CN102588356A - Rotary fluid pressure switcher with connected single cylinder - Google Patents
Rotary fluid pressure switcher with connected single cylinder Download PDFInfo
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- CN102588356A CN102588356A CN2012100679738A CN201210067973A CN102588356A CN 102588356 A CN102588356 A CN 102588356A CN 2012100679738 A CN2012100679738 A CN 2012100679738A CN 201210067973 A CN201210067973 A CN 201210067973A CN 102588356 A CN102588356 A CN 102588356A
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- pressure
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- 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
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Abstract
The invention relates to a rotary fluid pressure switcher with a connected single cylinder, and belongs to the fluid pressure switcher technology of a reverse osmosis desalination energy recycling device. The fluid pressure switcher comprises a cylinder body, wherein a pressure boosting hole, a pressure leakage hole and a pressure leakage saline water outlet hole are arranged on the cylinder body; a front end cover and a back end cover are respectively arranged at two ends of the cylinder body; a high pressure saline water inlet hole is arranged on a back end cover; a rotary core is arranged in the cylinder body; a high pressure cavity and a low pressure cavity are arranged in the rotary core; two high pressure holes are symmetrically arranged on the high pressure cavity in a circumferential direction of 180 degrees; and two low pressure holes which form 90 degrees with a central line of the high pressure holes are symmetrically arranged on the low pressure cavity in a circumferential direction of 180 degrees. The rotary fluid pressure switcher with the connected single cylinder has the advantages of being simple in structure, convenient in installation, flexible in configuration, high in efficiency, small in drive force and low in noise, so that the complicated fluid switch can be realized.
Description
Technical field
The present invention relates to a kind of single cylinder and connect the rotary fluid pressure switch, belong to the hydrodynamic pressure switch technology of reverse osmosis sea water desalting energy recovery device.
Background technique
Reverse osmosis seawater desalting is generally adopted in China as a kind of main freshwater resources increment technique.This technology belongs to pressure-actuated film separation process; Raw material seawater needs at first to be pressurized between the 5.5-8.0MPa through high-pressure service pump and to get into reverse osmosis membrane assembly; Wherein about 45% raw material seawater is separated into desalination product water through reverse osmosis membrane; Remaining about 55% concentrated seawater then is discharged with the form of the high pressure brine suitable with raw material seawater pressure (pressure>5.0MPa), causes the huge waste of energy.
Energy recycle device has become one of this technological key equipment because of significantly reducing reverse osmosis seawater desalination system ton water consumption.Energy recycle device mainly is divided into two types of hydraulic turbine formula and positive displacement formulas by working principle.The former energy recovery efficiency relatively low (< 85%), and when departing from the device rated flow, can sharply descend.Latter's energy recovery efficiency is up to 95%, and do not operated flow effect basically, becomes the major products of domestic and international research and development and marketing.
Valve control energy recycle device promptly belongs to positive displacement formula product type, and switch is one of its most crucial part device.Patent 200480006441.7 has been announced a kind of annex with pressure exchanger equipment (being switch), and this patent design deficiency is: one of which, switch housing are sandwich structure, and moulding and processing technology are complicated, and the device manufacture cost is higher; Its two, have seal area during commentaries on classics core rotation in the switch, in the sealing district, can not carry out pressurization and can not carry out pressure leak process, therefore device phase place in running is discontinuous, causes bigger flow and pressure surge; Its three, every switch must be connected with two pressure-exchange cylinders, therefore two pressure-exchange cylinder spacings and position must accurately be located, installation process is complicated.
Summary of the invention
The object of the present invention is to provide a kind of single cylinder to connect the rotary fluid pressure switch.This hydrodynamic pressure switch manufacturing is simple, cost is low, device flow and pressure ripple disable, stable, efficient is high, easy for installation, overlap parallelly connected flexible configuration more.
The present invention realizes through following technological scheme: a kind of single cylinder connects the rotary fluid pressure switch, it is characterized in that, comprises cylindrical shell 11, at cylindrical shell circumferential 180
oBoth sides, a side is offered pressurized hole 3 and relief hole 5, pressurized hole 3 and relief hole 5 with etc. press-bending 4 be connected; Opposite side is offered pressure release brine outlet 7, and this exports external short tube, connects two end caps through bolt respectively at the two ends of cylindrical shell 11; Wherein an end is the rear end cover 2 that has high pressure brine import 1; The front cover 6 that the other end is and rotatingshaft seals, in cylindrical shell 11, being provided with rotatingshaft is the commentaries on classics core 10 of one, this commentaries on classics in-core is provided with two chambers; Wherein the chamber near rear end cover 2 is a hyperbaric chamber 13, and they are circumferential 180 years old
oSymmetry is offered two pressure holes 12, is low pressure chamber 8 near the chamber of rotary shaft end, and they are circumferential 180 years old
oSymmetry is offered two low pressure holes 9, and this low pressure centerline hole is vertical each other with pressure hole 12 center lines.
Advantage of the present invention: realize that with simple structure complicated fluid switches, this fluid switch only links to each other with a pressure-exchange cylinder, is convenient to install; The parallelly connected flexible configuration of many covers, easy satisfied processing load increment demand, and flow and pressure ripple disable; Pressure hole 12 is changeing core 10 circumferential 180 respectively with low pressure hole 9
oBe symmetrical set, therefore do not have angular force, motor load is little, and noise is low.
Description of drawings
Fig. 1 connects rotary fluid pressure switch structural representation for single cylinder of the present invention.
Among Fig. 1: the import of 1-high pressure brine; 2-rear end cover; 3-pressurized hole; 4-wait press-bending; 5-relief hole; 6-front cover; 7-pressure release brine outlet; 8-low pressure chamber; 9-low pressure hole; 10-commentaries on classics core; 11-cylindrical shell; 12-pressure hole; 13-hyperbaric chamber.
Fig. 2 connects the rotary fluid pressure switch configurations in the seepage-resisting sea-water desalting process flow chart for single cylinder of the present invention.
Among Fig. 2: 1-1-hydrodynamic pressure switch, 1-2-pressure-exchange cylinder, 1-3-supercharging seawater outlet valve and 1-4-low pressure seawater inlet valve.They constitute an energy recovery unit, and this unit is carrying out pressurization among the figure.
Embodiment
Below in conjunction with accompanying drawing the present invention is further specified.Fig. 1 connects rotary fluid pressure switch structural representation for single cylinder of the present invention, figure middle cylinder body 11 external diameter Φ 180mm, internal diameter Φ 150mm, long 325mm; The pressurized hole 3 that is provided with on the cylindrical shell, relief hole 5 and pressure release brine outlet 7, internal diameter is Φ 50mm; Be connected internal diameter Φ 50mm with cylindrical shell with the form of welding Deng press-bending 4; Rear end cover 2 is provided with high pressure brine import 1, aperture Φ 50mm; High pressure brine import 1 connects with changeing the hyperbaric chamber 13 that is provided with on the core 10, and this hyperbaric chamber external diameter is the external diameter that changes core, and size is Φ 150mm, this hyperbaric chamber internal diameter Φ 110mm, hyperbaric chamber interior 180
oBe symmetrically arranged with pressure hole 12, internal diameter Φ 50mm; Change core and be provided with low pressure chamber 8, internal diameter Φ 110mm, this low pressure chamber interior 180
oBe symmetrically arranged with low pressure hole 9, the aperture is 50mm.
Said structure hydrodynamic pressure switch working procedure is following:
Among the present invention, cylindrical shell 11 is stators, and changeing core 10 is rotors, and the power that changes the core rotation is provided by external motor.Combine the running in the energy recovery unit one-period among Fig. 2 to describe: when the commentaries on classics core 10 among the hydrodynamic pressure switch 1-1 that connects pressure-exchange cylinder 1-2 rotates to state as shown in Figure 1 at present; Changeing core 10 stops the rotation; Low pressure hole 9 is in the state of being closed, and pressure hole 12 connects with waiting press-bending 4 fully.This moment, high pressure brine flowed in the hyperbaric chamber 13 through high pressure brine import 1; High pressure brine in the hyperbaric chamber 13 more successively through pressure hole 12, etc. bend 4, in the feed pressure exchange cylinder 1-2, promote piston in the pressure-exchange cylinder to supercharging seawater outlet valve 1-3 end motion; Simultaneously the low pressure seawater is carried out supercharging; Seawater after the supercharging flows out through supercharging seawater outlet valve 1-3, and this process is a pressurization, i.e. state shown in the energy recovery unit among Fig. 2; Treat among the pressure-exchange cylinder 1-2 this pressure-exchange cylinder of piston arrives near behind the supercharging seawater outlet valve end, commentaries on classics core among hydrodynamic pressure switch 1-1 rotation 45
oAfter stop the rotation, this moment, pressure hole 12 was in the state of being closed, low pressure hole 9 is in the state of being closed, the commentaries on classics core under this state in the fluid pressure switcher is in sealing area, do not increase pressure release in the pressure-exchange cylinder this moment, this process is the wait process; After the wait process finishes, the same once more direction rotation 45 of the commentaries on classics core among the hydrodynamic pressure switch 1-1
oAfter stop the rotation, this moment, pressure hole 12 was in the state of being closed, low pressure hole 94 connects with waiting to bend fully.This moment, the low pressure seawater passed through to promote pressure-exchange cylinder inner carrier to the switch end motion in the low pressure seawater inlet valve 1-4 feed pressure exchange cylinder, and then successively through waiting press-bending 4, low pressure hole 9, pressure release brine outlet 7 to discharge, this process is a pressure leak process to pressure release salt solution; After pressure leak process finishes, change the same once more direction rotation 45 of core
oStop the rotation, get into the wait process this moment again.Wait for that after " fixed time ", the wait process finishes, change the same once more direction rotation 45 of core
oGet into pressurization.So, an operation period comprises pressurization, wait process, pressure leak process, wait process.After treating an operation period end, then get into the next operation period.
Many cover energy recovery unit can realize carrying out continuously of supercharging, wait and pressure leak process according to the certain phase difference parallel running, so flow and the equal ripple disable of pressure in the main pipe rail.
Claims (1)
1. a single cylinder connects the rotary fluid pressure switch, it is characterized in that, comprises cylindrical shell (11), at cylindrical shell circumferential 180
oBoth sides, a side is offered pressurized hole (3) and relief hole (5), pressurized hole (3) and relief hole (5) with etc. press-bending (4) be connected; Opposite side is offered pressure release salt solution osculum (7), and the external short tube of this osculum connects two end caps through bolt respectively at the two ends of cylindrical shell (11); Wherein an end is for having the rear end cover (2) of high pressure brine water intake (1); The other end is the front cover (6) with rotatingshaft sealing, and the commentaries on classics core (10) with the rotatingshaft one is arranged in cylindrical shell (11), and this commentaries on classics in-core is provided with two chambers; Wherein the chamber near rear end cover (2) is hyperbaric chamber (13), and they are circumferential 180 years old
oSymmetry is offered two pressure holes (12), is low pressure chamber (8) near the chamber of rotary shaft end, and they are circumferential 180 years old
oSymmetry is offered two low pressure holes (9), and this low pressure centerline hole is vertical each other with pressure hole (12) center line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100679738A CN102588356A (en) | 2012-03-15 | 2012-03-15 | Rotary fluid pressure switcher with connected single cylinder |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100679738A CN102588356A (en) | 2012-03-15 | 2012-03-15 | Rotary fluid pressure switcher with connected single cylinder |
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| CN102588356A true CN102588356A (en) | 2012-07-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012100679738A Pending CN102588356A (en) | 2012-03-15 | 2012-03-15 | Rotary fluid pressure switcher with connected single cylinder |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102949934A (en) * | 2012-11-14 | 2013-03-06 | 中冶海水淡化投资有限公司 | Reverse osmosis seawater desalination energy recovery device and switcher thereof |
| CN104019065A (en) * | 2013-03-01 | 2014-09-03 | 王建勋 | Pressure exchange method of pressure exchange pump |
| CN104353359A (en) * | 2014-11-14 | 2015-02-18 | 中冶海水淡化投资有限公司 | Fluid reversing switching device and sea water desalination energy recycling device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5306428A (en) * | 1992-10-29 | 1994-04-26 | Tonner John B | Method of recovering energy from reverse osmosis waste streams |
| CN1758951A (en) * | 2003-03-12 | 2006-04-12 | Ksb股份公司 | Fitting for installations having pressure exchangers |
| WO2008056014A1 (en) * | 2006-11-10 | 2008-05-15 | Morales Aragones Jose Ignacio | Liquid pressure converter for use in pumping systems without any external energy input |
| CN202482108U (en) * | 2012-03-15 | 2012-10-10 | 天津大学 | Single cylinder connection rotary fluid pressure switcher |
-
2012
- 2012-03-15 CN CN2012100679738A patent/CN102588356A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5306428A (en) * | 1992-10-29 | 1994-04-26 | Tonner John B | Method of recovering energy from reverse osmosis waste streams |
| CN1758951A (en) * | 2003-03-12 | 2006-04-12 | Ksb股份公司 | Fitting for installations having pressure exchangers |
| WO2008056014A1 (en) * | 2006-11-10 | 2008-05-15 | Morales Aragones Jose Ignacio | Liquid pressure converter for use in pumping systems without any external energy input |
| CN202482108U (en) * | 2012-03-15 | 2012-10-10 | 天津大学 | Single cylinder connection rotary fluid pressure switcher |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102949934A (en) * | 2012-11-14 | 2013-03-06 | 中冶海水淡化投资有限公司 | Reverse osmosis seawater desalination energy recovery device and switcher thereof |
| CN102949934B (en) * | 2012-11-14 | 2014-07-09 | 中冶海水淡化投资有限公司 | Reverse osmosis seawater desalination energy recovery device and switcher thereof |
| CN104019065A (en) * | 2013-03-01 | 2014-09-03 | 王建勋 | Pressure exchange method of pressure exchange pump |
| CN104353359A (en) * | 2014-11-14 | 2015-02-18 | 中冶海水淡化投资有限公司 | Fluid reversing switching device and sea water desalination energy recycling device |
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Application publication date: 20120718 |