CN101913716B - Small reverse osmosis seawater desalting system with energy reclaiming high-pressure pump - Google Patents
Small reverse osmosis seawater desalting system with energy reclaiming high-pressure pump Download PDFInfo
- Publication number
- CN101913716B CN101913716B CN2010102311882A CN201010231188A CN101913716B CN 101913716 B CN101913716 B CN 101913716B CN 2010102311882 A CN2010102311882 A CN 2010102311882A CN 201010231188 A CN201010231188 A CN 201010231188A CN 101913716 B CN101913716 B CN 101913716B
- Authority
- CN
- China
- Prior art keywords
- pressure
- piston
- water
- reverse osmosis
- pump
- 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.)
- Expired - Fee Related
Links
Images
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
- Y02A20/131—Reverse-osmosis
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention discloses a small reverse osmosis seawater desalting system with an energy reclaiming high-pressure pump. The high-pressure pump comprises a low-pressure raw water inlet, a high-pressure raw water outlet, a high-pressure thick water inlet, a low-pressure thick water discharge port, a plunger pump head for boosting raw water, a double-extension shaft motor and a plunger motor for reclaiming energy of reverse osmosis high-pressure thick water, wherein the plunger pump head, the double-extension shaft motor and the plunger motor share a rotating shaft. A seawater desalting device at least comprises a water suction pump, a pretreatment assembly and a reverse osmosis membrane assembly. A process comprises that: after seawater is pretreated, enters the high-pressure pump and is boosted, the sweater enters a reverse osmosis membrane pressure container from the high-pressure raw water outlet, fresh water after desalting of a reverse osmosis membrane is produced water, the thick salt water from the reverse osmosis pressure container enters the high-pressure pump and residual pressure is reclaimed, and the low-pressure thick salt water after the residual pressure is reclaimed is discharged from the low-pressure thick water discharge port of the energy reclaiming high-pressure pump. The system can reclaim and utilize the energy of the reverse osmosis high-pressure thick water at the same time of boosting the raw water so as to reduce the energy consumption of a reverse osmosis system.
Description
Technical field
The present invention relates to a kind of seawater desalination system, relate in particular to the small-sized desalination process that a kind of axial-piston (plunger type) that is used for small reverse osmosis seawater desalting system possesses the high-pressure service pump of energy recovery function and uses this high-pressure service pump.
Background technique
Reverse osmosis desalination technology is to utilize high-pressure service pump that raw water is pressurizeed; Make its pressure reach required operation pressure; Former water after the pressurization is flowed in the reverse osmosis membrane pressurized container, and the fresh water that sees through reverse osmosis membrane becomes product water, and the brine that sees through reverse osmosis membrane then is being with high pressure to discharge.
An important goal of reverse osmosis desalination technology development is to reduce operating cost, and the shared proportion maximum of energy consumption is to reduce the most effectively means of desalinating cost so cut down the consumption of energy in the formation of operating cost.Wherein improving the efficient of high-pressure service pump and the overbottom pressure of brine is recycled is most important both direction.
The overbottom pressure recovery and utilization technology of counter-infiltration system brine is the energy recovery technology, and present energy recycle device mainly contains two types, is respectively hydraulic turbine formula energy recycle device and Work-exchange type energy recovery device.But these two kinds of energy recovery technology are only applicable to medium-scale above energy recycle device at present.
From the market of present desalination of sea water, because people are to the understanding of desalination of sea water water quality and the decline gradually of desalination of sea water cost, desalination technology is accepted by people.Small-sized sea water desalinating unit has that overall investment is few, volume is little, mobility, promptly buy and advantage such as promptly use; The occasion of very suitable family, boats and ships, drill platform, small-sized island or a small amount of desalination of sea water demand of other short-terms is used; Develop very fastly, have vast market.
In general, for medium-and-large-sized reverse osmosis desalination device, the ton water consumption has dropped to 3.8～4.5kWh, and the ton water consumption of small-sized sea water desalinating unit will be up to 9～12kWh.Wherein most important reason has two: one, and the efficient of large-scale high-pressure service pump that is used for the conventional version of reverse osmosis seawater desalination system is higher than the minitype high voltage pump; The 2nd, be not specially adapted to the apparatus for energy recovery of small reverse osmosis seawater desalting device, if adopt the apparatus for energy recovery pattern of more large-scale reverse osmosis desalination device employing, perhaps be difficult to type selecting, perhaps investment is very uneconomical.
Summary of the invention
The present invention is directed to above-mentioned existing technology; A kind of energy reclaiming high-pressure pump of small reverse osmosis seawater desalting system is provided, adopts small reverse osmosis seawater desalting system to carry out desalination of sea water and solved present small reverse osmosis seawater desalting plant energy consumption problem of higher with this high-pressure service pump.
In order to solve the problems of the technologies described above; The technological scheme that the energy reclaiming high-pressure pump of small reverse osmosis seawater desalting system of the present invention is achieved is: comprise motor, plunger pump head and piston motor; Said plunger pump head is used for to former water supercharging, and said piston motor is used for reclaiming reverse osmosis high-pressure thick water energy; Said motor is the double extension shaft motor, and the output shaft of one of which end is connected with said plunger pump head, and the output shaft of its other end is connected with said piston motor; Said plunger pump head is identical with said piston motor structure, includes: pump head housing and fixing swash plate, said pump head housing are used for holding the piston that plunger pump central shaft and a plurality of is parallel to the plunger pump central shaft; On the pump head housing, be provided with a water intake and a water outlet; Said piston comprises and the piston/cylinder of plunger pump spigot shaft coaxle rotation that be provided with a plurality of piston bodies in the said piston/cylinder, said piston body is connected with a backhaul dish; Said fixedly swash plate is used to make a plurality of piston bodies that are parallel to the plunger pump central shaft to change the fixedly swash plate of its relative position that is parallel to central shaft when rotated, and said fixedly swash plate is provided with the piston piston shoes; The end that said a plurality of piston body is positioned at the backhaul dish is a spherosome; Said piston piston shoes have and are used for the articulated joint of Hinged piston one end spherosome and the bottom of on fixing swash plate, sliding, and this base diameter is a bit larger tham the Circularhole diameter on the backhaul dish, and when the piston hole on the backhaul dish was passed in articulated joint, this bottom was stuck on the backhaul dish just; The piston hole of each piston body of assembling forms a piston/cylinder sap cavity on the said piston/cylinder, and the bottom of said piston/cylinder sap cavity is equipped with a through hole; The exterior edge face of said piston/cylinder through hole is equipped with thrust plate, and this thrust plate is used for distributing the through hole of said piston/cylinder to be communicated with water intake or to be communicated with water outlet; Be provided with pressure spring between said piston/cylinder and the backhaul dish so that the piston piston shoes with fixedly closely contact between the swash plate and between piston/cylinder through hole and the thrust plate.
A kind of small reverse osmosis seawater desalting device of the present invention with above-mentioned energy reclaiming high-pressure pump; It comprises pulsating pump, pre-processing assembly and the reverse osmosis membrane assembly that is connected by pipeline at least; Also be connected with energy reclaiming high-pressure pump as claimed in claim 1 with said reverse osmosis membrane assembly; Being connected of the water intake of said energy reclaiming high-pressure pump and water outlet is following: the water intake of said plunger pump head is the former water inlet of low pressure; The former water inlet of said low pressure is connected with said pre-processing assembly; The water outlet of said plunger pump head is the former water out of high pressure, and the former water out of said high pressure is connected with the water intake of reverse osmosis membrane assembly, and the water intake of said piston motor is the high-pressure thick water inlet; Said high-pressure thick water inlet is connected with the high-pressure thick water out of said reverse osmosis membrane assembly, and the water outlet of said piston motor is the low-press thick water outlet.
A kind of technological method that adopts above-mentioned small reverse osmosis seawater desalting device to carry out desalination of sea water of the present invention is: seawater pumps into pre-processing assembly through pulsating pump; Seawater enters into said energy reclaiming high-pressure pump through the former water inlet of low pressure after the pretreatment; Through enter into the reverse osmotic pressure force container of reverse osmosis membrane assembly after the supercharging of plunger pump head from the former water out of high pressure, then, from the reverse osmotic pressure force container two-way current that come out; One the tunnel is promptly to desalinate the product water after the processing through the fresh water after the reverse osmosis membrane desalination; Another road is to enter into said energy reclaiming high-pressure pump from the brine that the reverse osmotic pressure force container comes out through the high-pressure thick water inlet, reclaims overbottom pressure by piston motor, and the low-press thick salt solution after the recovery overbottom pressure is from the low-press thick water out discharging of energy reclaiming high-pressure pump.
Compared with prior art, the invention has the beneficial effects as follows:
(1) adopting fixedly, the oblique plate plunger pump principle can make the plunger pump head have maximum volumetric efficiency as the pump head of energy reclaiming high-pressure pump;
(2) adopt the double output shaft motor; And the diaxon of motor linked to each other with the piston motor running shaft with the plunger pump head respectively; On whole energy reclaiming high-pressure pump, reduced the use of driving components such as gear and belt to the full extent, made energy reclaiming high-pressure pump have maximum mechanical efficiency;
(3) adopt the inverse process of plunger pump to realize recycling to the reverse osmosis concentrated water overbottom pressure; Solved the dense water overbottom pressure energy recovery problem of small reverse osmosis desalting plant aptly; Can be used for scale on the desalination by reverse osmosis device of daily output fresh water 50 ton per days, the minimum desalination by reverse osmosis device that uses with 2 ton per days;
(4) adopt energy recycle device, high pressure pump head, motor integrated design, the integral pump system design is compact, in light weight, makes the counter-infiltration system design cycle simpler, reduces the volume and weight of small reverse osmosis desalting plant;
(5) the small-sized sea water desalinating unit that the small-sized sea water desalinating unit technology of said energy reclaiming high-pressure pump is designed is used in employing, and the ton water consumption reduces half the approximately from other small-sized sea water desalinating unit energy consumptions.Actual measurement relatively, small-sized sea water desalinating unit energy consumption in the market is many at 9～12kWh, and adopts small-sized sea water desalinating unit ton water consumption that the small-sized sea water desalinating unit technology of said use energy reclaiming high-pressure pump designed at 4～5kWh.
Description of drawings
Fig. 1 is the external structure schematic representation of energy reclaiming high-pressure pump among the present invention;
Fig. 2 is the axial section schematic representation of high-pressure service pump shown in Fig. 1;
Fig. 3 is the vertical view cutaway drawing of high-pressure service pump shown in Fig. 1;
Fig. 4 is the small reverse osmosis seawater desalting device technique flow chart with high-pressure service pump as shown in Figure 1.
Among the figure:
I plunger pump head II electric motor I II piston motor
1, fixing swash plate 3, the 13 backhaul dishes of 15 locating studs 2,14
4,24 piston piston shoes, 5,12 piston/cylinders, 6,21 piston/cylinder sap cavities
7,11 thrust plates, 8 motor stators, 9 motor rotors
10 bearings, 16 pistons are ball 17,22 piston bodies fixedly
The former water out 20 high-pressure thick water inlets of 18 springs, 19 high pressure
23 pistons are the former water inlet 26 low-press thick water outs of ball 25 low pressure fixedly
27 plunger pump central shafts, 28 motor output shafts, 29 piston motor central shafts
31 seawater, 32 water intaking pumps, 33 pre-processing assemblies
34 booster pumps, 35 reverse osmosis membrane assemblies, 36 frequency variators
The former seawater of 37 valves, 38 energy reclaiming high-pressure pump A
Seawater D sub-high pressure seawater after the seawater C pretreatment before the B pretreatment
E high pressure sea water F produces water (fresh water) G high-pressure thick water
H low pressure concentrated water discharge
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is done to describe in further detail.
As shown in Figure 1, the energy reclaiming high-pressure pump of small reverse osmosis seawater desalting system of the present invention comprises: be used for to plunger pump head I, the electric motor I I of former water supercharging and be used for reclaiming piston motor III three parts of reverse osmosis high-pressure thick water energy; The shared running shaft that can the central shaft of above-mentioned three parts be connected to form through locating stud 1 or other Placements is as having illustrated plunger pump central shaft 27 and motor output shaft 28 and piston motor output shaft 29 among Fig. 2 and Fig. 3; And the former water out of the former water inlet of low pressure 25, high pressure 19, high-pressure thick water inlet 20 and low-press thick water outlet 26.
Said electric motor I I among the present invention is the double extension shaft motor; Motor can be with three-phase or two-phase motor; Can select according to service condition, this motor is except possessing the required stator that has of common motor 8, rotor 9 etc., and different is to have two output shafts 28 of stretching; The output shaft of one of which end is connected with said plunger pump head I, and the output shaft of its other end is connected with said piston motor III.
The structure of said plunger pump head I comprises being used for holding plunger pump central shaft 27 and a plurality of pump head housings that are parallel to the piston of plunger pump central shaft 27 shown in the left half among Fig. 2 and Fig. 3; The thrust plate 7 of the former water of high pressure that is used for distributing the former water of low pressure to get into piston and from piston, flows out; Be used to make a plurality of piston bodies 17 that are parallel to centre rotational axis around 27 rotations of plunger pump central shaft the time, to change the fixedly swash plate 2 that piston is parallel to the relative position of central shaft, said fixedly swash plate is provided with piston piston shoes 4.On the pump head housing, be provided with a water intake and a water outlet; This water intake is the former water inlet 25 of low pressure, and this water outlet is the former water out 19 of high pressure, and said piston comprises the piston/cylinder 5 with the 27 coaxial rotations of plunger pump central shaft; Be provided with a plurality of piston bodies 17 that are parallel to plunger pump central shaft 27 in the said piston/cylinder 5; Said piston body 17 is connected with a backhaul dish 3, and piston body 17 is enclosed within on the backhaul dish 3, and the end that said a plurality of piston bodies 17 are positioned at backhaul dish 3 is equipped with fixedly ball 16; The bottom that said piston piston shoes 4 have circular hole (articulated joint) that can Hinged piston one end spherosome and can on fixing swash plate 2, slide; Its base diameter is a bit larger tham the circular hole on the backhaul dish 3; Can articulated joint be passed the piston hole on the backhaul dish 3 and this bottom is stuck on the backhaul dish just, thereby guarantee piston body 17 on piston piston shoes 4, to rotate at any angle and do not break away from piston piston shoes 4.That is, the piston piston shoes 4 of piston body 17 bottoms can fixedly slide on the swash plate 2; The piston hole of each piston body 17 of assembling forms a piston/cylinder sap cavity 6 on the said piston/cylinder 5, and the bottom of said piston/cylinder sap cavity 6 is equipped with a through hole; Said thrust plate 7 is assemblied on the exterior edge face of piston/cylinder through hole; This thrust plate 7 is used for distributing the through hole of said piston/cylinder 5 to be communicated with water intake or to be communicated with water outlet; Said thrust plate is provided with the U type hole of symmetry, and said water intake or water outlet are communicated with the through hole of piston/cylinder through the U type hole on the thrust plate.The setting pressure spring makes piston piston shoes 4 closely contact with fixing swash plate 2 between backhaul dish 3 and piston/cylinder 5, makes closely contacting with thrust plate 7 into and out of water end (W.E.) on the piston/cylinder 5 simultaneously.
The structure of said piston motor III is shown in the right half among Fig. 2 and Fig. 3; The structure basically identical of the structure of this piston motor III and above-mentioned plunger pump head I; Mainly comprising the shell that holds piston motor central shaft 29 and a plurality of piston bodies 22, is that high-pressure thick water inlet 20 and low-press thick water out 26 are arranged on the shell; The thrust plate 11 of the former water of high pressure that is used for distributing the former water of low pressure to get into piston and from piston, flows out; Be used to make a plurality of piston bodies 22 that are parallel to piston motor central shaft 29 around these central shaft 29 rotations the time, to change the fixedly swash plate 14 that piston is parallel to the relative position of central shaft.Other details repeat no more.
What energy reclaiming high-pressure pump of the present invention was suitable is; The central shaft 27 of plunger pump head I, motor two stretch output shaft 28 and piston motor central shaft 29 and become a running shaft through mode relative fixed such as locating studs; Both reduced the use of driving components such as gear, belt; Increase mechanical efficiency, also practiced thrift the volume and weight of energy reclaiming high-pressure pump on to greatest extent.
As shown in Figure 4; The present invention is a kind of to have energy reclaiming high-pressure pump small reverse osmosis seawater desalting device; At least comprise the pulsating pump 32, pre-processing assembly 33 and the reverse osmosis membrane assembly 35 that connect by pipeline; Also be connected with energy reclaiming high-pressure pump 38 as claimed in claim 1 with said reverse osmosis membrane assembly 35; The intake-outlet of said energy reclaiming high-pressure pump 38 connects as follows: the former water inlet 25 of said low pressure is connected with said pre-processing assembly 33; The former water out 19 of said high pressure is connected with the water intake of reverse osmosis membrane assembly 35, and said high-pressure thick water inlet 20 is connected with the high-pressure thick water out of said reverse osmosis membrane assembly 35, and the water outlet of said piston motor III is a low-press thick water outlet 26.Described energy reclaiming high-pressure pump 38 adopts frequency variator 36 to control the rotating speed of motor, thereby can control the water flow of said energy reclaiming high-pressure pump 38 effectively.Between the high-pressure thick water out of said reverse osmosis membrane assembly 35 and the high-pressure thick water inlet of said energy reclaiming high-pressure pump valve 37 can be set, with the required pressure of control reverse osmosis deaslination.The former water pressure scope that enters into energy reclaiming high-pressure pump 38 through the former water inlet 25 of low pressure is at 0.2MPa～0.5Mpa; If the pretreated former water pressure of process satisfies the requirement of minimum pressure 0.2MPa, then directly get into energy reclaiming high-pressure pump; If, then a booster pump 34 need be set between pre-processing assembly 33 and energy reclaiming high-pressure pump 38 through pretreated former water pressure＜0.2MPa, thereby, former water pressure is risen to >=0.2Mpa.
The manufacturing process of using above-mentioned small reverse osmosis seawater desalting device with energy reclaiming high-pressure pump to carry out desalination of sea water is: seawater pumps into pre-processing assembly 33 through pulsating pump 32; Seawater enters into said energy reclaiming high-pressure pump 38 through the former water inlet 25 of low pressure after the pretreatment; Through enter into the reverse osmotic pressure force container of reverse osmosis membrane assembly 35 after the plunger pump head I supercharging from the former water out 19 of high pressure, wherein, promptly desalinate the product water after the processing through the fresh water after the reverse osmosis membrane desalination; And enter into said energy reclaiming high-pressure pump 38 through high-pressure thick water inlet 20 from the brine that the reverse osmotic pressure force container comes out, and reclaiming overbottom pressure by piston motor III, the low-press thick salt solution after the recovery overbottom pressure is from the low-press thick water out discharging of energy reclaiming high-pressure pump 38.Realize the small-sized desalting plant of the small reverse osmosis seawater desalting device technique of described use energy reclaiming high-pressure pump, comprise equipment such as pulsating pump (or elevator pump), pre-processing assembly, booster pump (determining whether needs), said energy reclaiming high-pressure pump and reverse osmosis membrane assembly according to pretreated former water pressure.
Below, according to the instance of the link of device in the running, further specify energy reclaiming high-pressure pump of the present invention and be and how to realize to the energy recovery of the dense water of small reverse osmosis desalination system with to the supercharging of former water.
Integral energy is reclaimed high-pressure service pump, and plunger pump head I is used for being pressurized to required pressure to former water, and piston motor III is used for reclaiming the overbottom pressure realization energy recovery of dense water, and electric motor I I is used for replenishing the deficiency that piston motor is given former water supercharging required torque.
Former water gets into the plunger pump head from the former water inlet 25 of the low pressure of plunger pump head I, gets in the piston/cylinder sap cavity 6 through thrust plate 7.Former water after the pressurization flows out from piston/cylinder sap cavity 6, flows out from the former water out 19 of high pressure through thrust plate 7.The afterbody of piston body 17 has fixedly ball 16; Ball 16 is hinged on the piston piston shoes 4; Can arbitrarily angled rotation and do not break away from piston piston shoes 4, the piston body 17 of hinged piston piston shoes 4 is enclosed within on the backhaul dish 3, and is installed in the piston/cylinder sap cavity 6 of piston/cylinder 5.Fixedly swash plate 2 is fixed on the bottom of plunger pump head I through locating stud 1, owing between backhaul dish 7 and the piston/cylinder 5 pressure spring 18 has been installed, can guarantee that piston piston shoes 4 closely contact with fixing swash plate 2, and rotational slide on fixing swash plate 2.Piston/cylinder 5 fix with plunger pump central shaft 27 and with these central shaft 27 rotations and with several piston bodies 17 in the piston/cylinder sap cavity 6 around its central shaft 27 rotations and fixedly sliding on the swash plate 2.Because piston piston shoes 4 are close to fixedly swash plate 2 rotations; Therefore the relative position that is parallel to central shaft of piston can change along with rotation; When piston body 17 during away from thrust plate 7; Former water gets in the piston/cylinder sap cavities 6 through thrust plate 7, when piston body 17 when thrust plate 7 directions are moved, piston body 17 pumps from the former water out 19 of high pressure with former water supercharging and through thrust plate 7.The speed of piston/cylinder 5 rotations is fast more, and its raw water flow that pumps is big more.
Piston motor III realizes that to high-pressure thick water overbottom pressure the process of energy recovery is the inverse process that plunger pump head I gives former water pressurization on principle.That is: high-pressure thick water from high-pressure thick water inlet 20 get into piston motor III; And through thrust plate 11 entering piston/cylinder sap cavities 21; Low-press thick water after the release overbottom pressure flows out from the through hole of piston/cylinder sap cavity 21, discharges from low-press thick water out 26 through thrust plate 11.Because high-pressure thick water gives 22 1 of piston bodies towards the fixing pressure of swash plate 14 in piston/cylinder sap cavity 21; Make piston body 22 have one to the fixing movement tendency of swash plate 14 directions; Like this; Fixedly swash plate 14 is just given 22 1 reaction forces perpendicular to the swash surfaces direction of piston body; This reaction force produced a vertical piston motor output shaft 29 and with output shaft 29 component of coplane not because piston body 22 is contained in the sap cavity 21 of piston/cylinder 12, piston/cylinder has just had one and has driven the moment of torsion that output shaft is selected.Be with piston body 22 and rotate around conveying axis along with piston/cylinder 12, the overbottom pressure blind forwarding of dense water changes into the mechanical energy of piston motor.In the rotary course of piston/cylinder 12, because swash plate 14 is pushing away piston body 22 to the motion of thrust plate 11 directions, the dense water that has discharged energy is just given release sap cavity 21 by piston body 22, discharges from low-press thick water outlet 26 through thrust plate 11.
Electric motor I I among the present invention is the double output shaft motor, between plunger pump head I and piston motor III.The double output shaft 28 of motor is fixedly connected respectively at the output shaft 29 of the III of the central shaft 27 of plunger pump head I and piston motor; Because piston motor III is through reclaiming the moment of torsion that dense water overbottom pressure provides; Greatly reducing electric motor I I is the required moment of torsion that provides of former water supercharging, the power consumption of promptly having practiced thrift motor greatly.
Explain in the face of the small-sized sea water desalinating unit implementation of processes process of using this energy reclaiming high-pressure pump down: former seawater A is through water intaking pump 32 or pulsating pump 32, and seawater B gets into pre-processing assembly (system) 33 before the pretreatment, after purifying the water inlet that reaches reverse osmosis membrane and require through pretreatment system; Seawater C is after energy reclaiming high-pressure pump 38 is pressurized to required pressure after the pretreatment; High pressure sea water E gets into reverse osmosis membrane pressurized container 35, sees through being of reverse osmosis membrane and produces water F, and high-pressure thick water G gets into energy reclaiming high-pressure pump 38; Carry out supercharging thereby recycle overbottom pressure to seawater C after the pretreatment, so, realized reverse osmosis concentrated water energy-recovering machine desalting process.
In addition; Get at seawater after the pretreatment before the former water inlet 25 of low pressure of energy reclaiming high-pressure pump 38; Also should comprise following process according to its hydraulic pressure difference: because preferably be controlled at 0.2MPa～0.5Mpa in the former water pressure of the former water inlet 25 of low pressure that gets into energy reclaiming high-pressure pump 38; If the pressure of the pretreated seawater C of process satisfies the requirement of minimum pressure 0.2MPa, can directly get into the former water inlet 25 of low pressure of energy reclaiming high-pressure pump 38 as stated; If seawater C can not satisfy the pressure requirement of minimum pressure 0.2MPa after this pretreatment, booster pump 34 then need be set with the boost in pressure of seawater after the pretreatment sub-high pressure seawater D to the required pressure range of the former water inlet 25 of low pressure of energy reclaiming high-pressure pump 38.
Although invention has been described for top combination figure; But the present invention is not limited to above-mentioned embodiment, and above-mentioned embodiment only is schematically, rather than restrictive; Those of ordinary skill in the art is under enlightenment of the present invention; Under the situation that does not break away from aim of the present invention, can also make a lot of distortion, these all belong within the protection of the present invention.
Claims (13)
1. the energy reclaiming high-pressure pump of a small reverse osmosis seawater desalting system comprises motor (II), it is characterized in that, also comprises:
Be used for to former water booster plunger pump head (I) and be used for reclaiming the piston motor (III) of reverse osmosis high-pressure thick water energy;
Said motor (II) is the double extension shaft motor, and the output shaft of one of which end is connected with said plunger pump head (I), and the output shaft of its other end is connected with said piston motor (III);
Said plunger pump head (I) is identical with said piston motor (III) structure, includes:
The pump head housing---be used for holding plunger pump central shaft and a plurality of piston that is parallel to the plunger pump central shaft;
On the pump head housing, be provided with a water intake and a water outlet;
Said piston comprises and the piston/cylinder of plunger pump spigot shaft coaxle rotation that be provided with a plurality of piston bodies in the said piston/cylinder, said piston body is connected with a backhaul dish;
Fixedly swash plate---be used to make a plurality of piston bodies that are parallel to the plunger pump central shaft to change the relative position that it is parallel to central shaft when rotated, said fixedly swash plate is provided with the piston piston shoes;
The end that said a plurality of piston body is positioned at the backhaul dish is equipped with fixedly ball; Said piston shoes have and are used for the articulated joint of Hinged piston one end spherosome and the bottom of on fixing swash plate, sliding, and this base diameter is a bit larger tham the Circularhole diameter on the backhaul dish, and when the piston hole on the backhaul dish was passed in articulated joint, this bottom was stuck on the backhaul dish just;
The piston hole of each piston body of assembling forms a piston/cylinder sap cavity on the said piston/cylinder, and the bottom of said piston/cylinder sap cavity is equipped with a through hole; The exterior edge face of said piston/cylinder through hole is equipped with thrust plate, and this thrust plate is used for distributing the through hole of said piston/cylinder to be communicated with water intake or to be communicated with water outlet;
Be provided with pressure spring between said piston/cylinder and the backhaul dish so that the piston piston shoes with fixedly closely contact between the swash plate and between piston/cylinder through hole and the thrust plate.
2. according to the energy reclaiming high-pressure pump of the said small reverse osmosis seawater desalting system of claim 1; It is characterized in that; Water intake in the said plunger pump head (I) is the former water inlet of low pressure (25); Said water outlet is the former water out of high pressure (19), and said thrust plate (7) is used for distributing the former water of low pressure to get into the still former water of outflow high pressure from piston of piston.
3. according to the energy reclaiming high-pressure pump of the said small reverse osmosis seawater desalting system of claim 1, it is characterized in that the water intake in the said piston motor (III) is high-pressure thick water inlet (20), said water outlet is low-press thick water outlet (26); Said thrust plate (11) is used for distributing high-pressure thick water to get into still outflow low-press thick water from piston of piston.
4. according to the energy reclaiming high-pressure pump of the said small reverse osmosis seawater desalting system of claim 1, it is characterized in that said motor (II) is three-phase or two-phase motor.
5. according to the energy reclaiming high-pressure pump of the said small reverse osmosis seawater desalting system of claim 1, it is characterized in that said thrust plate is provided with the U type hole of symmetry, said water intake or water outlet are communicated with the through hole of piston/cylinder through the U type hole on the thrust plate.
6. according to the energy reclaiming high-pressure pump of the said small reverse osmosis seawater desalting system of claim 1, it is characterized in that all parts are processed by resistant material in this high-pressure service pump.
7. according to the energy reclaiming high-pressure pump of the said small reverse osmosis seawater desalting system of claim 6, it is characterized in that said resistant material comprises the polyether-ether-ketone of two phase stainless steel, ultra two phase stainless steel and carbon fiber reinforcement.
8. small reverse osmosis seawater desalting device; It is characterized in that; At least comprise the pulsating pump (32), pre-processing assembly (33) and the reverse osmosis membrane assembly (35) that connect by pipeline; Also be connected with energy reclaiming high-pressure pump as claimed in claim 1 (38) with said reverse osmosis membrane assembly (35); Being connected of the water intake of said energy reclaiming high-pressure pump (38) and water outlet is following: the water intake of said plunger pump head (I) is the former water inlet of low pressure (25), and the former water inlet of said low pressure (25) is connected with said pre-processing assembly (33), and the water outlet of said plunger pump head (I) is the former water out of high pressure (19); The former water out of said high pressure (19) is connected with the water intake of reverse osmosis membrane assembly (35); The water intake of said piston motor (III) is high-pressure thick water inlet (20), and said high-pressure thick water inlet (20) is connected with the high-pressure thick water out of said reverse osmosis membrane assembly (35), and the water outlet of said piston motor (III) is low-press thick water outlet (26).
9. small reverse osmosis seawater desalting device according to claim 8 is characterized in that, described energy reclaiming high-pressure pump (38) adopts frequency variator to control the rotating speed of motor, thereby controls the water flow of said energy reclaiming high-pressure pump (38).
10. small reverse osmosis seawater desalting device according to claim 8; It is characterized in that; Between the high-pressure thick water out of said reverse osmosis membrane assembly (35) and the high-pressure thick water inlet of said energy reclaiming high-pressure pump valve is set, with the required pressure of control reverse osmosis deaslination.
11. a desalination process that is suitable for the small reverse osmosis seawater desalting device is characterized in that, adopts small-sized sea water desalinating unit as claimed in claim 8 to carry out desalination of sea water, its technology is following:
Seawater pumps into pre-processing assembly (33) through pulsating pump (32);
Seawater enters into said energy reclaiming high-pressure pump (38) through the former water inlet of low pressure (25) after the pretreatment;
Through entering into the reverse osmotic pressure force container of reverse osmosis membrane assembly (35) after plunger pump head (I) supercharging from the former water out of high pressure (19), from the reverse osmotic pressure force container two-way current that come out;
One the tunnel is promptly to desalinate the product water after the processing through the fresh water after the reverse osmosis membrane desalination;
Another road is to enter into said energy reclaiming high-pressure pump (38) from the brine that the reverse osmotic pressure force container comes out through high-pressure thick water inlet (20); Reclaim overbottom pressure by piston motor (III), the low-press thick salt solution after the recovery overbottom pressure is from the low-press thick water out discharging of energy reclaiming high-pressure pump (38).
12. desalination process according to claim 11 is characterized in that, the former water pressure scope that enters into energy reclaiming high-pressure pump (38) through the former water inlet of low pressure (25) is at 0.2MPa～0.5MPa; If the pretreated former water pressure of process satisfies the requirement of minimum pressure 0.2MPa, then directly get into energy reclaiming high-pressure pump; If, then need between pre-processing assembly (33) and energy reclaiming high-pressure pump (38), a booster pump (34) be set through pretreated former water pressure＜0.2MPa, thereby, former water pressure is risen to >=0.2MPa.
13. desalination process according to claim 11 is characterized in that, technique for pretreating is employing multistage filtering technology or kills livestock-flocculate-filtering technique, makes the water inlet requirement that meets reverse osmosis membrane through pretreated former water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102311882A CN101913716B (en) | 2010-07-20 | 2010-07-20 | Small reverse osmosis seawater desalting system with energy reclaiming high-pressure pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102311882A CN101913716B (en) | 2010-07-20 | 2010-07-20 | Small reverse osmosis seawater desalting system with energy reclaiming high-pressure pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101913716A CN101913716A (en) | 2010-12-15 |
| CN101913716B true CN101913716B (en) | 2012-05-23 |
Family
ID=43321399
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102311882A Expired - Fee Related CN101913716B (en) | 2010-07-20 | 2010-07-20 | Small reverse osmosis seawater desalting system with energy reclaiming high-pressure pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101913716B (en) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102557354A (en) * | 2012-02-06 | 2012-07-11 | 马永强 | Seawater desalination process method for source water pretreatment by using biological method |
| EP3009181A1 (en) * | 2014-09-29 | 2016-04-20 | Sulzer Management AG | Reverse osmosis system |
| ES2671917B1 (en) * | 2015-05-12 | 2019-03-21 | Tempero 2000 S L | PROCEDURE TO DILUTE OR CONCENTRATE SOLUTIONS APPLIED TO PROCESSES OF DESALATION OF WATER. |
| CN106186409A (en) * | 2016-08-31 | 2016-12-07 | 北京三清智库科技开发有限公司 | Varying duty adjusting means and seawater desalination system and method |
| CN106428504A (en) * | 2016-10-31 | 2017-02-22 | 河北科技大学 | Small reverse osmosis seawater desalting device |
| CN106517596A (en) * | 2016-12-22 | 2017-03-22 | 重庆市沃利克环保设备有限公司 | Reverse osmosis seawater desalination system and treatment process implemented by same |
| CN107445322A (en) * | 2017-09-06 | 2017-12-08 | 北京大学深圳研究生院 | One kind miniaturization reverse osmosis seawater desalination system |
| CN107935215A (en) * | 2017-11-22 | 2018-04-20 | 南方创业（天津）科技发展有限公司 | It is a kind of to be suitable for bitter and the recoverable purifier of sea water desalination pressure at the same time |
| CN108557955B (en) * | 2018-01-30 | 2024-04-26 | 浙江大农实业股份有限公司 | Reverse osmosis sea water desalination energy recovery system and energy recovery method |
| CN110984290B (en) * | 2019-12-28 | 2023-04-07 | 北京化工大学 | Plant root system imitating water collecting device |
| CN110937659B (en) * | 2019-12-31 | 2020-11-17 | 自然资源部天津海水淡化与综合利用研究所 | Small-sized flashlight-integrated multi-plunger type seawater desalination machine and seawater desalination method |
| CN112694180A (en) * | 2020-11-27 | 2021-04-23 | 燕山大学 | Highly integrated reverse osmosis seawater desalination system |
| CN114772826B (en) * | 2022-04-13 | 2023-12-29 | 青岛万源环境科技有限公司 | Reclaimed water recycling method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101041484A (en) * | 2006-03-22 | 2007-09-26 | 天津市蓬拓科技有限公司 | Hyperfiltration sea-water distillatory with energy recovery |
| CN101092257A (en) * | 2007-07-27 | 2007-12-26 | 西安交通大学 | Method and device of desalination process by reverse osmosis for water |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080014100A1 (en) * | 2006-06-30 | 2008-01-17 | Norman Lyons | Positive displacement hydro pump |
-
2010
- 2010-07-20 CN CN2010102311882A patent/CN101913716B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101041484A (en) * | 2006-03-22 | 2007-09-26 | 天津市蓬拓科技有限公司 | Hyperfiltration sea-water distillatory with energy recovery |
| CN101092257A (en) * | 2007-07-27 | 2007-12-26 | 西安交通大学 | Method and device of desalination process by reverse osmosis for water |
Non-Patent Citations (1)
| Title |
|---|
| 王生辉等.具备升压功能的差动式反渗透能量回收装置的研制.《中国给水排水》.2010,第26卷(第12期),133-136. * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101913716A (en) | 2010-12-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101913716B (en) | Small reverse osmosis seawater desalting system with energy reclaiming high-pressure pump | |
| CN201737788U (en) | Small reverse-osmosis seawater desalinating device with plunger type energy-recovery high-pressure pump | |
| CN202808438U (en) | Membrane-method seawater desalination pressurization and energy recovery integrated device | |
| CN201714609U (en) | Plunger type energy recovery high-pressure pump for small sea water desalination device | |
| US8419940B2 (en) | Combined axial piston liquid pump and energy recovery pressure exchanger | |
| CN103979643A (en) | Reverse osmosis seawater desalination system using self-pressurization energy recycling high-pressure pump | |
| CN101581328A (en) | United piston self-pressurization energy recovery pump used for reverse osmosis seawater desalination system | |
| CN101254407A (en) | Three-cylinder three piston type recuperator for reverse osmosis seawater desalination | |
| CN106132514A (en) | Energy-recuperation system | |
| CN203694916U (en) | Reciprocation pump-pressure energy recycling all-in-one machine of reverse osmosis seawater desalting system | |
| WO2009151174A1 (en) | Energy recovery apparatus driven by rotary plate valve | |
| CN108238664A (en) | Integral type low pulse sea water desalination energy regenerating supercharging device | |
| CN203855441U (en) | Reverse osmosis sea water desalinization system adopting self-pressurization energy recycling high-pressure pump | |
| MacHarg | Retro-fitting existing SWRO systems with a new energy recovery device | |
| CN100390074C (en) | Multi-path pressure switcher for reverse osmosis sea water desalting energy recovery device | |
| CN102815766B (en) | Liquid pressure energy recovery device based on full rotation valves | |
| CN201407250Y (en) | Joint piston self-pressurization energy recovery pump used for reverse osmosis seawater desalination system | |
| CN104061205A (en) | Pressure exchanger energy recovery cylinder | |
| CN105883977B (en) | A kind of energy regenerating Miniature seawater desalination device of and plunger pump cooperation | |
| CN201882933U (en) | Device for transmitting wind energy to desalt seawater for hydraulic system | |
| CN102588356A (en) | Rotary fluid pressure switcher with connected single cylinder | |
| Stover | Retrofits to improve desalination plants | |
| CN102887565B (en) | Energy recovery device for seawater desalination equipment | |
| EP3070329B1 (en) | Hydraulic axial piston pump having a floating rotatory drum | |
| CN102464362A (en) | Device for desalinating seawater by transmitting wind energy by hydraulic system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20171027 Address after: The Pearl River Street Port Economic Zone Binhai New Area 300457 Tianjin City No. 52 Patentee after: TIANJIN BLUECROSS MEMBRANE TECHNOLOGY CO.,LTD. Address before: 300192 Tianjin East Road, Nankai District, No. 1 Patentee before: THE INSTITUTE OF SEAWATER DESALINATION AND MULTIPURPOSE UTILIZATION, SOA (TIANJIN) |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120523 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |