the jet segment (1602) of the linkage section (1601) free end, and the end face of the jet segment (1602) free end
It is configured to arcwall face.
8. reverse osmosis seawater desalination system according to any one of claim 1 to 5, it is characterised in that: the pump housing packet
It includes pump housing main body (1), the turbine spiral case (13) and pump spiral case (14) positioned opposite in the pump housing main body (1) is respectively fixedly connected
Turbine end cap (2) and pump end cap (17) in pump housing main body (1) both ends, and the connected and edge with the pump housing main body (1)
The low pressure inlet pipe for radially extending setting and low pressure outlet pipe of the pump housing main body (1), low pressure influent stream road (9) are configured in described
On low pressure inlet pipe, the low pressure goes out runner (6) and is configured in the low pressure outlet pipe, and the turbine chamber is configured in the turbine spiral case
(13) on, the pump chamber is configured on the pump spiral case (14).
9. reverse osmosis seawater desalination system according to claim 8, it is characterised in that: along pump housing main body (1) axis
Projecting direction, the low pressure inlet pipe and the low pressure outlet pipe overlap.
10. reverse osmosis seawater desalination system according to claim 8, it is characterised in that: the turbine spiral case (13) is by even
The left turbine spiral case (1301) being connected together and right turbine spiral case (1302) are constituted, and the pump spiral case (14) is by what is be connected together
The left pump spiral case (1401) and right pump spiral case (1402) are constituted.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910654944.3A CN110436655A (en) | 2019-07-19 | 2019-07-19 | Reverse osmosis seawater desalination system |
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| CN201910654944.3A CN110436655A (en) | 2019-07-19 | 2019-07-19 | Reverse osmosis seawater desalination system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112854398A (en) * | 2021-01-07 | 2021-05-28 | 大连理工大学 | Strong brine sea water discharging diffuser |
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