CN102734239A - Energy transfer actuator of suspension piston - Google Patents
Energy transfer actuator of suspension piston Download PDFInfo
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- CN102734239A CN102734239A CN2011100916194A CN201110091619A CN102734239A CN 102734239 A CN102734239 A CN 102734239A CN 2011100916194 A CN2011100916194 A CN 2011100916194A CN 201110091619 A CN201110091619 A CN 201110091619A CN 102734239 A CN102734239 A CN 102734239A
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- piston
- cylinder cover
- energy transfer
- pipeline
- cavity
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- 238000012546 transfer Methods 0.000 title claims abstract description 34
- 239000000725 suspension Substances 0.000 title abstract 3
- 238000007789 sealing Methods 0.000 claims description 6
- 239000007788 liquid Substances 0.000 abstract description 25
- 230000008901 benefit Effects 0.000 abstract description 5
- 238000012423 maintenance Methods 0.000 abstract description 5
- 239000002699 waste material Substances 0.000 abstract description 3
- 230000005484 gravity Effects 0.000 abstract 3
- 239000013535 sea water Substances 0.000 description 51
- 239000012267 brine Substances 0.000 description 31
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 31
- 238000001223 reverse osmosis Methods 0.000 description 20
- 238000010612 desalination reaction Methods 0.000 description 13
- 239000013505 freshwater Substances 0.000 description 9
- 238000013461 design Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 238000005265 energy consumption Methods 0.000 description 6
- 239000012528 membrane Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 238000011084 recovery Methods 0.000 description 4
- 230000011664 signaling Effects 0.000 description 4
- 238000005457 optimization Methods 0.000 description 3
- 210000005239 tubule Anatomy 0.000 description 3
- 230000002950 deficient Effects 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000012266 salt solution Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000003889 chemical engineering Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011033 desalting Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The invention discloses an energy transfer actuator of a suspension piston. The energy transfer actuator of the suspension piston comprises a cavity piston 6, a cylinder sleeve 61, an upper cylinder cover 65 and a lower cylinder cover 67, wherein an exchangeable adjusting ring 62 is arranged between an upper piston plane 661 and a lower piston plane 662 of the cavity piston 6, and the cylinder sleeve 61, the upper cylinder cover 65 and the lower cylinder cover 67 tightly fix the cavity piston 6 after wrapping the cavity piston 6. The action of the adjusting 62 is adjusting the specific gravity of the overall space of the cavity piston 6 between the specific gravity of work liquid medium and the specific gravity of waste high-pressure liquid; the structure has the advantages that a piston rod is not needed for supporting; and the cavity piston 6 can suspend between two-phase liquid, and any seal friction resistance power consumption and hidden trouble of maintenance are removed. An inner contact 63 is arranged at the inner wall of the upper cylinder cover 65, and the inner contact is connected with an external signal wire 64 led from the outer side of the upper cylinder cover 65. The action of the inner contact 63 is that a control valve switches more directly and quickly.
Description
Technical field
The invention belongs to energy transfer equipment field, be specifically related in the reverse osmosis seawater desalination system a kind of suspended piston energy transfer final controlling element about apparatus for energy recovery.
Background technique
Energy transfer is found everywhere in field of chemical engineering, especially liquid is carried out pressure-exchange.In Chemical Manufacture, often there are some waste liquids before discharging, also to possess suitable high pressure, can not cause very big waste if be not used.Can from discarded high-pressure liquid, obtain the in advance supercharging of energy, can save a large amount of energy consumption costs thus, realize the purpose of energy-saving and emission-reduction as liquid working medium.Along with scientific and technological progress, population is increasing, and people are also strong day by day to the hope of ocean development, and desalination of sea water is handled day by day and popularized, and the energy consumption cost of desalination of sea water receives special concern.
The way of distillation is adopted in early stage desalination of sea water, and like multi-stage flash evaporation technology, energy consumption is only built the very low area of energy cost in usually at 9.0kWh/m3, like Middle East oil state, or the available area of used heat is arranged.
The reverse osmosis seawater desalting technology dropped into and used the seventies in 20th century, through updating.The process energy consumption 6.0kWh/m3 of the most reverse osmosis seawater desalination systems that built up in the past from the beginning of the eighties; Energy consumption 3.0kWh/m3 by now; Its topmost improvement is that the Energy Efficient of the high-pressure thick salt solution after handling is recycled; Therefore, energy recovery efficiency has become to reduce the key of desalination of sea water cost.
World today's energy transfer actuating equipment that liquid energy is recycled in the desalination of sea water field mainly contains following three kinds:
1, traditional piston hydraulic cylinder similar plunger pump; Advantage is that liquid working medium does not directly contact with discarded highly pressurised liquid; Peak efficiency can reach 95%, and the piston of shortcoming hydraulic cylinder structure and piston rod self all has the difficulty of the reciprocation sealing technology of very big friction power loss, particularly piston rod to reach ideal effect; Practical efficiency often is lower than 90%, and particularly frictional loss causes that equipment downtime is frequent, maintenance cost is high.The patent No.: 201010122952.2, China's patent of invention of announcing on July 21st, 2010: be used for the differential energy recovery device and the method for seawater desalination system, just belong to the conventional piston hydraulic cylinder structure;
2, turbine---the energy transfer equipment of water pump combination; Advantage is that liquid working medium does not directly contact with discarded highly pressurised liquid; And can adapt to big flow energy transfer; But the peak efficiency of its unit also is lower than 75%, so the energy transfer equipment unit efficiency of combination generally has only 40%-55% like this;
3, U.S. energy recovery company (ERI) release pressure exchange energy reclaiming device (PressureExchanger) in 1997, the principle switching energy of utilization positive displacement.Advantage has not had the mechanical motion part, and the highest reuse efficiency of its tubule footpath long tube structure can reach 95%.Shortcoming is that liquid working medium directly contacts with discarded highly pressurised liquid, can only be limited to and be applied in the liquid working medium occasion identical with discarded highly pressurised liquid, and have big flow tubule footpath energy transfer, and its pipeline energy consumption is big; And for the energy transfer of bassoon gauge structure, flour mixed with adulterants is difficult to control, and its efficient is obviously low, and Transfer Quality descends severe, and practical efficiency often is lower than 85%.General a plurality of tubules footpath long tube that adopts is parallelly connected, and the system that seems is huge, and the construction investment complicacy also is difficult to management coordination.
Summary of the invention
The purpose of this invention is to provide a kind of suspended piston energy transfer final controlling element; Can remedy the defective of existing technology; Can accomplish the overbottom pressure energy of high efficiente callback reverse osmosis seawater desalination system processing procedure mesohigh brine, can accomplish that again the energy transfer actuating equipment keeps in repair less, even avoid maintenance.
To achieve these goals; The present invention provides following technological scheme: a kind of suspended piston energy transfer final controlling element; Comprise that cavity piston 6, cylinder sleeve 61, upper cylinder cover 65 reach cylinder cap 67 down; A removable Adjusting ring 62 is arranged between plane 661 and the piston lower plane 662 on the piston of described cavity piston 6, and plane 661 and 662 sealings of piston lower plane combine on the two ends of Adjusting ring 62 and the piston; Cylinder sleeve 61 is sealing and fixing with upper cylinder cover 65 and after cylinder cap 67 wraps up cavity piston 6 down.The effect of Adjusting ring 62 is to let the proportion of cavity piston 6 overall spaces between the proportion of the proportion of liquid working medium and discarded highly pressurised liquid; The benefit of this structure is to need not piston rod to support; Cavity piston 6 just can be suspended between the two phase liquid self, eliminates any seal friction resistance power consumption and maintenance hidden danger.
As further optimization: upper cylinder cover 65 inwalls are provided with contact 63 in, are connected to an outer signal line 64 and draw from upper cylinder cover 65 outsides; There is perforate at upper cylinder cover 65 centers, external pipeline 66; There is perforate at following cylinder cap 68 centers, external pipeline 67.The effect of interior contact 63 makes the switching of adjusting control valve more direct, quick.Cooperate synchronic command guide line 149 with peace and quiet seawater adjusting control valve 14 and brine adjusting control valve 19 overlap joints, guaranteed system synchronization, accurately control execution.Pipeline 66 leads to peace and quiet seawater, and pipeline 67 leads to brine.
As further optimization: between the interior circular diameter of the outside diameter of cavity piston 6 and cylinder sleeve 61 is gapped, between one of 1/50th to two percentage of the monolateral radial dimension in gap circular diameter in cylinder sleeve 61.The monolateral radial dimension in gap generally is set at the interior circular diameter of centesimal cylinder sleeve 61, can realize General preferably.
As further optimization: on the piston of cavity piston 6 between plane 661 and the piston lower plane 662 distance be between upper cylinder cover 65 and the following cylinder cap 67 distance 1/5th to 1/20th between.This distance can realize General preferably than generally being set at 1/10th.
The invention has the beneficial effects as follows: upper cylinder cover 65 inwalls are provided with contact 63 in, directly control adjusting control valve and switch more accurately quick; Adopt the suspended piston unique texture; Utilize on the piston removable Adjusting ring 62 between the plane 661 and piston lower plane 662; Let the proportion of cavity piston 6 overall spaces between the proportion of the proportion of liquid working medium and discarded highly pressurised liquid; Make cavity piston 6 self work of floating, any mechanical wear and mechanical resistance have been eliminated in the support and the sealing of having save piston rod; Can preferably liquid working medium and discarded highly pressurised liquid be kept apart basically again simultaneously, be fit to big flow energy interchange.The present invention has remedied the defective of existing technology, has both accomplished that high efficiency reclaims the overbottom pressure energy of the high-pressure thick salt solution in the reverse osmosis seawater desalination system processing procedure, can accomplish that again the energy transfer actuating equipment keeps in repair less, even avoid maintenance.
Description of drawings
Fig. 1 is the cross-sectional view of a kind of suspended piston energy transfer of the present invention final controlling element.In Fig. 2, Fig. 3, a kind of suspended piston energy transfer of the present invention final controlling element is connected the right wing between peace and quiet seawater adjusting control valve 14 and the brine adjusting control valve 19, and the mark sequence number is 18 (called afters: right final controlling element 18); A kind of suspended piston energy transfer of the present invention final controlling element is connected the left road between peace and quiet seawater adjusting control valve 14 and the brine adjusting control valve 19, and the mark sequence number is 28 (called afters: left final controlling element 28);
Fig. 2 is a kind of operating mode schematic representation that a kind of suspended piston energy transfer of the present invention final controlling element is applied to reverse osmosis seawater desalination system;
Fig. 3 is the another kind of operating mode schematic representation that a kind of suspended piston energy transfer of the present invention final controlling element is applied to reverse osmosis seawater desalination system.
Embodiment
Fig. 1 Fig. 2 and Fig. 3, combination have provided structure of the present invention and working principle and the application in reverse osmosis seawater desalination system.
A kind of suspended piston energy transfer final controlling element comprises cavity piston 6, cylinder sleeve 61, upper cylinder cover 65, following cylinder cap 67 and interior contact 63 and outer signal line 64, and described cavity piston 6 is cavity configuration, is arranged in the cavity of cylinder sleeve 61.The liquid working medium here is the peace and quiet seawater of proportion 1.02, and the discarded highly pressurised liquid here is the brine of proportion 1.06.Through changing suitable Adjusting ring 62, make self overall space proportion of cavity piston 6 equal 1.04.
The external diameter of plane 661, piston lower plane 662 and Adjusting ring 62 all is 198 centimetres on the piston, and the internal diameter of cylinder sleeve 61 is 200 centimetres.On the piston of cavity piston 6 between plane 661 and the piston lower plane 662 distance be 50 centimetres, between upper cylinder cover 65 and the following cylinder cap 67 apart from being 500 centimetres.
A right wing that is connected between peace and quiet seawater adjusting control valve 14 and the brine adjusting control valve 19 of a kind of suspended piston energy transfer of the present invention final controlling element, the mark sequence number is 18, promptly right final controlling element 18, outer signal line 64 connects adjusting control valve signaling line 16.Pipeline 66 connecting pipelines 15, pipeline 67 connecting pipelines 17.
The another of a kind of suspended piston energy transfer of the present invention final controlling element is connected on the left road between peace and quiet seawater adjusting control valve 14 and the brine adjusting control valve 19, and the mark sequence number is 28, promptly left final controlling element 28, and outer signal line 64 connects adjusting control valve signaling line 26.Pipeline 66 connecting pipelines 25, pipeline 67 connecting pipelines 27.
The work beginning; Peace and quiet seawater gets into from pipeline 1; Behind one-way valve 111, directly be pressurized to design pressure by high-power high voltage pump 2, by the road 21 get into reverse osmosis units 22 seawater chamber 221, under the effect of design pressure; Part fresh water passes the freshwater product chamber 224 that reverse osmosis membrane 23 backs get into reverse osmosis unit 22, and freshwater product flows out to application purpose from pipeline 24 and is located in.The brine that is blocked by reverse osmosis membrane 23 flows out the exchange of participation energy transfer from pipeline 3, generally still possesses 6.0MPa.
In the process of energy transfer exchange is arranged, high-power high voltage pump 2 power consumption of no longer working.Peace and quiet seawater 1 arrives pipeline 11 by the road; Be pressurized to 0.2Mpa by small-power precompressed pump 12; Distribute through alternately switching in advance of peace and quiet seawater adjusting control valve 14 through pipeline 13, the pipeline 66 that is connected to right wing through pipeline 25 respectively enters into peace and quiet seawater chamber 5 and enters into peace and quiet seawater chamber 5 through the pipeline 66 that pipeline 15 is connected to left road.
Fig. 2 is an example: get into brine adjusting control valve 19 when the brine that possesses the 6.0Mpa overbottom pressure flows out to pipeline 4 from pipeline 3; Brine after the regulation and control goes out the pipeline 67 that pipeline 17 gets into right final controlling element 18; Enter into the brine chamber 7 of right final controlling element 18 again, overbottom pressure passes to the peace and quiet seawater in the peace and quiet seawater chamber 5 through cavity piston 6, and the peace and quiet seawater that promotes in the peace and quiet seawater chamber 5 is connected to pipeline 15 from pipeline 66 extrusion; After peace and quiet seawater adjusting control valve 14 regulation and control, get into pipeline 8; Be pressurized pump 9 again and be pressurized to after the design pressure and extrude from pipeline 10, by the road 21 get into reverse osmosis units 22 seawater chamber 221, under the effect of design pressure; Part fresh water passes the freshwater product chamber 224 that reverse osmosis membrane 23 backs get into reverse osmosis unit 22, and freshwater product flows out to application purpose from pipeline 24 and is located in.Brine by reverse osmosis membrane 23 blocks is participated in the energy transfer exchange once more from pipeline 3 outflows.
Meanwhile; Peace and quiet seawater 1 arrives pipeline 11 by the road, is pressurized to 0.2Mpa by small-power precompressed pump 12, extrudes from pipeline 13; Distribute the back to get into the pipeline 66 of left final controlling element 28 from pipeline 25 through peace and quiet seawater adjusting control valve 14; Enter into the peace and quiet seawater chamber 5 of left final controlling element 28 again, promote cavity piston 6 will be by pressure release but also be trapped in brine in the brine chamber 7 and be expressed to pipeline 67 and be connected to pipeline 27, after 19 regulation and control of brine adjusting control valve, drain from escape pipe 20.
When the cavity piston 6 of right final controlling element 18 touches the interior contact 63 that upper cylinder cover 65 inwalls are provided with, outer signal line 64 connects adjusting control valve signaling lines 16 and cooperates synchronic command guide lines 149, realizes that peace and quiet seawater adjusting control valve 14 switches with brine adjusting control valve 19 synchronously.
Fig. 3 is an example: the brine that possesses the 6.0Mpa overbottom pressure flows out to pipeline 4 from pipeline 3 continuously and gets into brine adjusting control valve 19; At this moment, the brine after the regulation and control goes out the pipeline 67 that pipeline 27 gets into left final controlling element 28, enters into the brine chamber 7 of left final controlling element 28 again; Overbottom pressure passes to the peace and quiet seawater in the peace and quiet seawater chamber 5 through cavity piston 6; And promote peace and quiet seawater in the peace and quiet seawater chamber 5 and extrude from pipeline 66 and be connected to pipeline 25, get into pipeline 8 through peace and quiet seawater adjusting control valve 14 regulation and control backs, be pressurized pump 9 again and be pressurized to after the design pressure from pipeline 10 extrusion; By the road 21 get into reverse osmosis units 22 seawater chamber 221; Under the effect of design pressure, part fresh water passes the freshwater product chamber 224 that reverse osmosis membrane 23 backs get into reverse osmosis unit 22, and freshwater product flows out to application purpose from pipeline 24 and is located in.Brine by reverse osmosis membrane 23 blocks is participated in the energy transfer exchange once more from pipeline 3 outflows.
Meanwhile; Peace and quiet seawater 1 arrives pipeline 11 by the road; Be pressurized to 0.2Mpa by small-power precompressed pump 12, extrude, distribute the back to flow to the peace and quiet seawater chamber 5 of right final controlling element 18 from pipeline 15 through peace and quiet seawater adjusting control valve 14 from pipeline 13; Promote cavity piston 6 will be by pressure release but the brine that also is trapped in the brine chamber 7 is expressed to pipeline 17, after 19 regulation and control of brine adjusting control valve, drain from escape pipe 20.Realized alternately non-stop run by turns.
Meanwhile; Peace and quiet seawater 1 arrives pipeline 11 by the road, is pressurized to 0.2Mpa by small-power precompressed pump 12, extrudes from pipeline 13; Distribute the back to get into the pipeline 66 of right final controlling element 18 from pipeline 15 through peace and quiet seawater adjusting control valve 14; Enter into the peace and quiet seawater chamber 5 of right final controlling element 18 again, promote cavity piston 6 will be by pressure release but also be trapped in brine in the brine chamber 7 and be expressed to pipeline 67 and be connected to pipeline 17, after 19 regulation and control of brine adjusting control valve, drain from escape pipe 20.
Touch the interior contact 63 of upper cylinder cover 65 inwalls setting when the cavity piston 6 of left final controlling element 28; Outer signal line 64 connects adjusting control valve signaling line 26 and cooperates synchronic command guide line 149; Realize switching synchronously once more of peace and quiet seawater adjusting control valve 14 and brine adjusting control valve 19, the realization system replaces continuous operation.
At last, it is also to be noted that above case only is a specific embodiment of the present invention.Obviously, the invention is not restricted to above embodiment, many distortion can also be arranged.All distortion that those of ordinary skill in the art can directly derive or associate from content disclosed by the invention all should be thought protection scope of the present invention.
Claims (4)
1. suspended piston energy transfer final controlling element; Comprise that cavity piston (6), cylinder sleeve (61), upper cylinder cover (65) reach cylinder cap (67) down; It is characterized in that: between plane (661) and the piston lower plane (662) a removable Adjusting ring (62) is arranged on the piston of cavity piston (6), the sealing of plane (661) and piston lower plane (662) combines on the two ends of Adjusting ring (62) and the piston; Cylinder sleeve (61) is sealing and fixing with upper cylinder cover (65) and after cylinder cap (67) wraps up cavity piston (6) down.
2. a kind of suspended piston energy transfer final controlling element according to claim 1 is characterized in that: upper cylinder cover (65) inwall is provided with contact (63) in, is connected to an outer signal line (64) and draws from upper cylinder cover (65) outside; There is perforate at upper cylinder cover (65) center, external pipeline 66; There is perforate at following cylinder cap (68) center, external pipeline (67).
3. a kind of suspended piston energy transfer final controlling element according to claim 1; It is characterized in that: between the interior circular diameter of the outside diameter of cavity piston (6) and cylinder sleeve (61) is gapped, between one of 1/50th to two percentage of the monolateral radial dimension in gap circular diameter in cylinder sleeve (61).
4. a kind of suspended piston energy transfer final controlling element according to claim 1 is characterized in that: on the piston of cavity piston (6) between plane (661) and the piston lower plane (662) distance be between upper cylinder cover (65) and the following cylinder cap (67) distance 1/5th to 1/20th between.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110091619.4A CN102734239B (en) | 2011-04-05 | 2011-04-05 | Energy transfer actuator of suspension piston |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110091619.4A CN102734239B (en) | 2011-04-05 | 2011-04-05 | Energy transfer actuator of suspension piston |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102734239A true CN102734239A (en) | 2012-10-17 |
| CN102734239B CN102734239B (en) | 2015-03-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110091619.4A Expired - Fee Related CN102734239B (en) | 2011-04-05 | 2011-04-05 | Energy transfer actuator of suspension piston |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ZA988058B (en) * | 1997-09-03 | 1999-03-05 | Manuel Barreto Avero | Water desalination unit using reverse osmosis in suspended piston pressurized chambers and piston position monotoring system |
| CN1343528A (en) * | 2001-08-15 | 2002-04-10 | 天津大学 | Valve controlled residual pressure recovering equipment for impervious desalination system |
| WO2006106158A1 (en) * | 2005-04-05 | 2006-10-12 | Empresa Mixta De Aguas De Las Palmas S.A. | Independent reverse osmosis desalination units which are connected in terms of energy flow |
| CN201582231U (en) * | 2009-12-17 | 2010-09-15 | 汪泽民 | Gas-liquid separation oil supplementing cylinder |
| CN101985951A (en) * | 2010-11-04 | 2011-03-16 | 杭州水处理技术研究开发中心有限公司 | Electric-hydraulic reversing energy recovery device |
| CN201963619U (en) * | 2011-04-05 | 2011-09-07 | 张意立 | Suspension piston energy transfer actuator |
-
2011
- 2011-04-05 CN CN201110091619.4A patent/CN102734239B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ZA988058B (en) * | 1997-09-03 | 1999-03-05 | Manuel Barreto Avero | Water desalination unit using reverse osmosis in suspended piston pressurized chambers and piston position monotoring system |
| CN1343528A (en) * | 2001-08-15 | 2002-04-10 | 天津大学 | Valve controlled residual pressure recovering equipment for impervious desalination system |
| WO2006106158A1 (en) * | 2005-04-05 | 2006-10-12 | Empresa Mixta De Aguas De Las Palmas S.A. | Independent reverse osmosis desalination units which are connected in terms of energy flow |
| CN201582231U (en) * | 2009-12-17 | 2010-09-15 | 汪泽民 | Gas-liquid separation oil supplementing cylinder |
| CN101985951A (en) * | 2010-11-04 | 2011-03-16 | 杭州水处理技术研究开发中心有限公司 | Electric-hydraulic reversing energy recovery device |
| CN201963619U (en) * | 2011-04-05 | 2011-09-07 | 张意立 | Suspension piston energy transfer actuator |
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| CN102734239B (en) | 2015-03-25 |
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