CN107398177A - External-rotor-type pressure exchanger - Google Patents
External-rotor-type pressure exchanger Download PDFInfo
- Publication number
- CN107398177A CN107398177A CN201610367912.1A CN201610367912A CN107398177A CN 107398177 A CN107398177 A CN 107398177A CN 201610367912 A CN201610367912 A CN 201610367912A CN 107398177 A CN107398177 A CN 107398177A
- Authority
- CN
- China
- Prior art keywords
- central stator
- outer rotor
- opening
- fluid
- passage
- 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.)
- Granted
Links
- 239000012530 fluid Substances 0.000 claims abstract description 43
- 230000037361 pathway Effects 0.000 claims abstract description 24
- 238000000034 method Methods 0.000 claims description 11
- 239000007788 liquid Substances 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 5
- 239000003082 abrasive agent Substances 0.000 claims description 4
- 239000004677 Nylon Substances 0.000 claims description 2
- 238000005452 bending Methods 0.000 claims description 2
- 239000011248 coating agent Substances 0.000 claims description 2
- 238000000576 coating method Methods 0.000 claims description 2
- 230000002045 lasting effect Effects 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 229920001778 nylon Polymers 0.000 claims description 2
- 230000001050 lubricating effect Effects 0.000 claims 1
- 230000002093 peripheral effect Effects 0.000 claims 1
- 239000012267 brine Substances 0.000 description 5
- 239000013535 sea water Substances 0.000 description 5
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 5
- 238000010612 desalination reaction Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000001223 reverse osmosis Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000008358 core component Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004891 communication 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
- 239000002360 explosive Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000002352 surface water Substances 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
-
- 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
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
External-rotor-type pressure exchanger, for transmitting pressure energy from high pressure first fluid to low pressure second fluid to provide the second fluid of pressurization, the pressure exchanger includes：Central stator and the outer rotor turned round outside the central stator；The outer rotor has no less than two generally axially through the passage of outer rotor extension, the passage has the first opening in described one end of outer rotor medial surface, there is the second opening in described another end of outer rotor medial surface, the opening is spaced apart along the length direction of the medial surface of the outer rotor；The central stator has two or more entries and two or more vent pathways, and the passage opening is arranged to：When the outer rotor first passage distal opening is aligned with the entry opening in a central stator, another distal opening of passage is also aligned with the vent pathway opening on the stator.
Description
Technical field
The present invention relates to a kind of rotary pressure transfer device, the first high-pressure fluid and the second low-pressure fluid hydraulic communication wherein in outer rotor simultaneously transmit pressure between the fluids and produce the high velocity jet stream of second fluid.It is more particularly related to a kind of rotary pressure transfer device, motionless using central stator, the mode of outer rotor rotation.
Background technology
Reverse osmosis membrane desalinization generally uses in countries in the world, and China had grown a lot in recent years, from now on also by as the mainstream technology of China's desalinization industry.
Energy recycle device is one of key equipment of reverse osmosis seawater desalination system, to system operation energy consumption being greatly reduced and to make water cost most important.Energy recycle device can be divided into two classes according to operation principle：Hydraulic turbine formula and positive displacement.The former is with the HTC (Hydraulic TurboCharger) of PEI companies of the U.S. for representative, it usually needs passes through " pressure energy of one shaft work of pressure energy one " two step conversion processes, energy recovery efficiency only has 50% one 75%.The latter only needs to be up to 90%-95% by " pressure energy of a pressure energy one " step conversion process, energy recovery efficiency, turn into the emphasis of domestic and international research and extension then with the PX (PressureExchanger) of ERI companies of the U.S. for representative.
In for water desalination industry, particularly for the use of pressure exchanger being well-known in the reverse osmosis process in sea-water reverse osmose desalination industry.For example, a kind of rotary positive displacement pressure exchanger is disclosed in United States Patent (USP) 7,251,557.But present applicant has confirmed that existing rotary positive displacement pressure exchanger is expensive, unit treating capacity is small, and difficulty of processing is high.
Embodiments of the invention are sought to provide a kind of external-rotor-type pressure exchanger, and the pressure exchanger can overcome or at least alleviate one or more defects of previously mentioned pressure exchanger.
The content of the invention
A kind of pressure exchanger, the pressure exchanger are used to transmit pressure energy from high pressure first fluid to low pressure second fluid to provide the second fluid of pressurization, and the pressure exchanger includes：Central stator and the outer rotor turned round outside the central stator；The outer rotor is similar to circle ring column, the outer rotor has no less than two generally axially through the passage of outer rotor extension, the passage has the first opening in described one end of outer rotor medial surface, there is the second opening in described another end of outer rotor medial surface, the opening is spaced apart along the length direction of the medial surface of the outer rotor；The central stator is similar to cylinder, the central stator has two or more entries and two or more vent pathways, the entry has entry opening in the lateral surface of the central stator, the vent pathway has vent pathway opening in the lateral surface of the central stator, and the passage opening is arranged to：When the outer rotor first passage distal opening is aligned with the entry opening in a central stator, another distal opening of passage is also aligned with the vent pathway opening on the stator, and the entry opening of the central stator and each vent pathway opening pass through the medial surface of the outer rotor and the sealing area at the central stator lateral surface lasting seals each other during operation.
Thus, during the outer rotor turns round, during the rotor every revolution, the access portal at least once alternately with the vent pathway opening portion in the entry opening in a central stator and the relative central stator or being aligned completely, and then with the entry opening portion in the vent pathway opening in one central stator and the relative central stator or being aligned completely, so as at least supply once the high pressure first fluid to each passage and at least discharge the second fluid once to pressurize.
It is a kind of to be used to pressure energy being delivered to low pressure second fluid from high pressure first fluid to provide the method for the second fluid of pressurization, it the described method comprises the following steps：
The outer rotor of similar circle ring column is installed in rotation on outside the central stator of similar cylinder, and there are at least two passages, the passage generally passes through between the opening positioned at the outer rotor medial surface along the rotor axial；Central stator is arranged in the shell,The central stator lateral surface has smooth surface area,So that the medial surface border of the lateral surface of the central stator and the outer rotor and slidingly and sealingly coordinating with the medial surface,The central stator has the multiple entries and multiple vent pathways in the lateral surface region openings,High pressure first fluid is fed to the entry in a central stator,The second fluid to be pressurizeed simultaneously from the vent pathway discharge of the alignment in the central stator of the opposite end,And,The outer rotor is set to be turned round around its axis,Therefore the vent pathway opening portion in the entry opening and the central stator described in the rotor every revolution described in access portal in central stator or alignment is at least once completely,Thus because each passage fills and discharges at least once,So second liquid of the pressurization of rotor every revolution discharge increase volume.
Described pressure exchanger, it is characterized in that, the central stator is fixed, the outer rotor turns round around central stator, using lateral inflow rather than both ends of the surface water intake mode, as long as ensure the matching precision of central stator lateral surface and outer rotor medial surface, to both ends of the surface perpendicularity without particular/special requirement, so as to reduce machining needs.
One side outer rotor form can increase driving moment relative to internal rotor form.On the other hand, tactical diameter directly affects mechanical processing difficulty, in the case of identical tactical diameter, because, without constraint, outer rotor can be done bigger, so as to increase unit treating capacity outside outer rotor.
Brief description of the drawings
Fig. 1 is the cross section view of pressure exchanger according to an embodiment of the invention；
Fig. 2 is the explosive view of the pressure exchanger；
Fig. 3 is the three-dimensional view of the pressure exchanger core component outer rotor；
Fig. 4 is the three-dimensional view of the pressure exchanger core component central stator；
Fig. 5 is horizontal cross of the pressure exchanger at outer rotor openings, shows the schematic diagram of fluid driving outer rotor rotation；
Embodiment
Fig. 1 shows the pressure exchanger for pressure to be transferred to low-pressure fluid from high-pressure fluid.The pressure exchanger 1 includes central stator 4 and the outer rotor 3 turned round outside the central stator 4, central stator 4 and outer rotor 3 are placed in shell 2, end cap 5 and the bolt 12 of end cap 6,13 and sealing ring 16,17 fix and seal with shell 2, end cap 5 and end cap 6 are fixed and sealed with central stator 4 with dowel hole 19 and sealing ring 14,15.Central stator 4 passes through end cap 5 and end cap 6, respectively there are a pair of outlets and inlet duct in both ends, each outlet corresponds to corresponding vent pathway entry with inlet duct, such as outlet conduit 8 and the corresponding vent pathway 21 of inlet duct 7 and entry 20, outlet conduit 9 and the corresponding vent pathway 22 of inlet duct 10 and entry 23, using the pressure exchanger 1, by rotation of the outer rotor 3 outside the central stator 4, pressure is transferred to low-pressure fluid from high-pressure fluid.
Such as, in running, the high pressure brine of reflexive osmosis operation is fed to the inlet duct 7 at the upper end of device in the future under e.g., from about 550psig pressure, low pressure seawater is supplied under about 30psig pressure, it is fed to by pumping at the lower end of device and enters pipeline 10, the liquid flow that the path 20,23 in central stator 4 enters can turns round outer rotor, as is known in the art, most of driving force is provided by high pressure brine.High pressure brine, when rotor turns round into the upper end of each passage 18 on outer rotor, highly pressurised liquid is fed to the passage communicated therewith from the entering path 20 of inlet duct 7；This causes the liquid of same amount of such as seawater under about 30psig pressure by the entering path 23 of pipeline 10 simultaneously.The discharge stream entering path 22 for the second liquid (i.e. seawater) being now pressurized, is discharged by pipeline 9.The discharge stream entering path 21 of the high pressure brine (effluent brine) after pressure transmission is completed simultaneously, is discharged by pipeline 8.And repeat process Infinite Auto as described above.Said process recurs for the multi-channel 18 in outer rotor 3.Each passage 18 can be provided with diaphragm or sliding seal, to avoid the contact between two kinds of fluids.
It will be appreciated by persons skilled in the art that for the housing 12 part relative to the fixation and sealing of the miscellaneous part of the housing 12, various methods can be used, and the above method is within the scope of the present invention.
With reference to figure 1 and Fig. 3, multiple similar passages 18 in the outer rotor 3 are around radiuses such as rotary shafts and equiangularly spaced are distributed, each passage 18 is to the opening 20,22 inside bending, so that the direction that fluid enters and leaves the passage 18 changes, due to being outer rotor, and it is derived from the rotation that larger moment of torsion is used to drive outer rotor 3.
The driving force of the outer rotor 3 can be fed or substituted by machinery and/or electric power means.
The outer rotor 3 and central stator 4 can make of pure ceramic-like high-abrasive material, can also with metal either the material such as nylon by friction surface coating or bushing ceramic-like high-abrasive material be made.
2 or more passage aisles can be subdivided into the passage 18, are so advantageous to improve degree of mixing.
In addition; it will be understood by those skilled in the art that; port for the integer multiple of the port number described in preferred embodiment is within the scope of the present invention, it is therefore an objective to solves the problems, such as out-of-balance force, and can increase fluid pressure exchange times in a swing circle.
Claims (9)
1. a kind of pressure exchanger, the pressure exchanger is used to transmit pressure energy from high pressure first fluid to low pressure second fluid to provide pressurization
Second fluid, the pressure exchanger include：Central stator and the outer rotor turned round outside the central stator；The outer rotor is similar to annulus post
Body, the outer rotor have no less than one generally axially through the passage of outer rotor extension, and the passage is in the outer rotor medial surface
One end has the first opening, has the second opening in described another end of outer rotor medial surface, the opening is along the outer rotor
The length direction of side is spaced apart；The central stator similar to cylinder, the central stator have two or more entries and two or
More vent pathways, the entry have entry opening in the lateral surface of the central stator, and the vent pathway is in the central stator
Lateral surface has vent pathway opening, and the passage opening is arranged to：The outer rotor first passage distal opening and entering in a central stator
During mouth passage opening alignment, another distal opening of passage is also aligned with the vent pathway opening in the central stator, the institute of the central stator
State entry opening and each vent pathway opening during operation by the medial surface of the outer rotor with the central stator lateral surface
Sealing area lasting seals each other.
Thus, the outer rotor turn round during, during the rotor every revolution, the access portal at least once alternately with described in one
Entry opening in central stator and the vent pathway opening portion in the relative central stator or completely alignment, and then with it is one
Vent pathway opening in central stator and the entry opening portion in the relative central stator or completely alignment, so as to each described logical
Road at least supplies once the high pressure first fluid and at least discharges the second fluid once to pressurize.
2. pressure exchanger as claimed in claim 1, it is characterised in that the central stator is fixed, and the outer rotor surrounds central stator
Revolution.
3. pressure exchanger according to claim 1, it is characterised in that be positioned to the passage opening in the central stator essentially radially
, thus, fluid radial inflow is guided when fluid enters the passage opening, guide fluid to radially flow out when fluid leaves the passage opening.
4. pressure exchanger as claimed in claim 3, it is characterised in that the institute in one central stator that the high pressure first fluid flows through
Entry is stated to bend to the open interior, it is described to be bent to form the orientation fluid flowed in the outer rotor passage；And the outlet of the alignment leads to
Road also has similar bending, so that the direction that fluid enters and leaves the passage changes, then turns round the outer rotor.
5. according to the pressure exchanger any one of claim 1-4, it is characterised in that the outer rotor has multiple around rotation Axial and radial
The similar passage of distribution.
6. pressure exchanger according to claim 5, it is characterised in that the passage is around the radius such as rotary shaft and equiangularly spaced is distributed.
7. pressure exchanger as claimed in claim 1, it is characterised in that the central stator has two outside cylinder bearing-surfaces spaced apart, institute
Stating between two outside cylinder bearing-surfaces has peripheral groove, and the groove keeps the storage tank of the fluid for lubricating the supporting surface.
8. pressure exchanger as claimed in claim 1, it is characterised in that outer rotor and central stator are placed in shell, and the outer rotor is with
Heart stator can make of pure ceramic-like high-abrasive material, can also with metal either the material such as nylon pass through friction surface coating or bushing ceramic-like
High-abrasive material is made.
9. a kind of be used to pressure energy being delivered to low pressure second fluid from high pressure first fluid to provide the method for the second fluid of pressurization, methods described
Comprise the following steps：
The outer rotor of similar circle ring column is installed in rotation on outside the central stator of similar cylinder, and there are at least two passages, it is described logical
Road generally passes through between the opening positioned at the outer rotor medial surface along the rotor axial；Central stator is arranged in the shell, it is described
Central stator lateral surface has smooth surface area so that the medial surface border of the lateral surface of the central stator and the outer rotor and with it is described interior
Side slidingly and sealingly coordinates, and the central stator has the multiple entries and multiple vent pathways in the lateral surface region openings, by height
Pressure first fluid is fed to the entry in a central stator, while from the row of the alignment in the central stator of the opposite end
The second fluid of path discharge pressurization is put, and, the outer rotor is turned round around its axis, therefore access portal described in the rotor every revolution
Vent pathway opening portion in entry opening and the central stator in the central stator or completely alignment at least once, thus due to every
Individual passage is filled and discharged at least once, so the second liquid of the pressurization of rotor every revolution discharge increase volume.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610367912.1A CN107398177B (en) | 2016-05-19 | 2016-05-19 | External rotor type pressure exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610367912.1A CN107398177B (en) | 2016-05-19 | 2016-05-19 | External rotor type pressure exchanger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107398177A true CN107398177A (en) | 2017-11-28 |
| CN107398177B CN107398177B (en) | 2023-11-17 |
Family
ID=60389393
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610367912.1A Active CN107398177B (en) | 2016-05-19 | 2016-05-19 | External rotor type pressure exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107398177B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108005865A (en) * | 2017-12-03 | 2018-05-08 | 国家***天津海水淡化与综合利用研究所 | Radial rotor formula energy recycle device |
| CN115210478A (en) * | 2020-02-13 | 2022-10-18 | 等压策略公司 | Pressure exchanger for hydraulic fracturing |
| CN116177675A (en) * | 2023-03-28 | 2023-05-30 | 广东海洋大学 | Fluid residual pressure energy recovery device and sea water desalination system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101568733A (en) * | 2006-10-04 | 2009-10-28 | 能量回收股份有限公司 | Rotary pressure transfer device |
| CN102553443A (en) * | 2012-01-17 | 2012-07-11 | 浙江大学 | Misalignment channel autorotation hydraulic rotary piston supercharger |
| CN102725538A (en) * | 2009-11-24 | 2012-10-10 | Ghd私人有限公司 | Pressure exchanger |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB680358A (en) * | 1950-01-06 | 1952-10-01 | George Jendrassik | Improvements in or relating to gas pressure exchangers |
| US4174925A (en) * | 1977-06-24 | 1979-11-20 | Cedomir M. Sliepcevich | Apparatus for exchanging energy between high and low pressure systems |
| ES2383394B1 (en) * | 2007-10-05 | 2013-05-07 | Energy Recovery, Inc. | ROTARY PRESSURE TRANSFER DEVICE. |
-
2016
- 2016-05-19 CN CN201610367912.1A patent/CN107398177B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101568733A (en) * | 2006-10-04 | 2009-10-28 | 能量回收股份有限公司 | Rotary pressure transfer device |
| CN102725538A (en) * | 2009-11-24 | 2012-10-10 | Ghd私人有限公司 | Pressure exchanger |
| CN102553443A (en) * | 2012-01-17 | 2012-07-11 | 浙江大学 | Misalignment channel autorotation hydraulic rotary piston supercharger |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108005865A (en) * | 2017-12-03 | 2018-05-08 | 国家***天津海水淡化与综合利用研究所 | Radial rotor formula energy recycle device |
| CN115210478A (en) * | 2020-02-13 | 2022-10-18 | 等压策略公司 | Pressure exchanger for hydraulic fracturing |
| CN115210478B (en) * | 2020-02-13 | 2023-12-22 | 等压策略公司 | Pressure exchanger for hydraulic fracturing |
| CN116177675A (en) * | 2023-03-28 | 2023-05-30 | 广东海洋大学 | Fluid residual pressure energy recovery device and sea water desalination system |
| CN116177675B (en) * | 2023-03-28 | 2023-09-01 | 广东海洋大学 | Fluid residual pressure energy recovery device and sea water desalination system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107398177B (en) | 2023-11-17 |
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Address after: 315000 017 Exhibition Road 128, Jiangdong District, Ningbo, Zhejiang (7-82-7) Applicant after: Ningbo weak sea Intelligent Technology Co.,Ltd. Address before: 315000 017 Exhibition Road 128, Jiangdong District, Ningbo, Zhejiang (7-82-7) Applicant before: NINGBO ZEZE ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. |
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