CN109316967B - Self-driven double-turntable type energy recovery device - Google Patents
Self-driven double-turntable type energy recovery device Download PDFInfo
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- CN109316967B CN109316967B CN201811189195.3A CN201811189195A CN109316967B CN 109316967 B CN109316967 B CN 109316967B CN 201811189195 A CN201811189195 A CN 201811189195A CN 109316967 B CN109316967 B CN 109316967B
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- rotary table
- stator
- turntable
- sleeve
- holes
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Links
- 238000011084 recovery Methods 0.000 title claims abstract description 27
- 230000007246 mechanism Effects 0.000 claims abstract description 28
- 238000007789 sealing Methods 0.000 claims abstract description 14
- 238000003825 pressing Methods 0.000 claims abstract description 8
- 239000002131 composite material Substances 0.000 claims abstract description 4
- 239000011148 porous material Substances 0.000 claims description 17
- 239000007788 liquid Substances 0.000 claims description 13
- 238000013016 damping Methods 0.000 claims description 5
- 239000007787 solid Substances 0.000 claims description 3
- 230000003068 static effect Effects 0.000 claims description 3
- 239000013535 sea water Substances 0.000 abstract description 15
- 239000012530 fluid Substances 0.000 abstract description 11
- 238000001223 reverse osmosis Methods 0.000 abstract description 8
- 238000010612 desalination reaction Methods 0.000 abstract description 5
- 238000006073 displacement reaction Methods 0.000 abstract description 4
- 239000012267 brine Substances 0.000 description 6
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 3
- 238000011033 desalting Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000011780 sodium chloride Substances 0.000 description 3
- 239000013505 freshwater Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
- B01D61/06—Energy recovery
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
- B01D61/025—Reverse osmosis; Hyperfiltration
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/08—Seawater, e.g. for desalination
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/10—Energy recovery
-
- 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
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Nanotechnology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Organic Chemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The self-driven double-turntable type energy recovery device comprises a stator mechanism and two turntable mechanisms which are symmetrically arranged at two ends of the stator mechanism and have identical structures, wherein a sealing cylinder body is arranged at the outer end of the turntable mechanism; the stator mechanism comprises a cylindrical stator, a plurality of through holes are uniformly distributed in the circumferential direction along the axis direction, the holes are three-section composite holes, the middle is a straight hole, and the two sides are symmetrical inclined holes; the rotary table mechanism consists of a rotary table, a rotary table sleeve, a cylinder body and a sleeve pressing disc; the stator, the cylinder body and the sealing cylinder body are sequentially and hermetically connected. The rotating component double turntables of the device rotate by means of fluid impact, the device does not need an external motor, the structure is simple, the energy recovery efficiency is high by adopting a positive displacement working principle, and the device can be applied to a pressure energy recovery system and also can be used for a reverse osmosis sea water desalination system.
Description
Technical Field
The invention relates to a pressure energy recovery device, in particular to a self-driven double-turntable type energy recovery device which is applied to a reverse osmosis sea water desalination system.
Background
The sea water desalting technology is a main means for solving the crisis of fresh water resources, wherein the reverse osmosis sea water desalting technology is the most widely applied desalting technology with the lowest water production cost. The high-pressure seawater enters the reverse osmosis membrane assembly and is separated into low-pressure fresh water and high-pressure brine. The energy recovery device can recover the residual pressure of the high-pressure brine, effectively reduces the energy consumption in the reverse osmosis seawater desalination system, and is an essential energy-saving device in the system.
The positive displacement energy recovery device can transmit the pressure energy of high-pressure brine to low-pressure seawater, and the energy recovery efficiency is as high as more than 90%. The rotary energy recovery device is a typical representative of a positive displacement energy recovery device, has the advantages of high energy recovery efficiency, simple device operation and the like, and is the most widely applied energy recovery device at present.
Chinese patent 200710056401.9 discloses a double-turntable coupling type pressure exchanger for a seawater or brackish water reverse osmosis desalination system and Chinese patent 201410182688.X discloses an electric-driven self-pressurization rotor type energy recovery device. The two patents realize the process of pressure exchange through synchronous rotation of the upper rotary table and the lower rotary table, but the rotation resistance moment of the two rotary tables is larger, an external motor is required to drive the rotary tables to rotate, and the structure is relatively complex.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides the self-driven double-turntable type energy recovery device, the rotating part double-turntable of the device rotates by means of fluid impact, an external motor is not needed, the structure is simple, the recovery efficiency is high, and the mixing degree of seawater and brine can be effectively reduced.
The technical scheme adopted for solving the technical problems is as follows: the rotary table mechanism comprises a stator mechanism and two rotary table mechanisms which are symmetrically arranged at two ends of the stator mechanism and have identical structures, wherein the outer end of the rotary table mechanism is provided with a sealing cylinder; the stator mechanism comprises a cylindrical stator, a plurality of through holes are uniformly distributed in the circumferential direction along the axis direction, the holes are three-section composite holes, the middle is a straight hole, and the two sides are symmetrical inclined holes; the rotary table mechanism consists of a rotary table, a rotary table sleeve, a cylinder body and a sleeve pressing disc, wherein the rotary table, the rotary table sleeve and the cylinder body are sequentially and coaxially arranged from inside to outside; the cylinder body is arranged at the outer side of the turntable sleeve, and at the positions with different heights on the symmetrical sides, two identical round holes are respectively formed and are coaxially arranged, and a sealing ring is arranged between the two round holes; two fan-shaped liquid collecting tanks with different depths are arranged on one side of the turntable and are communicated with the lateral round holes, and the solid area between the two fan-shaped liquid collecting tanks is larger than the area of one stator pore canal; the stator, the cylinder body and the sealing cylinder body are sequentially and hermetically connected.
Compared with the prior art, the self-driven double-turntable type energy recovery device is self-driven by hydraulic power, the stator mechanism is motionless, and the turntable mechanisms at the two ends rotate, so that the mixing degree of seawater and brine can be reduced; the device has the advantages of no power driving equipment, simple operation, symmetrical structure, simple manufacture, high energy recovery efficiency by adopting the positive displacement working principle, and applicability to a pressure energy recovery system and a reverse osmosis sea water desalination system.
Drawings
The invention will be further described with reference to the drawings and examples.
Fig. 1 is a full cross-sectional view of an embodiment of the present invention.
Fig. 2-1 is a perspective view of a stator half showing the layout and orientation of the channels in an embodiment of the invention.
Fig. 2-2 are two-dimensional expanded views of the center plane of the stator bore in an embodiment of the invention.
Fig. 3 is a full cross-sectional view of a rotor in an embodiment of the invention.
Fig. 4 is a cross-sectional view at A-A in fig. 3.
Wherein: 1. the stator comprises 1-1 parts of straight pore channels, 1-2 parts of inclined pore channels, 1-3 parts of static pressure grooves, 2 parts of turntables, 2-1 parts of fan-shaped liquid collecting grooves, 2-2 parts of fan-shaped rib plates, 2-3 parts of damping holes, 3 parts of turntable sleeves, 3-1 parts of circular rings, 4 parts of cylinders, 5 parts of sleeve pressure plates, 5-1 parts of annular grooves, 6 parts of sealing cylinders, 7 parts of gaskets, 8 parts of nuts, 9 parts of pull rods.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to fall within the scope of the invention.
Fig. 1 to 3 show a schematic structural diagram of a preferred embodiment of the present invention, and a self-driven double-turntable type energy recovery device in fig. 1 includes a stator mechanism and two turntable mechanisms with identical structures symmetrically disposed at two ends of the stator mechanism, wherein a sealing cylinder 6 is installed at an outer end of the turntable mechanism, and the stator 1, the cylinder 4 and the sealing cylinder 6 are sequentially connected through bolts and sealed by using rubber rings. The stator mechanism comprises a cylindrical stator 1, wherein a plurality of through holes (see fig. 2-1) which run along the axis direction are uniformly distributed in the circumferential direction of the stator 1, the holes are three-section composite (see the figure of the stator which is shown in fig. 2-2 and is unfolded along the circumference of the center line of the holes), the middle is a straight hole 1-1, two sides are symmetrical inclined holes 1-2, and preferably, the included angle between the inclined hole 1-2 and the straight hole 1-1 is 20-60 degrees; the cross section of the pore canal of the stator 1 in the circumferential direction can be circular or fan-shaped, and the number of the pore canal can be odd or even; screw holes are formed in the centers of two ends of the stator 1 and are in threaded connection with the pull rod 9. The rotary table mechanism consists of a rotary table 2, a rotary table sleeve 3, a cylinder 4 and a sleeve pressing plate 5, wherein the rotary table 2, the rotary table sleeve 3 and the cylinder 4 are sequentially and coaxially arranged from inside to outside, the sleeve pressing plate 5 is coaxially arranged on the rotary table sleeve 3, and the rotary table sleeve 3 and the sleeve pressing plate 5 are tightly pressed on the stator 1 by a gasket 7, a nut 8 and a pull rod 9. The cylinder body 4 is arranged at the outer side of the turntable sleeve 3, at the positions with different heights on the symmetrical sides, is respectively provided with two identical round holes and is coaxially arranged, and is used for guiding high-pressure fluid and low-pressure fluid to enter and exit the device respectively, and a sealing ring is arranged between the two round holes so as to prevent series flow between the high-pressure fluid and the low-pressure fluid. Referring to fig. 3, one side of the turntable 2 is provided with two fan-shaped liquid collecting tanks 2-1 with different depths and communicated with lateral round holes, and the solid area between the two fan-shaped liquid collecting tanks 2-1 is larger than the area of a pore canal of the stator 1 for isolating high-low pressure fluid; two circular rings 3-1 with larger than the circular holes are arranged on the inner side of the turntable sleeve 3, and fluid can be ensured to enter and exit when the turntable rotates. The end of the deeper fan-shaped liquid collecting groove 2-1 on the turntable 2 is provided with a damping hole 2-3 for guiding high-pressure fluid; a plurality of fan-shaped rib plates 2-2 (see fig. 4) are arranged at the front end opening of the fan-shaped liquid collecting groove 2-1 on the rotary table 2, so as to improve the impact force of fluid on the rotary table 2. The sleeve pressure plate 5 is provided with an annular groove 5-1 which is communicated with a damping hole 2-3 on the rotary disc 2; static pressure grooves 1-3 are formed on the end surfaces of two sides of the stator 1 and are used for improving the friction state between the stator 1 and the turntable 2. The outer diameter of the turntable 2 is 0.02-0.08 mm smaller than the inner diameter of the turntable sleeve 3; the height of the turntable 2 is 0.02 mm-0.06 mm lower than that of the turntable sleeve 3.
The working process comprises the following steps:
the high-pressure brine flowing out of the reverse osmosis membrane component enters the pore canal in the stator 1 from the inlet A through the fan-shaped liquid collecting groove 2-1 of the rotary table 2, the low-pressure seawater in the pore canal is pressurized, the pressurized seawater performs hydraulic impact on the rotary table 2 on the left side through the inclined pore canal 1-2, the rotary table 2 is driven to rotate in the rotary table sleeve 3, and then the pressurized seawater flows out of the device from the port B, so that the pressurizing process is completed. The low-pressure seawater enters the pore canal in the stator 1 from the inlet D on the left barrel 4 through the liquid collecting groove of the rotary table 2, the pressure-relief saline in the pore canal is discharged out of the pore canal of the stator 1, the pressure-relief saline performs hydraulic impact on the right rotary table 2 through the inclined pore canal 1-2, the rotary table 2 is driven to perform rotary motion, and then the pressure-relief saline flows out of the device from the port C, so that the pressure-relief process is completed; the fluid drives the turntable 2, so that the turntable 2 is guaranteed to continuously rotate, and the pressure exchange is continuously carried out.
The foregoing description is only a preferred embodiment of the present invention, and is not intended to limit the invention in any way, but any simple modification and equivalent variation of the above embodiment according to the technical spirit of the present invention falls within the scope of the present invention.
Claims (6)
1. A self-driven double-turntable type energy recovery device is characterized in that: the rotary table mechanism comprises a stator mechanism and two rotary table mechanisms which are symmetrically arranged at two ends of the stator mechanism and have identical structures, wherein the outer end of the rotary table mechanism is provided with a sealing cylinder body (6); the stator mechanism comprises a cylindrical stator (1), wherein a plurality of through holes are uniformly distributed in the circumferential direction along the axis direction of the stator (1), the holes are three-section composite holes, the middle is a straight hole (1-1), and the two sides are symmetrical inclined holes (1-2); the rotary table mechanism consists of a rotary table (2), a rotary table sleeve (3), a cylinder body (4) and a sleeve pressing plate (5), wherein the rotary table (2), the rotary table sleeve (3) and the cylinder body (4) are sequentially and coaxially arranged from inside to outside, the sleeve pressing plate (5) is coaxially arranged on the rotary table sleeve (3), and the rotary table sleeve (3) and the sleeve pressing plate (5) are pressed on the stator (1) by a gasket (7), a nut (8) and a pull rod (9); the cylinder body (4) is arranged at the outer side of the turntable sleeve (3), and two identical round holes are respectively formed at the positions of different heights at the symmetrical sides and are coaxially arranged, and a sealing ring is arranged between the two round holes; two fan-shaped liquid collecting tanks (2-1) with different depths are arranged on one side of the turntable (2) and are communicated with the lateral round holes, and the solid area between the two fan-shaped liquid collecting tanks (2-1) is larger than the area of a pore canal of one stator (1); the stator (1), the cylinder (4) and the sealing cylinder (6) are sequentially connected in a sealing way;
static pressure grooves (1-3) are formed in the end faces of two sides of the stator (1);
the end of the deeper fan-shaped liquid collecting groove (2-1) on the rotary table (2) is provided with a damping hole (2-3), and the front port of the fan-shaped liquid collecting groove (2-1) on the rotary table (2) is provided with a plurality of fan-shaped rib plates (2-2);
an annular groove (5-1) is formed in the sleeve pressure plate (5) and is communicated with a damping hole (2-3) in the rotary disc (2);
the outer diameter of the rotary table (2) is 0.02-0.08 mm smaller than the inner diameter of the rotary table sleeve (3); the height of the turntable (2) is 0.02 mm-0.06 mm lower than that of the turntable sleeve (3).
2. The self-driven double-turntable type energy recovery device according to claim 1, wherein: the included angle between the inclined pore canal (1-2) and the straight pore canal (1-1) is 20-60 degrees.
3. The self-driven double-turntable type energy recovery device according to claim 2, wherein: the cross section of the pore canal in the circumferential direction of the stator (1) is circular or fan-shaped.
4. A self-driven double-turntable energy recovery apparatus according to any one of claims 1 to 3, characterized in that: screw holes are formed in the centers of two ends of the stator (1), and the screw holes are in threaded connection with the pull rod (9).
5. A self-driven double-turntable type energy recovery device according to claim 1 or 2, characterized in that: the inner side of the turntable sleeve (3) is provided with two circular rings (3-1) which are larger than the circular holes.
6. The self-driven double-turntable type energy recovery device according to claim 1, wherein: the stator (1), the cylinder (4) and the sealing cylinder (6) are sequentially connected through bolts and are sealed by rubber rings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811189195.3A CN109316967B (en) | 2018-10-12 | 2018-10-12 | Self-driven double-turntable type energy recovery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811189195.3A CN109316967B (en) | 2018-10-12 | 2018-10-12 | Self-driven double-turntable type energy recovery device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109316967A CN109316967A (en) | 2019-02-12 |
| CN109316967B true CN109316967B (en) | 2024-02-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811189195.3A Active CN109316967B (en) | 2018-10-12 | 2018-10-12 | Self-driven double-turntable type energy recovery device |
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