CN102588355A - Liquid-liquid pressure exchange device and application method thereof - Google Patents
Liquid-liquid pressure exchange device and application method thereof Download PDFInfo
- Publication number
- CN102588355A CN102588355A CN2012100270088A CN201210027008A CN102588355A CN 102588355 A CN102588355 A CN 102588355A CN 2012100270088 A CN2012100270088 A CN 2012100270088A CN 201210027008 A CN201210027008 A CN 201210027008A CN 102588355 A CN102588355 A CN 102588355A
- Authority
- CN
- China
- Prior art keywords
- liquid
- pressure
- elastic diaphragm
- pressurized container
- guide rod
- 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.)
- Pending
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
Abstract
A liquid-liquid pressure exchange device is used for transferring pressure of a stream of liquid to the other stream of liquid and simultaneously avoids mixing of the two streams of liquid. The liquid-liquid pressure exchange device is composed of two pressure containers in which elastic diaphragms are arranged and two two-position four-way valves. During pressure exchange, the two-position four-way valves are used for switching running directions of high pressure liquid and low pressure liquid, and the two pressure containers alternately perform the operation of pressure exchange. When high pressure liquid enters one of the pressure containers, pressure is transferred to low pressure liquid which is beforehand injected to the pressure container, and meanwhile, the low pressure liquid enters the other pressure container and the previous high pressure liquid which has achieved pressure exchange is discharged from the pressure container. The two pressure containers alternately perform the operation with the cooperation of the two-position four-way valves so that the process that the high pressure liquid continuously transfers pressure to the low pressure liquid is achieved. The liquid-liquid pressure exchange device is suitable for pressure recovery of sea water desalination in reverse osmosis process and other occasions where pressure exchange is needed.
Description
Technical field
The present invention relates to a kind of device of realizing the pressure-exchange of water or other liquid, be used for the pressure recovery of hyperfiltration desalination of sea water or the occasion that other manufacturing processs need pressure-exchange.
Background technique
In the hyperfiltration desalting process; Need be pressurized to seawater more than the 6MPa; Moisture sees through reverse osmosis membrane under force becomes fresh water, and salt is then most of to become concentrated seawater (being called for short dense water) together by the reverse osmosis membrane interception and with the seawater that does not see through reverse osmosis membrane.From seawater, produce fresh water with such method; The a fresh water of generally every production need be to surpassing two parts of seawater pressurizations; That is to say; Become fresh water through only seeing through reverse osmosis membrane less than half the (being generally 45%) in the seawater of pressurization, surpassing half the (being generally 55%) becomes the more dense water of salinity.These dense water still have before discharging near original pressure, are carrying huge energy, if direct discharging will cause the huge waste of energy.Therefore, in the desalination of sea water engineering, the pressure recovery device of dense water seems extremely important, and is also very necessary.
The dense water pressure recovering device of commercial applications mainly contains three kinds at present; A kind of is to utilize the dense water of high pressure to promote impeller; Impeller drives the conventional seawater of impeller propelled of another side through axle, thereby realizes the transfer of the energy of high-pressure thick water to the low pressure seawater, Here it is so-called turbine (turbo); Another kind is to promote piston through high-pressure thick water, and piston promotes another piston through connecting rod, thereby gives the low pressure seawater energy transfer; The third is a kind of no piston pressure transfer unit, and it is directly to promote the low pressure seawater through concentrated seawater, and a plurality of pressurized containers replace at a high speed, and the time of contact of dense water and conventional seawater is very short, thereby avoids a large amount of blending of dense water and conventional seawater.These three kinds of pressure recovery devices all be through Der Grundsatz der Maschinen the pressure-exchange of dense water to the low pressure seawater, but pluses and minuses are arranged respectively.The advantage of first kind of turbine installation is that device is fairly simple, and the single assembly scale can be bigger, but efficient is lower, can only reclaim the energy about 80% usually.Second kind characteristics are good reliabilitys, but efficient is also low, and energy recovery efficiency also is about 80%.Though the third energy recovery efficiency high (can up to 90%), manufacture difficulty is high, the single assembly small scale, and have the blending problem between dense water and the seawater.More than the drawback of three kinds of pressure exchangers be that cost is high.
Summary of the invention
The objective of the invention is to solve high, big, the inefficient problem of manufacture difficulty of the common cost of pressure recovery device of present commercial applications, a kind of simple structure, easy to manufacture, cost is low, energy recovery efficiency is high liquid-hydraulic coupling switch are provided.
Technological scheme of the present invention is: make highly pressurised liquid directly promote low pressure liquid to improve the efficient of pressure-exchange through suitable design, need the pressurized container with certain slenderness ratio for this reason; For fear of the blending of two kinds of liquid, designed one and covered whole pressurized container section and can made dense water and seawater lay respectively at the both sides of this elastic diaphragm by the elastic diaphragm of liquid promotion; Be positioned at the guide rod that pressurized container central authorities arrange along its length in order to let the movement locus of this elastic diaphragm keep necessary accuracy, to have designed, make this elastic diaphragm follow guide rod when being promoted and move back and forth by liquid; In order to realize that pressure-exchange carries out continuously, need two pressurized containers parallel connections to use, the anti-phase operation, promptly when a pressurized container carries out pressure-exchange, another pressurized container then carries out seawater injection and concentrated water discharge simultaneously; In order to realize the instantaneous switching of flow direction, specialized designs two-position four-way valve, each is equipped with two such two-position four-way valves to pressurized container.
The formation of liquid of the present invention-hydraulic coupling switch is equipped with two pressurized containers (1-A), (1-B) and two two-position four-way valves (2-A), (2-B) shown in accompanying drawing (1).Pressurized container (1-A), (1-B) two ends are connected with two-position four-way valve (2-A), (2-B) through flange and pipeline.
Pressurized container (1-A), (1-B) have identical structure, shown in accompanying drawing (2), are that slenderness ratio is 10～20 cylindrical vessel.There is opening at the two ends of pressurized container (1-A), (1-B) and flange (6) is housed so that be connected with two-position four-way valve (2-A), (2-B) and other required external pipeline.Pressurized container (1-A) (1-B) inside is equipped with and is positioned at container central authorities along container length direction guide rod of arranging (4) and the disc elastic diaphragm (5) that is used for separating two kinds of liquid, and guide rod (4) two ends respectively are equipped with a position-limit mechanism (3) and are crossed with prevention elastic diaphragm (5).Guide rod (4) passes from the central vertical of elastic diaphragm (5), thereby elastic diaphragm (5) is moved reciprocatingly along guide rod (4) when being promoted by the liquid in the container.The means of fixation of guide rod (4) in pressurized container (1-A), (1-B) is demountable structure, so that install and change elastic diaphragm (5).
The structure of elastic diaphragm (5) is shown in accompanying drawing (4), and it is the discoidal elastic diaphragm that a center portion has the guiding circular hole.The length of disc centre position pilot hole (5a) and the ratio of middle circle bore dia are 1: 1～5: 1, so that elastic diaphragm (5) also can keep not taking place with the vertical of guide rod (4) deflection in motion; Elastic diaphragm (5) is applying under the situation of external force and can be out of shape; So that the flange (6) through pressurized container (1-A), (1-B) two ends is installed on the guide rod (4) of pressurized container (1-A) in (1-B), elastic diaphragm (5) can recover original disc-shape with the section of covering pressure container (1-A), (1-B) fully after external force is cancelled simultaneously.The outer marginal circumference somewhat larger in diameter of elastic diaphragm (5) is in (1-B) internal diameter of pressurized container (1-A); Thereby the circumferential edges that guarantees elastic diaphragm (5) and pressurized container (1-A) (1-B) inwall contact, and elastic diaphragm (5) just separates two kinds of liquid and avoided mutual blending like this.
Two-position four-way valve (2-A) (2-B) has identical structure, shown in accompanying drawing (3), is made up of valve body with four gateways (2a) and spool (2b) with two passages.Four gateways (2a1) of valve body (2a), (2a2), (2a3), (2a4) lead to the four direction on mutually perpendicular two axis respectively.Two curved channels (2b1), (2b2) are arranged in the spool (2b), and two passages have two openings respectively, and the central axis angle of two openings of each passage becomes 90 °.Spool carries out 90 ° rotation at every turn during work, thereby makes (2b1), (2b2) two passages be communicated with (2a1), (2a2) and (2a3), (2a4) four different gateways, the conversion of the flow direction that is achieved respectively.
Described liquid-night pressure exchanger; It is characterized in that; It is made up of two pressurized containers (1-A), (1-B) and two two-position four-way valves (2-A), (2-B); Two pressurized containers (1-A), (1-B) and two two-position four-way valves (2-A), (2-B) are connected through supporting flange and pipeline, by the flow direction of two-position four-way valve (2-A), (2-B) switching highly pressurised liquid and low pressure liquid, make two pressurized containers (1-A), (1-B) carry out the anti-phase alternation when carrying out pressure-exchange.
Described liquid-night pressure exchanger is characterized in that, pressurized container (1-A), (1-B) are 10～20 cylindrical shape for slenderness ratio, the elastic diaphragm (5) that there is the guide rod of arranging along its length (4) that is positioned at central authorities inside and can moves back and forth along guide rod (4).
Described liquid-night pressure exchanger; It is characterized in that; Two-position four-way valve (2-A) (2-B) is made up of valve body (2a) that comprises be uniformly distributed along the circumference 4 interfaces (2a1), (2a2), (2a3), (2a4) and the spool (2b) that comprises 2 curved channels (2b1), (2b2); Spool (2b) is spherical in shape or cylindrical; The inner chamber of valve body (2a) forms through machining with the outer surface of spool (2b) and cooperates, and spool (2b) can be around its rotational under external force drives, and 4 interfaces (2a1) on the valve body (2a), (2a2), (2a3), (2a4) can dock with two curved channels (2b1) on the spool (2b), 4 ports of (2b2) in twos; Spool (2b) is the moving half-twist of revolution under external force drives; Make 4 interfaces (2a1), (2a2), (2a3), (2a4) on the valve body (2a) just in time realize UNICOM's exchange: promptly concerning each interface, moving 90 ° of spool (2b) revolution, this interface are just from switching to another adjacent interface UNICOM with one of two interfaces that are adjacent UNICOM.
Described liquid-night pressure exchanger; It is characterized in that; Pressurized container (1-A) (1-B) two ends of interior guide rod (4) is provided with position-limit mechanism (3); When the elastic diaphragm (5) that moves along guide rod (4) touched position-limit mechanism (3), the drive unit of two-position four-way valve (2-A), (2-B) moved immediately, makes spool (2b) half-twist of two-position four-way valve (2-A), (2-B).
Described liquid-night pressure exchanger; It is characterized in that; Be positioned at elastic diaphragm (5) that pressurized container (1-A), (1-B) can move along guide rod (4) for discoid; The pilot hole in its center portion (5a) internal diameter matches with guide rod (4) external diameter; Promote when making flow of fluid in the pressurized container (1-A), (1-B) elastic diaphragm (5) thereupon together along guide rod (4) move and maintenance vertical with guide rod (4), the external profile diameter of elastic diaphragm (5) is slightly larger than the internal diameter of pressurized container (1-A), (1-B), thereby makes the peripheral edge portion of elastic diaphragm (5) be close to the inwall of pressurized container (1-A), (1-B).
Described liquid-night pressure exchanger; It is characterized in that; Being positioned at pressurized container (1-A), (1-B) can be to process with the elastic material of engineering plastics and so on along the elastic diaphragm (5) that guide rod (4) moves; Can be out of shape under external force, after external force is cancelled, just restore to the original state, thus make it can through pressurized container (1-A) (1-B) interface at two ends be installed on the interior guide rod (4) of pressurized container (1-A), (1-B).
Described liquid-hydraulic coupling switch is characterized in that, when its work, the travelling speed that is positioned at the elastic diaphragm (5) of pressurized container (1-A), (1-B) is 0.1～1.0m/s.
Described liquid-hydraulic coupling switch is characterized in that, this liquid-hydraulic coupling switch can singly be organized the work of device pattern, also can two or more sets device constellation work increase exchange capacity.
The working method of this liquid-hydraulic coupling switch is following:
Before liquid-hydraulic coupling switch starts; Earlier with filling with seawater in two pressurized containers (1-A), (1-B); And making the interior elastic diaphragm (5) of two pressurized containers all be positioned at the mutually same end of pressurized container, this moment, pressure exchanger was in the starting state shown in accompanying drawing (5).Open valve V-2, V-3, V-4 earlier, seawater booster pump (W-3) and high-pressure service pump (W-2) that the external reverse osmosis unit (W-1) of breakout pressure switch is equipped with, seawater change into two strands of liquid after through reverse osmosis unit---fresh water and dense water.Dense water is via in (202) port injection pressure container (1-A) of two-position four-way valve (2-B) and promote elastic diaphragm (5) and move to the other end; Make elastic diaphragm (5) promote to be positioned at of the other end motion of the seawater of its opposite side to pressurized container (1-A); Seawater just becomes high pressure by low pressure and discharges through (102) of two-position four-way valve (2-A) port like this, gets into reverse osmosis unit (W-1) by the pipeline of line transportation to the valve V-2.After elastic diaphragm (5) touched position-limit mechanism (3), the drive unit that position-limit mechanism (3) triggers two two-position four-way valves (2-A), (2-B) moved simultaneously, made the spool of two two-position four-way valves (2-A), (2-B) rotate 90 synchronously.Meanwhile start seawater booster pump (W-4).Liquid-hydraulic coupling switch is transformed into the working state one shown in the accompanying drawing (6) by initial operational state like this.
In the working state of showing like accompanying drawing (6); The elastic diaphragm (5) that also promotes wherein in (202) port entering pressurized container (1-B) of high-pressure thick water via two-position four-way valve (2-B) moves to the other end; Make elastic diaphragm (5) promote to be positioned at of the other end motion of the seawater of its opposite side to pressurized container (1-B); Seawater just becomes high pressure by low pressure and discharges through (102) of two-position four-way valve (2-A) port like this, gets into reverse osmosis unit (W-1) again by the pipeline of line transportation to the valve V-2.The seawater that is meanwhile transported by seawater booster pump (W-4) gets into the elastic diaphragm (5) that promotes in the pressurized container (1-A) wherein to the other end motion through (101) of two-position four-way valve (2-A) port, make elastic diaphragm (5) promote to be positioned at its opposite side release the dense water of energy move and discharge to the other end of pressurized container (1-A) through (201) of two-position four-way valve (2-B) port.No matter the elastic diaphragm in which pressurized container (5) arrives an end of pressurized container separately earlier and touches the position-limit mechanism (3) on the guide rod (4); The drive unit that two two-position four-way valves (2-A), (2-B) are triggered in the capital moves simultaneously; Make the spool (2b) of two two-position four-way valves (2-A), (2-B) rotate 90 ° simultaneously, be transformed into the working state two shown in accompanying drawing (7) through liquid-hydraulic coupling switch after this process.
In the working state two shown in accompanying drawing (7); The elastic diaphragm (5) that high-pressure thick water promotes wherein from (202) port entering pressurized container (1-A) of two-position four-way valve (2-B) moves to the other end; Make elastic diaphragm (5) promote to be positioned at of the other end motion of the seawater of its opposite side to pressurized container (1-A); Seawater just becomes high pressure by low pressure and discharges through (102) of two-position four-way valve (2-A) port like this, gets into reverse osmosis unit (W-1) again by the pipeline of line transportation to the valve V-2.The seawater that is meanwhile transported by seawater booster pump (W-4) gets into the elastic diaphragm (5) that promotes in the pressurized container (1-B) wherein to the other end motion through (101) of two-position four-way valve (2-A) port, make elastic diaphragm (5) promote to be positioned at its opposite side release the dense water of energy to pressurized container (1-B) thus the other end move and discharge through (201) of two-position four-way valve (2-B) port.No matter the elastic diaphragm (5) in which pressurized container arrives an end of pressurized container separately earlier and touches the position-limit mechanism (3) on the guide rod; The drive unit that two two-position four-way valves (2-A), (2-B) are triggered in the capital moves simultaneously; Make the spool (2b) of two two-position four-way valves (2-A), (2-B) rotate 90 ° simultaneously, be converted back to the working state one shown in accompanying drawing (6) again through liquid-hydraulic coupling switch after this process.
The mode of preferential control that preferentially arrives at is adopted in position-limit mechanism operation among two pressurized containers (1-A), (1-B); Promptly the elastic diaphragm (5) in two pressurized containers (1-A), (1-B) whichsoever touches the position-limit mechanism of an end (3) separately earlier; The drive unit that that an is touched position-limit mechanism (3) all can be controlled two two-position four-way valves (2-A), (2-B) makes spool (2b) be rotated the operation of 90 degree simultaneously, the purpose that flows to separately with the synchronous conversion of liquid that reaches in two containers (1-A), (1-B).Like this; Elastic diaphragm (5) in the working procedure in (1-A), (1-B) two pressurized containers anti-phase synchronously operation; Make the working state of two pressurized containers (1-A), (1-B) also be in synchronous rp state; That is to say that two pressurized containers (1-A), (1-B) are in the state of the pressure-exchange that hockets.
The advantage of this liquid-hydraulic coupling switch is: the modular construction of this device is simple, and accuracy of manufacturing requires low, and cost is low.Elastic diaphragm gets final product with rubber or plastics, because of its elasticity speciality, has reduced the requirement to the dimensional accuracy of pressurized container inwall.Have only the requirements of making of two-position four-way valve higher, but also realize easily.In order to reach the purpose that increases exchange capacity, can organize the device parallel connection more and use, install simple.Because only separate through elastic diaphragm between high-pressure thick water and the low pressure seawater, high-pressure thick water directly promotes the low pressure seawater, has improved the efficient of pressure-exchange.
Description of drawings:
Accompanying drawing 1: liquid-night pressure exchanger constitutes schematic representation.
Accompanying drawing 2: pressurized container 1-A, 1-B organigram.
Accompanying drawing 3: two-position four-way valve 2-A, 2-B organigram
Accompanying drawing 4: elastic diaphragm 5 structural representations.
Accompanying drawing 5: liquid-hydraulic coupling switch starting state schematic representation.
Accompanying drawing 6: liquid-hydraulic coupling switch working state one schematic representation.
Accompanying drawing 7: liquid-hydraulic coupling switch working state two schematic representation
Accompanying drawing 8: 2 liang of groups of embodiment liquid-hydraulic coupling switch constellation working state schematic representation.
Mark explanation: 1-A, 1-B-pressurized container; The 3-position-limit mechanism; The 4-guide rod; The 5-elastic diaphragm; 5a-elastic diaphragm pilot hole; 6-pressurized container flange; 2-A, 2-B-two-position four-way valve; The 2a-valve body; The 2b-spool; Four interfaces of 2a1,2a2,2a3,2a4-two-position four-way valve body; 2b1,2b2 curved channel; 101, two of 102-two-position four-way valve 2-A external-connected ports; 201, two of 202-two-position four-way valve 2-B external-connected ports.The W-1-reverse osmosis unit; The W-2-high-pressure service pump; W-3, W-4-seawater booster pump; V-2, V-3, V-4-valve;
Present embodiment has been described a kind of liquid-hydraulic coupling switch and application process thereof.The described liquid of present embodiment-hydraulic coupling switch is equipped with two pressurized containers and two two-position four-way valves shown in accompanying drawing (1).The pressurized container two ends are connected with two-position four-way valve through flange and pipeline.
Pressurized container (1-A), (1-B) have identical structure, shown in accompanying drawing (2), are that slenderness ratio is 10～20 cylindrical vessel.There is opening at the two ends of pressurized container (1-A), (1-B) and flange (6) is housed so that be connected with two-position four-way valve (2-A), (2-B) and other required external pipeline.Pressurized container (1-A), (1-B) inside are equipped with and are positioned at container central authorities along container length direction guide rod of arranging (4) and the disc elastic diaphragm (5) that is used for separating two kinds of liquid, and a position-limit mechanism (3) respectively is equipped with at guide rod (4) two ends) cross with prevention elastic diaphragm (5).Guide rod (4) passes from the central vertical of elastic diaphragm (5), thereby elastic diaphragm (5) is moved reciprocatingly along guide rod (4) when being promoted by the liquid in the container.The means of fixation of guide rod (4) in pressurized container (1-A), (1-B) is demountable structure, so that install and change elastic diaphragm (5).
The structure of elastic diaphragm (5) is shown in accompanying drawing (4), and it is the discoidal elastic diaphragm that a center portion has the guiding circular hole.The degree of depth of pilot hole (5a) and the ratio of Circularhole diameter are 1: 1～5: 1, so that elastic diaphragm (5) also can be protected in motion deflection do not take place with the vertical of guide rod (4); Elastic diaphragm (5) is applying under the situation of external force and can be out of shape; So that the flange (6) through pressurized container (1-A), (1-B) two ends is installed on the guide rod (4) in pressurized container (1-A), (1-B), elastic diaphragm (5) can recover original disc-shape with the section of covering pressure container (1-A), (1-B) fully after external force is cancelled simultaneously.The outer marginal circumference somewhat larger in diameter of elastic diaphragm (5) is in the internal diameter of pressurized container (1-A), (1-B); Thereby the circumferential edges that guarantees elastic diaphragm (5) contacts with pressurized container (1-A), (1-B) inwall, and elastic diaphragm (5) just separates two kinds of liquid and avoided mutual blending like this.
Two-position four-way valve (2-A), (2-B) have identical structure, shown in accompanying drawing (3), are made up of valve body with four gateways (2a) and spool (2b) with two passages.Four gateways (2a1) of valve body (2a), (2a2), (2a3), (2a4) lead to the four direction on mutually perpendicular two axis respectively.Two curved channels (2b1), (2b2) are arranged in the spool (2b), and two passages have two openings respectively, and the central axis angle of two openings of each passage becomes 90 °.Spool carries out 90 ° rotation at every turn during work, thereby makes (2b1), (2b2) two passages be communicated with (2a1), (2a2) and (2a3), (2a4) four different gateways, the conversion of the flow direction that is achieved respectively.
The working method of described liquid-hydraulic coupling switch is following:
Before liquid-hydraulic coupling switch starts; Earlier with filling with seawater in two pressurized containers (1-A), (1-B); And making the interior elastic diaphragm (5) of two pressurized containers all be positioned at the mutually same end of pressurized container, this moment, pressure exchanger was in the starting state shown in accompanying drawing (5).Open valve V-2, V-3, V-4 earlier, seawater booster pump (W-3) and high-pressure service pump (W-2) that the external reverse osmosis unit (W-1) of breakout pressure switch is equipped with, seawater change into two strands of liquid after through reverse osmosis unit---fresh water and dense water.Dense water is via in (202) port injection pressure container (1-A) of two-position four-way valve (2-B) and promote elastic diaphragm (5) and move to the other end; Make elastic diaphragm (5) promote to be positioned at of the other end motion of the seawater of its opposite side to pressurized container (1-A); Seawater just becomes high pressure by low pressure and discharges through (102) of two-position four-way valve (2-A) port like this, gets into reverse osmosis unit (W-1) by the pipeline of line transportation to the valve V-2.After elastic diaphragm (5) touched position-limit mechanism (3), the drive unit that position-limit mechanism (3) triggers two two-position four-way valves (2-A), (2-B) moved simultaneously, makes the spool (2b) of two two-position four-way valves (2-A), (2-B) rotate 90 synchronously.Meanwhile start seawater booster pump (W-4).Pressure exchanger is transformed into the working state one shown in the accompanying drawing (6) by initial operational state like this.
In the working state of showing like accompanying drawing (6); The elastic diaphragm (5) that also promotes wherein in (202) port entering pressurized container (1-B) of high-pressure thick water via two-position four-way valve (2-B) moves to the other end; Make elastic diaphragm (5) promote to be positioned at of the other end motion of the seawater of its opposite side to pressurized container (1-B); Seawater just becomes high pressure by low pressure and discharges through (102) of two-position four-way valve (2-A) port like this, gets into reverse osmosis unit (W-1) by the pipeline of line transportation to the valve V-2.The seawater that is meanwhile transported by seawater booster pump (W-4) gets into the elastic diaphragm (5) that promotes in the pressurized container (1-A) wherein to the other end motion through (101) of two-position four-way valve (2-A) port, make elastic diaphragm (5) promote to be positioned at its opposite side release the dense water of energy to pressurized container (1-A) thus the other end move and discharge through (201) of two-position four-way valve (2-B) port.After no matter the elastic diaphragm in which pressurized container (5) arrives an end of pressurized container separately earlier and touches the position-limit mechanism (3) on the guide rod (4); The drive unit that two two-position four-way valves (2-A), (2-B) are triggered in the capital moves simultaneously; Make the spool (2b) of two two-position four-way valves (2-A), (2-B) rotate 90 ° simultaneously, be transformed into the working state two shown in accompanying drawing (7) through pressure exchanger after this process.
In the working state two shown in accompanying drawing (7); The elastic diaphragm (5) that high-pressure thick water promotes wherein from (202) port entering pressurized container (1-A) of two-position four-way valve (2-B) moves to the other end; Make elastic diaphragm (5) promote to be positioned at of the other end motion of the seawater of its opposite side to pressurized container (1-A); Seawater just becomes high pressure by low pressure and discharges through (102) of two-position four-way valve (2-A) port like this, gets into reverse osmosis unit (W-1) by the pipeline of line transportation to the valve V-2.The seawater that is meanwhile transported by seawater booster pump (W-4) gets into the elastic diaphragm (5) that promotes in the pressurized container (1-B) wherein to the other end motion through (101) of two-position four-way valve (2-A) port, make elastic diaphragm (5) promote to be positioned at its opposite side release the dense water of energy to pressurized container (1-B) thus the other end move and discharge through (201) of two-position four-way valve (2-B) port.After no matter the elastic diaphragm in which pressurized container (5) arrives an end of pressurized container separately earlier and touches the position-limit mechanism (3) on the guide rod; The drive unit that two two-position four-way valves (2-A), (2-B) are triggered in the capital moves simultaneously; Make the spool (2b) of two two-position four-way valves (2-A), (2-B) rotate 90 ° simultaneously, be converted back to the working state one shown in accompanying drawing (6) again through pressure exchanger after this process.
The mode of preferential control that preferentially arrives at is adopted in position-limit mechanism operation among two pressurized containers (1-A), (1-B); Promptly the elastic diaphragm (5) in two pressurized containers (1-A), (1-B) whichsoever touches the position-limit mechanism of an end (3) separately earlier; The drive unit that that an is touched position-limit mechanism (3) all can be controlled two two-position four-way valves (2-A), (2-B) makes spool (2b) be rotated the operation of 90 degree simultaneously, the purpose that flows to separately with the synchronous conversion of liquid that reaches in two containers (1-A), (1-B).Like this; Elastic diaphragm (5) in the working procedure in (1-A), (1-B) two pressurized containers anti-phase synchronously operation; Make the working state of two pressurized containers (1-A), (1-B) also be in synchronous rp state; That is to say that two pressurized containers (1-A) (1-B) are in the state of the pressure-exchange that hockets.
The advantage of this liquid-hydraulic coupling switch is: the modular construction of this device is simple, and accuracy of manufacturing requires low, and cost is low.Elastic diaphragm gets final product with rubber or plastics, because of its elasticity speciality, has reduced the requirement to the dimensional accuracy of pressurized container inwall.Have only the requirements of making of two-position four-way valve higher, but also realize easily.In order to reach the purpose that increases exchange capacity, can organize the device parallel connection more and use, install simple.Because only separate through elastic diaphragm between high-pressure thick water and the low pressure seawater, high-pressure thick water directly promotes the low pressure seawater, has improved the efficient of pressure-exchange.
Embodiment's 2. present embodiments have been described two groups of liquid-hydraulic coupling switches and have been the application process that constellation constitutes a device unit.The described liquid of present embodiment-hydraulic coupling switch is equipped with two groups of totally four pressurized containers and two groups totally four two-position four-way valves shown in accompanying drawing (8), two groups of liquid-hydraulic coupling switches connect in parallel.The realization technological scheme is: after the interface of the liquid of two groups of liquid-hydraulic coupling switch turnover is connected through pipeline is corresponding in twos; Be connected to required pipeline through pipeline again; That is: after two of two groups of liquid-hydraulic coupling switches 101 mouthfuls corresponding connections, be connected to the pipeline behind the valve (V-2) through pipeline; After two 102 mouthfuls of two groups of liquid-hydraulic coupling switches corresponding connections, be connected to the pipeline behind the seawater booster pump (W-4) through pipeline; After two 201 mouthfuls corresponding connections of two groups of liquid-hydraulic coupling switches, be connected to the discharge pipe of low-press thick water through pipeline; After two 202 mouthfuls corresponding connections of two groups of liquid-hydraulic coupling switches, be connected to the high-pressure thick water output interface of reverse osmosis unit (W-1) through pipeline.
The Starting mode of the described liquid of present embodiment-hydraulic coupling switch and working method are with embodiment 1.
Claims (8)
1. liquid-hydraulic coupling switch, it comprises two pressurized containers (1-A), (1-B), position-limit mechanism (3), guide rod (4), elastic diaphragm (5), two two-position four-way valves (2-A) (2-B).It is characterized in that, with after pipeline is connected, (2-B) switch the flow direction of highly pressurised liquid and low pressure liquid by two two-position four-way valves (2-A) when carrying out pressure-exchange, make (1-B) operated in anti-phase that hockets of two pressurized containers (1-A) through supporting flange.
2. like claims 1 described liquid-hydraulic coupling switch; It is characterized in that; Pressurized container (1-A), (1-B) are 10～20 cylindrical shape for slenderness ratio, the elastic diaphragm (5) that there is the guide rod of arranging along its length (4) that is positioned at central authorities inside and can moves back and forth along guide rod (4).
3. like claims 1 described liquid-hydraulic coupling switch; It is characterized in that; Two-position four-way valve (2-A) (2-B) is made up of valve body (2a) that comprises be uniformly distributed along the circumference 4 interfaces (2a1), (2a2), (2a3), (2a4) and the spool (2b) that comprises 2 curved channels (2b1), (2b2); Spool (2b) is spherical in shape or cylindrical; The inner chamber of valve body (2a) forms through machining with the outer surface of spool (2b) and cooperates, and spool (2b) can be around its rotational under external force drives, and 4 interfaces (2a1) on the valve body (2a), (2a2), (2a3), (2a4) can dock with two curved channels (2b1) on the spool (2b), 4 ports of (2b2) in twos; Spool (2b) is the moving half-twist of revolution under external force drives; Make 4 interfaces (2a1), (2a2), (2a3), (2a4) on the valve body (2a) just in time realize UNICOM's exchange: promptly concerning each interface, moving 90 ° of spool (2b) revolution, this interface are just from switching to another adjacent interface UNICOM with one of two interfaces that are adjacent UNICOM.
4. like claims 1 described liquid-hydraulic coupling switch; It is characterized in that; Pressurized container (1-A) (1-B) two ends of interior guide rod (4) is provided with position-limit mechanism (3); When the elastic diaphragm (5) that moves along guide rod (4) touched position-limit mechanism (3), two-position four-way valve (2-A) drive unit (2-B) moved immediately, makes spool (2b) half-twist of two-position four-way valve (2-A), (2-B).
5. like claims 1 described liquid-hydraulic coupling switch; It is characterized in that; Being positioned at pressurized container (1-A) can be discoid along the elastic diaphragm (5) that guide rod (4) moves (1-B); The pilot hole in its center portion (5a) internal diameter matches with guide rod (4) external diameter; Promote when making the flow of fluid of pressurized container (1-A) in (1-B) elastic diaphragm (5) thereupon together along guide rod (4) move and maintenance vertical with guide rod (4), the external profile diameter of elastic diaphragm (5) is slightly larger than pressurized container (1-A) internal diameter (1-B), thereby makes the peripheral edge portion of elastic diaphragm (5) be close to pressurized container (1-A) inwall (1-B).
6. like claims 1 described liquid-hydraulic coupling switch; It is characterized in that; Being positioned at pressurized container (1-A) can be to process with the elastic material of engineering plastics and so on along the elastic diaphragm (5) that guide rod (4) moves (1-B); Can be out of shape under external force, after external force is cancelled, just restore to the original state, thus make it can through pressurized container (1-A) (1-B) interface at two ends be installed to pressurized container (1-A) (1-B) on the interior guide rod (4).
7. like claims 1 described liquid-hydraulic coupling switch, it is characterized in that when its work, the travelling speed that is positioned at pressurized container (1-A) elastic diaphragm (5) (1-B) is 0.1～1.0m/s.
8. like claims 1 described liquid-hydraulic coupling switch, it is characterized in that this liquid-hydraulic coupling switch can singly be organized the work of device pattern, also can two or more sets device constellation work increase exchange capacity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100270088A CN102588355A (en) | 2012-02-08 | 2012-02-08 | Liquid-liquid pressure exchange device and application method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100270088A CN102588355A (en) | 2012-02-08 | 2012-02-08 | Liquid-liquid pressure exchange device and application method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102588355A true CN102588355A (en) | 2012-07-18 |
Family
ID=46477455
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100270088A Pending CN102588355A (en) | 2012-02-08 | 2012-02-08 | Liquid-liquid pressure exchange device and application method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102588355A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105540748A (en) * | 2016-02-02 | 2016-05-04 | 北京工业大学 | Pressure energy recovery device based on reciprocating liquid switches |
| CN105712437A (en) * | 2016-02-02 | 2016-06-29 | 北京工业大学 | Pressure energy recovering method based on reciprocating motion liquid switchers |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1429995A (en) * | 2003-01-24 | 2003-07-16 | 刘润海 | Fluid pressure exchange technique and fluid pressure exchange device |
| CN2605309Y (en) * | 2003-02-19 | 2004-03-03 | 林茂昌 | Reverse osmosis water-storing pressure cylinder |
| CN1702320A (en) * | 2005-06-17 | 2005-11-30 | 国家海洋局杭州水处理技术研究开发中心 | Double-cylinder hydraulic energy recovery device |
| CN1733615A (en) * | 2005-07-01 | 2006-02-15 | 天津大学 | Energy-saving reverse osmosis desalting process and device for seawater/brackish water |
| CN2775039Y (en) * | 2005-03-28 | 2006-04-26 | 程方 | Double tower type energy recovery device in reverse osmosis seawater desalting device |
| DE102009020932A1 (en) * | 2009-05-12 | 2010-11-18 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Pressure exchanging system comprises first and second pressure tubes with first and second chambers, where each first and second chamber is connected with inlet- and outlet line for filling and emptying the chambers |
-
2012
- 2012-02-08 CN CN2012100270088A patent/CN102588355A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1429995A (en) * | 2003-01-24 | 2003-07-16 | 刘润海 | Fluid pressure exchange technique and fluid pressure exchange device |
| CN2605309Y (en) * | 2003-02-19 | 2004-03-03 | 林茂昌 | Reverse osmosis water-storing pressure cylinder |
| CN2775039Y (en) * | 2005-03-28 | 2006-04-26 | 程方 | Double tower type energy recovery device in reverse osmosis seawater desalting device |
| CN1702320A (en) * | 2005-06-17 | 2005-11-30 | 国家海洋局杭州水处理技术研究开发中心 | Double-cylinder hydraulic energy recovery device |
| CN1733615A (en) * | 2005-07-01 | 2006-02-15 | 天津大学 | Energy-saving reverse osmosis desalting process and device for seawater/brackish water |
| DE102009020932A1 (en) * | 2009-05-12 | 2010-11-18 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Pressure exchanging system comprises first and second pressure tubes with first and second chambers, where each first and second chamber is connected with inlet- and outlet line for filling and emptying the chambers |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105540748A (en) * | 2016-02-02 | 2016-05-04 | 北京工业大学 | Pressure energy recovery device based on reciprocating liquid switches |
| CN105712437A (en) * | 2016-02-02 | 2016-06-29 | 北京工业大学 | Pressure energy recovering method based on reciprocating motion liquid switchers |
| CN105540748B (en) * | 2016-02-02 | 2017-12-29 | 北京工业大学 | Pressure energy retracting device based on reciprocating liquid switch |
| CN105712437B (en) * | 2016-02-02 | 2018-07-17 | 北京工业大学 | Pressure energy recovery method based on reciprocating liquid switch |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101782095B (en) | Differential energy recovery device and method for seawater desalination system | |
| US6579451B1 (en) | Water desalting installation through reverse osmosis with pressurized supply tanks in continuous kinetic cycle | |
| CN102563122B (en) | Continuously switchable four-way rotary valve | |
| CN101254407A (en) | Three-cylinder three piston type recuperator for reverse osmosis seawater desalination | |
| JPH029416A (en) | Concentration apparatus with reverse osmosis membrane | |
| US20080185045A1 (en) | Energy recovery apparatus and method | |
| CN110282108A (en) | A kind of hydraulic jet propulsion system of three-apexed rotor | |
| CN202646188U (en) | Liquid-liquid pressure exchange device | |
| CN102351277A (en) | Axially-sealed fluid pressure switcher with reciprocating sliders | |
| CN102588355A (en) | Liquid-liquid pressure exchange device and application method thereof | |
| CN104044082A (en) | Continuous water jet system of energy storing type grinding material slurry | |
| US9233340B1 (en) | Cylinder arrangement and method of use for energy recovery with seawater desalination | |
| CN104353359A (en) | Fluid reversing switching device and sea water desalination energy recycling device | |
| CN105692791B (en) | A kind of pressure energy recovery method based on rotary liquid switch | |
| CN101125693A (en) | Hydraulic pressure type double-piston single-cylinder pressure exchange energy reclaiming device | |
| CN102815766B (en) | Liquid pressure energy recovery device based on full rotation valves | |
| CN101456607B (en) | Water pressure driven switching valve group | |
| WO2018124920A1 (en) | Device for recovering concentrate energy in reverse osmosis plants | |
| AU2013356485B2 (en) | Rotary control valve for reverse osmosis feed water pump with energy recovery | |
| AU2011271388A1 (en) | Linear hollow spool valve | |
| CN107686145A (en) | Desalinization boost energy retracting device | |
| CN108458134A (en) | Multifunction ball valve | |
| CN106224595B (en) | Integrated six-way valve | |
| CN102527238A (en) | Rotary valve type energy recovery unit device | |
| EP3070329A1 (en) | Hydraulic axial piston pump having a floating rotatory drum |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120718 |