CN101817573B - Electric double-action energy recycling device - Google Patents
Electric double-action energy recycling device Download PDFInfo
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- CN101817573B CN101817573B CN 201010143539 CN201010143539A CN101817573B CN 101817573 B CN101817573 B CN 101817573B CN 201010143539 CN201010143539 CN 201010143539 CN 201010143539 A CN201010143539 A CN 201010143539A CN 101817573 B CN101817573 B CN 101817573B
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Abstract
The invention relates to an electric double-action energy recycling device which comprises a device body, a left end cover and a right end cover, wherein a rotor which is uniformly distributed with a plurality of energy converting cavities is arranged in the device body; pistons are arranged in the energy converting cavities; both ends of a rotating shaft of the rotor are respectively connected with the end covers by bearings, and seal elements are respectively arranged between the rotating shaft and the end covers; thrust plates are arranged between the end covers and the device body; a high-pressure saline water inlet and a low-pressure saline water outlet are arranged on the left thrust plate; the high-pressure saline water inlet is communicated with a high-pressure inflow groove, and the low-pressure saline water outlet is communicated with a low-pressure outflow groove; a low-pressure seawater inlet and a high-pressure seawater outlet are arranged on the right thrust plate, the high-pressure seawater outlet is communicated with a high-pressure outflow groove, and the low-pressure seawater inlet is communicated with a low-pressure inflow groove; and the high-pressure inflow groove is communicated with the high-pressure outflow groove by the energy converting cavity to form a high-pressure passage, and the low-pressure inflow groove is communicated with the low-pressure outflow groove by the other energy converting cavity to form a low-pressure passage. The invention has the advantages of no radial force of the rotor, stable rotation and long service life of the rotor.
Description
Technical field
The present invention relates to a kind of energy recycle device, particularly a kind of energy recycle device that is used for reverse osmosis seawater desalination system.
Technical background
The reverse osmosis seawater desalting technology is to utilize high-pressure service pump that raw material seawater is pressurizeed; Make its pressure reach the reverse osmosis operation pressure and (be generally 5.0～7.0MPa); Make the seawater after the pressurization flow to the reverse osmosis membrane in the reverse osmosis membrane device then; The fresh water that sees through reverse osmosis membrane promptly becomes finished product water, and the brine that does not see through reverse osmosis membrane is then discharged from the upper reaches of film.The brine that is discharged from still has very high pressure, and this pressure is called as the brine overbottom pressure, if this part pressure can not be recycled, then the power consumption of desalination water per ton will be up to more than the 10KWh.
The equipment that reclaims brine overbottom pressure energy is called energy recycle device; Existing energy recycle device is to make high-pressure thick salt solution give a part of raw material seawater through recuperator with its propagation of pressure; Make this part raw material seawater obtain preliminary high pressure; Like this, raw material seawater only needs to do supercharging slightly through a suction booster again and can obtain operation pressure.
Existing energy recycle device comprises body; The body two ends are fixed with left end cap or right end cap respectively; Left end cap is provided with the low pressure brine outlet that the brine after the high pressure brine import that allows high-pressure thick salt solution to get into is done work with permission is discharged, the high pressure sea water outlet that the raw material seawater after right end cap is provided with the low pressure seawer inlet that allows the raw material seawater entering and allows supercharging flows out; Be provided with in the body one have a plurality of transformation of energy chamber rotor, the rotating shaft two ends of rotor are connected with end cap through bearing respectively, are provided with the Sealing that prevents the seawater leakage between rotating shaft and the right end cap; Be provided with the piston that it is divided into two separate sub-chambeies in the transformation of energy chamber; The high pressure brine import is communicated with through the outlet of transformation of energy chamber and high pressure sea water and forms high-pressure channel, and the low pressure brine outlet passes through wherein that another transformation of energy chamber is communicated with the formation low-pressure channel with the low pressure seawer inlet.
Its working procedure is: during original state, transformation of energy chamber a is communicated with high pressure brine import and high pressure sea water outlet, and transformation of energy chamber b is communicated with low pressure seawer inlet and low pressure brine outlet; Raw material seawater gets among the transformation of energy chamber b.Rotor rotation makes transformation of energy chamber a, b dystopy, and high-pressure thick salt solution gets among the transformation of energy chamber b through the high pressure brine import, through the acting of piston pushing tow raw material seawater, make raw material seawater obtain high pressure after, discharge through the high pressure sea water outlet; In this simultaneously, raw material seawater gets among the transformation of energy chamber a through the low pressure seawer inlet.Rotor is rotated further, and transformation of energy chamber a, b be dystopy once more, and raw material seawater gets among the transformation of energy chamber b, through the brine that the piston pushing tow has done work, it is discharged by the low pressure brine outlet; Simultaneously, high-pressure thick salt solution gets among the transformation of energy chamber a, and to the raw material seawater acting, the raw material seawater that obtains high pressure is discharged through the high pressure sea water outlet.Rotor rotates with step-by-step movement, and the continuous pushing tow raw material seawater of high-pressure thick salt solution makes it obtain high pressure, and the brine that raw material seawater will have been done work when getting into the transformation of energy chamber is discharged.
This energy recycle device has following shortcoming: 1, the adjacent setting of high-pressure channel and low-pressure channel, the radial force that high-pressure liquid and low-pressure fluid pressure difference produce is difficult to balance, influence even failure energy recovering device proper functioning.2, rotating shaft be sealed into high pressure sealing, difficulty is big and sealing effect is poor.3, high-pressure thick salt solution through piston with propagation of pressure to raw material seawater, the area of contact in piston and transformation of energy chamber is big, causes the loss in the energy transfer process big.
Summary of the invention
The radial force suffered for the rotating shaft that overcomes existing technology is big, and sealing difficulty is big, and the shortcoming that working life is short the invention provides a kind of rotating shaft and do not receive radial force, seals the electric double-action energy recycling device of reliable long service life.
Electric double-action energy recycling device comprises body, and the body two ends are fixed with left end cap or right end cap respectively;
Be provided with in the described body one be evenly equipped with a plurality of transformation of energy chamber rotor; Described transformation of energy is provided with the piston that it is divided into two separate sub-chambeies in the chamber; The rotating shaft two ends of described rotor are connected with end cap through bearing respectively, are respectively equipped with Sealing between described rotating shaft and the described end cap;
It is characterized in that: be provided with thrust plate between described end cap and the body; The low pressure brine that brine after left side thrust plate is provided with the high pressure brine import that allows the entering of high-pressure thick salt solution and allows acting is discharged exports; Described high pressure brine import be positioned at left thrust plate on, is communicated with according to the axle center symmetrically arranged high pressure influent stream groove of rotor, described low pressure brine outlet be positioned at left thrust plate on, the symmetrically arranged low pressure in axle center that accordings to rotor goes out chute and is communicated with;
The high pressure sea water outlet that raw material seawater after right thrust plate is provided with the low pressure seawer inlet that allows the raw material seawater entering and allows supercharging flows out; The outlet of described high pressure sea water be positioned at right thrust plate on, go out chute according to the symmetrically arranged high pressure in axle center of rotor and be communicated with, described low pressure seawer inlet be positioned at right thrust plate on, the axle center symmetrically arranged low pressure influent stream groove of accordinging to rotor is communicated with;
High pressure influent stream groove goes out chute through transformation of energy chamber and high pressure and is communicated with the formation high-pressure channel, and low pressure influent stream groove goes out chute through another transformation of energy chamber and low pressure and is communicated with the formation low-pressure channel.
Further, be provided with labyrinth collar between described rotor shaft and the thrust plate, described thrust plate is provided with the drainage trough that is communicated with described seal ring, and described drainage trough is communicated with low-pressure channel.
Further, described piston is a spherical piston.
Further, the rotating shaft of described rotor and stepper motor interlock.
Technical conceive of the present invention is: between end cap and body, set up thrust plate; The influent stream groove is set on thrust plate symmetrically, goes out chute, be symmetrical set, make the radial force of high-pressure liquid generation to cancel out each other, be the radial force that is symmetrical set, makes low-pressure fluid to produce between the low-pressure channel and cancel out each other thereby make to be between the high-pressure channel; There is not pressure difference between high-pressure liquid and the low-pressure fluid; Rotor is in state of equilibrium, stability of rotation, long service life all the time.
Between rotating shaft and thrust plate, labyrinth collar is set; Flow in the seal ring by the high pressure water that spills in the high-pressure channel; Again after elongated drainage trough drainage; Pressure descends and enters at last in the low-pressure channel, and high pressure sealing is transformed into low pressure seal, and the rotating shaft two ends only need use common Sealing can reach good sealing effect.
Select spherical piston for use, then between piston and the transformation of energy chamber for line contacts, area of contact is little, the resistance of high pressure brine pushing tow piston is little, the energy loss in the propagation of pressure process is low.
The rotating shaft two ends are connected with end cap through bearing respectively, guarantee the working clearance between thrust plate and the rotor, can obtain accurate axially locating.
The present invention has the following advantages: rotor does not receive radial force, stability of rotation, the long service life of rotor; Rotating shaft is low pressure seal, and is simple in structure, good sealing effect, and cost is low; Energy loss in the propagation of pressure process is low.
Description of drawings
Fig. 1 is the schematic representation of existing energy recycle device
Fig. 2 is a schematic representation of the present invention
Fig. 3 is the schematic representation of left thrust plate
Fig. 4 is the sealed structural representation of rotating shaft
Embodiment
With reference to accompanying drawing, further specify the present invention:
Electric double-action energy recycling device comprises body 1, and body 1 two ends are fixed with left end cap 2 or right end cap 3 respectively,
Be provided with in the described body 1 one be evenly equipped with a plurality of transformation of energy chamber 4a, 4b rotor 4; Be provided with the piston 41 that it is divided into two separate sub-chambeies in described transformation of energy chamber 4a, the 4b; Rotating shaft 42 two ends of described rotor 4 are connected with end cap through bearing respectively, described rotating shaft 42 and described end cap 2, are respectively equipped with Sealing 5 between 3;
Be provided with thrust plate 6,7 between described end cap 2,3 and the body; The low pressure brine that brine after left side thrust plate 6 is provided with the high pressure brine import that allows the entering of high-pressure thick salt solution and allows acting is discharged exports; Described high pressure brine import be positioned at left thrust plate 6 on, is communicated with according to axle center symmetrically arranged high pressure influent stream groove C, the E of rotor 4, described low pressure brine outlet be positioned at left thrust plate 6 on, the symmetrically arranged low pressure in axle center that accordings to rotor 4 goes out chute F, D is communicated with;
The high pressure sea water outlet that raw material seawater after right thrust plate 7 is provided with the low pressure seawer inlet that allows the raw material seawater entering and allows supercharging flows out; The outlet of described high pressure sea water be positioned at right thrust plate 7 on, go out chute according to the symmetrically arranged high pressure in axle center of rotor and be communicated with, described low pressure seawer inlet be positioned at right thrust plate 7 on, the axle center symmetrically arranged low pressure influent stream groove of accordinging to rotor is communicated with;
High pressure influent stream groove C, E go out chute through transformation of energy chamber and high pressure and are communicated with and form high-pressure channel, low pressure influent stream groove through another transformation of energy chamber and low pressure go out chute F, D is communicated with the formation low-pressure channel.
Described rotor shaft 42 and thrust plate 6, be provided with labyrinth collar 8 between 7, described thrust plate 6,7 is provided with the drainage trough 9 that is communicated with described seal ring 8, and described drainage trough 9 is communicated with low-pressure channel.
Described piston 41 is a spherical piston.
The rotating shaft 42 of described rotor 4 and stepper motor interlock.
Technical conceive of the present invention is: between end cap 2,3 and body 1, set up thrust plate 6,7; On thrust plate 6,7, the influent stream groove is set symmetrically, goes out chute, be symmetrical set, make the radial force of high-pressure liquid generation to cancel out each other thereby high-pressure channel is, low-pressure channel is the radial force that is symmetrical set, makes low-pressure fluid to produce and cancels out each other; There is not pressure difference between high-pressure liquid and the low-pressure fluid; Rotor 4 is in state of equilibrium, stability of rotation, long service life all the time.
At rotating shaft 42 and thrust plate 6, labyrinth collar 8 is set between 7; Flow in the seal ring 8 by the high pressure water that spills in the high-pressure channel; Again after 9 drainages of elongated drainage trough, pressure descends and to enter in the low-pressure channel at last; High pressure sealing is transformed into low pressure seal, and rotating shaft 42 two ends only need use common Sealing 5 can reach good sealing effect.
Select spherical piston 41 for use, then between piston 41 and transformation of energy chamber 4a, the 4b for line contacts, area of contact is little, the resistance of high pressure brine pushing tow piston is little, the energy loss in the propagation of pressure process is low.
The rotating shaft two ends are connected with end cap through bearing respectively, guarantee the working clearance between thrust plate and the rotor, can obtain accurate axially locating.
The described content of this specification embodiment only is enumerating the way of realization of inventive concept; Protection scope of the present invention should not be regarded as and only limit to the concrete form that embodiment states, protection scope of the present invention also reach in those skilled in the art conceive according to the present invention the equivalent technologies means that can expect.
Claims (4)
1. electric double-action energy recycling device, electric double-action energy recycling device comprises body, the body two ends are fixed with left end cap or right end cap respectively;
Be provided with in the described body one be evenly equipped with a plurality of transformation of energy chamber rotor; Described transformation of energy is provided with the piston that it is divided into two separate sub-chambeies in the chamber; The rotating shaft two ends of described rotor are connected with end cap through bearing respectively, are respectively equipped with Sealing between described rotating shaft and the described end cap;
It is characterized in that: be provided with thrust plate between described end cap and the body; The low pressure brine that brine after left side thrust plate is provided with the high pressure brine import that allows the entering of high-pressure thick salt solution and allows acting is discharged exports; Described high pressure brine import be positioned at left thrust plate on, is communicated with according to the axle center symmetrically arranged high pressure influent stream groove of rotor, described low pressure brine outlet be positioned at left thrust plate on, the symmetrically arranged low pressure in axle center that accordings to rotor goes out chute and is communicated with;
The high pressure sea water outlet that raw material seawater after right thrust plate is provided with the low pressure seawer inlet that allows the raw material seawater entering and allows supercharging flows out; The outlet of described high pressure sea water be positioned at right thrust plate on, go out chute according to the symmetrically arranged high pressure in axle center of rotor and be communicated with, described low pressure seawer inlet be positioned at right thrust plate on, the axle center symmetrically arranged low pressure influent stream groove of accordinging to rotor is communicated with;
High pressure influent stream groove goes out chute through transformation of energy chamber and high pressure and is communicated with the formation high-pressure channel, and low pressure influent stream groove goes out chute through another transformation of energy chamber and low pressure and is communicated with the formation low-pressure channel.
2. electric double-action energy recycling device as claimed in claim 1; It is characterized in that: be provided with labyrinth collar between described rotor shaft and the thrust plate; Described thrust plate is provided with the drainage trough that is communicated with described seal ring, and described drainage trough is communicated with low-pressure channel.
3. according to claim 1 or claim 2 electric double-action energy recycling device, it is characterized in that: described piston is a spherical piston.
4. electric double-action energy recycling device as claimed in claim 3 is characterized in that: the rotating shaft of described rotor and stepper motor interlock.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010143539 CN101817573B (en) | 2010-04-09 | 2010-04-09 | Electric double-action energy recycling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010143539 CN101817573B (en) | 2010-04-09 | 2010-04-09 | Electric double-action energy recycling device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101817573A CN101817573A (en) | 2010-09-01 |
| CN101817573B true CN101817573B (en) | 2012-12-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201010143539 Expired - Fee Related CN101817573B (en) | 2010-04-09 | 2010-04-09 | Electric double-action energy recycling device |
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| Country | Link |
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| CN (1) | CN101817573B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20160146229A1 (en) * | 2014-11-26 | 2016-05-26 | Energy Recovery, Inc. | System and method for rotors |
| US10473159B2 (en) | 2014-12-05 | 2019-11-12 | Energy Recovery, Inc. | Hydrodynamic bearing features |
| CN106594009B (en) * | 2016-12-31 | 2018-04-06 | 杭州水处理技术研究开发中心有限公司 | Outer driving rotator type energy recycle device |
| CN116081776B (en) * | 2023-04-10 | 2023-06-27 | 广东海洋大学 | Spring reset type residual pressure energy recovery device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1272166A (en) * | 1997-10-01 | 2000-11-01 | 莱夫·J·海于格 | Pressure exchanger |
| CN1994905A (en) * | 2007-01-04 | 2007-07-11 | 天津大学 | Double-dial coupled type pressure exchanger for sea water or brine reverse osmosis desalination system |
| CN101440828A (en) * | 2008-12-18 | 2009-05-27 | 杭州帕尔水处理科技有限公司 | Pressure exchanger |
-
2010
- 2010-04-09 CN CN 201010143539 patent/CN101817573B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1272166A (en) * | 1997-10-01 | 2000-11-01 | 莱夫·J·海于格 | Pressure exchanger |
| CN1994905A (en) * | 2007-01-04 | 2007-07-11 | 天津大学 | Double-dial coupled type pressure exchanger for sea water or brine reverse osmosis desalination system |
| CN101440828A (en) * | 2008-12-18 | 2009-05-27 | 杭州帕尔水处理科技有限公司 | Pressure exchanger |
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| Publication number | Publication date |
|---|---|
| CN101817573A (en) | 2010-09-01 |
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Granted publication date: 20121212 |