CN208229668U - A kind of energy recovery pump for reverse osmosis water treatment system - Google Patents
A kind of energy recovery pump for reverse osmosis water treatment system Download PDFInfo
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- CN208229668U CN208229668U CN201820385689.8U CN201820385689U CN208229668U CN 208229668 U CN208229668 U CN 208229668U CN 201820385689 U CN201820385689 U CN 201820385689U CN 208229668 U CN208229668 U CN 208229668U
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- check valve
- water
- reverse osmosis
- connecting rod
- diaphragm
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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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- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The utility model relates to a kind of energy recovery pumps for reverse osmosis water treatment system, energy recovery pump includes the pump housing, set on the connecting rod for pumping intracorporal diaphragm and being connected with diaphragm, the pump housing is divided into booster cavity and reclaiming chamber two parts by diaphragm, connecting rod is set in reclaiming chamber, booster cavity side is respectively equipped with water feeding one-way valve and pressurization check valve, reclaiming chamber side is respectively equipped with recycling check valve and check valve of water drainage, connecting rod drives diaphragm to move back and forth in the pump housing, after raw water enters booster cavity by water feeding one-way valve, enter the water inlet of reverse osmosis membrane assembly by being pressurized check valve again, waste water enters reclaiming chamber by recycling check valve from the concentrated water spout of reverse osmosis membrane assembly, it is discharged again by check valve of water drainage.Compared with prior art, the utility model is at low cost, low energy consumption, it is compact-sized, there is suction capacity, can high-speed motion, recovery efficiency is high, and can be made into twin cylinder pump or multicylinder pump as needed, can be widely applied in high pressure reverse osmosis water treatment system.
Description
Technical field
The utility model relates to water treatment fields, and in particular to a kind of energy regenerating for reverse osmosis water treatment system
Pump.
Background technique
Desalination technology receives more and more attention as the important means for alleviating water resource shortage.Numerous
Desalination technology in, hyperfiltration since cost is lower, gradually become market mainstream technological means.Reverse osmosis seawater
Desalination technology is that raw material seawater is pressurizeed using high-pressure pump, its pressure is made to reach reverse osmosis 5.0~7.0MPa of operating pressure (depending on sea
Depending on salinity water is different), the seawater after then making pressurization flows to the reverse osmosis membrane in reverse osmosis membrane device, and part of it passes through reverse osmosis
Permeable membrane becomes fresh water, and another part becomes strong brine discharge.Since pressure is still very high in strong brine, if not being used, then often
Power consumption required for one ton of fresh water is produced in 10KW.h or more.
Early stage uses the seawater desalination system of hyperfiltration to reduce production water consume electricity per ton, has mostly used raising reverse osmosis
The method of pressure before film.But this method is born pressure by reverse osmosis membrane highest, deposits the difficulty soluble salt limit rate of recovery, concentration polarization
The restriction of the limit rate of recovery and high pressure pump lift, power consumption is still in 8KW.h or more.The 1980s Energy Recovery Technology quilt
It is a large amount of to use, using pump and Pei Erdun impeller type energy recycle device is reversed, it can effectively recycle discarded high-pressure undersea
Energy in water, so that power consumption be made to substantially reduce；Later period develops hydraulic turbine type energy recycle device again, makes a ton water power consumption
It further decreases；The development of positive displacement technology is contacted, directly recently as fluid with piston function exchanger and rotary pressure
Exchanger is that the energy recycle device energy recovery efficiency of new generation of representative has reached 90% or more, to make one ton of fresh water of every production
Power consumption be reduced to 4KW.h or less.
There are four types of the piston function exchanger type of skill of current common use.The first is isobaric switch type, such as A Keling
The DWEER type piston type function exchanger of company is homalographic piston, makes high-pressure thick water pressure in exchanger and enters intracavitary original
Water pressure is equal, to realize the recoverable purpose of pressure；Second is boosting switch type, such as Tianjin sea water desalination and comprehensive benefit
It is single-piston rod piston with the boost type energy recycle device of Research Institute, it is former on one side that high pressure concentrated water acts on piston-rodless
Water has acted on piston rod one side, to keep raw water pressure high-pressure thick water pressure high, realizes energy regenerating and pressurization；The
Three kinds are differential pressure switch types, if the Clark of Spectra company of the U.S. is pumped, are similar to two plunger stem flange cylinders and are connected, pass through
Achieve the purpose that energy regenerating and pressurization using high-pressure section piston area product moment and low-pressure section pressure difference.It is preceding in the above technology
Two kinds need not having function of increasing pressure using high-pressure pump；Although the third does not need high-pressure pump, there is still a need for an elevated pressures
Raw water pump.It is limited to piston movement speed (too fast easy to wear), three kinds of technologies have the shortcomings that common, an i.e. piston/cylinder
Product is huge: other to be applied in large and medium-sized seawater Seawater Desalination Project in addition to Clark pump；Clark pumps more other small-sized seawater
It is also greater to desalinate pump volume.
On this basis, a kind of Pearson pump is also been developed in Spectra company in the U.S., and which employs be similar to plunger
Strong brine is recycled to side intracavitary (hereinafter referred to as reclaiming chamber, the no connecting rod one that plunger has connecting rod in pressurization by the structure type of pump
Side is known as booster cavity), thus achieve the purpose that energy regenerating, but since used check valve is mechanical structure form, and
It recycles unidirectional valve events to be controlled by pressurization check valve, therefore in its pressurization, pressurizing chamber pressure must increase to pressure before film
Pressurization check valve could be opened above, and then opens recycling check valve.Pressurizing chamber pressure and recycling cavity pressure are up to 5MPa at this time
More than, this just brings two problems: 1) can only use the strong movable parts of bearing capacities such as plunger or piston, and be limited to column
Plug or piston movement speed (too fast easy to wear), can only move under lower movement velocity；2) motor provisioned in should with without
The plunger pump of energy regenerating is same or equivalent, this is because its peak load quite even exceeds, therefore Pearson pump substantially class
It is similar to common plunger pump and increases energy recovery function.
A similar product PowerSurvivor has also been developed in Katadyn company of Switzerland, uses single plunger pump
Form, is directly recycled to reclaiming chamber for concentrated water, does not set recycling check valve and check valve of water drainage, but this structure is except having
Pearson is pumped outside possessed disadvantage, also as pressure cannot keep before film, not only recovery efficiency is very low, but also can not be made into
Twin cylinder pump or multicylinder pump.
Utility model content
The purpose of this utility model is exactly to provide a kind of for reverse osmosis water treatment system to solve the above-mentioned problems
Energy recovery pump.
The purpose of this utility model is achieved through the following technical solutions:
A kind of energy recovery pump for reverse osmosis water treatment system, including the pump housing, be set to pump intracorporal diaphragm and with
The pump housing is divided into booster cavity and reclaiming chamber two parts by the connected connecting rod of diaphragm, the diaphragm, and the connecting rod is set to reclaiming chamber
Interior, the booster cavity side is respectively equipped with water feeding one-way valve and pressurization check valve, and it is single that the reclaiming chamber side is respectively equipped with recycling
To valve and check valve of water drainage, the connecting rod drives diaphragm to move back and forth in the pump housing, and raw water enters pressurization by water feeding one-way valve
After chamber, then by being pressurized check valve enter the water inlet of reverse osmosis membrane assembly, waste water passes through from the concentrated water spout of reverse osmosis membrane assembly
Recycling check valve enters reclaiming chamber, then is discharged by check valve of water drainage, in whole process, passes through control recycling check valve and row
Water one-way valve opens or closes, and realizes energy regenerating and reduces the pressure difference of diaphragm two sides.
Its action sequence are as follows:
Before pressurization starts, connecting rod be located at its can operating space right end, recycling check valve be in close state, arrange
Water one-way valve is in the open state, and after pressurization starts, connecting rod moves from right to left, and recycling check valve is opened, draining is unidirectional
Valve is closed, and pressurization continues to connecting rod to run to left end；Before water inlet process starts, connecting rod be located at its can operating space most
Left end, check valve is in the open state for recycling, check valve of water drainage is in close state, and after water inlet process starts, connecting rod is from left-hand
Right movement, recycling closed check valve, check valve of water drainage are opened, and water inlet process continues to connecting rod to run to right end.
Concrete principle are as follows:
Connecting rod moves right, and since recycling closed check valve, check valve of water drainage are opened, reclaiming chamber communicates (general with outside
Its pressure is atmospheric pressure), therefore connecting rod hauls diaphragm and concentrated water is discharged from reclaiming chamber, simultaneously as booster cavity volume becomes larger, because
This rapid pressure drop, when it is lower than intake pressure (its general pressure is atmospheric pressure), water feeding one-way valve is opened, and raw water is lasting
Into in booster cavity.
When link motion to its can operating space right end when, pressurization starts.Recycling check valve is opened at this time, row
Water one-way valve is closed, and reclaiming chamber is communicated with concentrated water after film, and is pressed with booster cavity；At this time since pressurizing chamber pressure is compared with intake pressure
Height, water feeding one-way valve are closed.Connecting rod moves downward the liquid in continuous extrusion booster cavity, when water feeding one-way valve when fluid pressure is high
Before film when pressure, pressurization check valve is opened, and pressurized raw water continues into film.
Further, the recycling check valve and check valve of water drainage are opened in advance during pressurization or water inlet or postpone to close
It closes.In whole process, opened in advance by recycling check valve to avoid in pressurization initial stage diaphragm pressure at both sides difference
The impaired situation of diaphragm caused by excessive；There is reverse osmosis by recycling check valve late release to avoid in pressurization latter stage
Before permeable membrane the case where hypertonia；It is opened in advance by check valve of water drainage and late release is to avoid water inlet two side pressure of remote diaphragm
The impaired situation of diaphragm caused by power has big difference.
Further, the diaphragm is pressure restraining element, and bearing capacity is in 0.1-0.5MPa.In general, diaphragm of rubber
Bearing capacity is 0.1-0.5MPa, and the pressure of 5.0-7.0MPa, but the utility model are up in unbearable seawater desalination system
In pressurization start time, will by the high pressure concentrated water of reverse osmosis membrane be recycled to pump reclaiming chamber in, and due to boost pressure with time
Receipts pressure is roughly the same, and (by taking SW2540 film as an example, under 1t/h flow, when boost pressure is 5.50MPa, pressure recovery is about
5.47MPa), therefore diaphragm of rubber can be used as pressurizing elements.
The movement pressure-containing member such as the piston of bearing capacity no more than 1MPa can be used and replace diaphragm.In some sea water desalination systems
The more demanding water rate of recovery in system, differing in a short time between boost pressure and pressure recovery can reach 0.5MPa or more, this
The slightly higher piston of bearing capacity can be used in when, and instead of diaphragm application, (under the 45% water rate of recovery, plunger designs bearing capacity is
Requirement can be met when 1MPa).
Further, the connecting rod connects driving unit, and the driving unit uses motor-driven cam mechanism, bias
Take turns mechanism or crank link mechanism.
Further, the recycling check valve and check valve of water drainage can be controlled separately, and can be opened in advance, postpone to close
The adjustment closed.
Further, the recycling check valve and check valve of water drainage use solenoid valve, or use motor-driven cam
Mechanism or eccentric wheel mechanism control the movement of recycling check valve and check valve of water drainage.
The energy recovery pump is used for sea water desalination or bitter treatment process.Simplex pump, twin cylinder pump or multicylinder pump can be used.
The water feeding one-way valve is by piping connection former pond, and for the check valve of water drainage by piping connection wastewater disposal basin, the pressurization is single
To the water inlet of valve connection reverse osmosis membrane assembly, the concentrated water spout of the recycling check valve connection reverse osmosis membrane assembly, reverse osmosis membrane
The production water of component, which is passed through, produces pond.
In low pressure water treatment field, diaphragm pump occupies the market of the overwhelming majority due to small in size, cheap.However
In high pressure water treatment field, it is limited to the bearing capacity of diaphragm, fails to be applied.Before the utility model utilizes reverse osmosis membrane
The lower mechanism of pressure difference afterwards passes through the means for having connecting rod side to reduce diaphragm pressure at both sides concentrated water pressure recovery to diaphragm, wound
Using the lower diaphragm of price to new property replaces expensive plunger as pressurizing elements, to make to lead in high pressure water process
Domain is also able to use diaphragm pump, to achieve the purpose that reduce pump volume, reduce pump price.
Compared with prior art, the utility model is at low cost, low energy consumption, it is compact-sized, have suction capacity, can transport at a high speed
Dynamic, recovery efficiency is high, and can be made into twin cylinder pump or multicylinder pump as needed, can be widely applied to seawater desalination system, bitter
In the high pressures reverse osmosis water treatment system such as processing system.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model energy recovery pump；
Fig. 2 is the schematic diagram of the utility model energy recovery pump pressurization (arrow direction is link motion direction)；
Fig. 3 is the schematic diagram of the utility model energy regenerating pump water inlet process (arrow direction is link motion direction)；
Fig. 4 is a kind of structural schematic diagram of energy recovery pump of embodiment 1；
Fig. 5 is a kind of structural schematic diagram of energy recovery pump of embodiment 2；
Fig. 6 is a kind of structural schematic diagram of energy recovery pump of embodiment 3；
Fig. 7 is a kind of structural schematic diagram of energy recovery pump of embodiment 4；
Fig. 8 is the structural schematic diagram that embodiment 5 is applied in water treatment system；
In figure: the pump housing 1, diaphragm 2, connecting rod 3, water feeding one-way valve 4, pressurization check valve 5, recycling check valve 6, check valve of water drainage
7, motor 8, cam 9, actuated by cams frame 10, eccentric wheel 11, eccentric wheel driver framework 12, crank link mechanism 13, former pond
14, wastewater disposal basin 15, production pond 16, reverse osmosis membrane assembly 17.
Specific embodiment
The utility model is described in detail in the following with reference to the drawings and specific embodiments.
A kind of energy recovery pump for reverse osmosis water treatment system, such as Fig. 1-3, including the pump housing 1, in the pump housing 1
The pump housing 1 is divided into booster cavity and reclaiming chamber two parts by diaphragm 2 and the connecting rod 3 being connected with diaphragm 2, diaphragm 2, and connecting rod 3 is set to back
Receive intracavitary, booster cavity side is respectively equipped with water feeding one-way valve 4 and pressurization check valve 5, and it is unidirectional that reclaiming chamber side is respectively equipped with recycling
Valve 6 and check valve of water drainage 7, connecting rod 3 drive diaphragm 2 to move back and forth in the pump housing 1, and raw water enters pressurization by water feeding one-way valve 4
After chamber, then by pressurization check valve 5 into the water inlet of reverse osmosis membrane assembly, waste water passes through from the concentrated water spout of reverse osmosis membrane assembly
It recycles check valve 6 and enters reclaiming chamber, then be discharged by check valve of water drainage 7.Specifically, diaphragm 2 is pressure restraining element, and bearing capacity exists
0.1-0.5MPa also can be used movement pressure-containing member of the bearing capacity no more than 1MPa and replace diaphragm 2, and movement pressure-containing member is preferred
Using piston.Connecting rod 3 connects driving unit, and driving unit is connected using motor-driven cam mechanism, eccentric wheel mechanism or crank
Linkage.Recycling check valve 6 and check valve of water drainage 7 can be controlled separately.It recycles check valve 6 and check valve of water drainage 7 uses electromagnetism
Valve, or the movement of recycling check valve 6 and check valve of water drainage 7 is carried out using motor-driven cam mechanism or eccentric wheel mechanism
Control.
Embodiment 1
As shown in figure 4, using double-cylinder structure form, including the pump housing 1,1 ', diaphragm 2,2 ', connecting rod 3,3 ', water feeding one-way valve
4,4 ', it is pressurized check valve 5,5 ', recycles check valve 6,6 ', check valve of water drainage 7,7 ', by motor 8 including cam 9 and actuated by cams
The cam mechanism of frame 10 drives；Check valve 6,6 ' is recycled, check valve of water drainage 7,7 ' and its control mechanism use solenoid valve form.
Motor 8 does pump back and forth with moving cam 9 and the driving of actuated by cams frame 10 left side cylinder rod 3 and right side cylinder rod 3 '
Movement, recycles check valve 6,6 ', and check valve of water drainage 7,7 ' cooperates its movement by the utility model action sequence in the form of solenoid valve.
When left side cylinder is in pressurization, right side cylinder is in water inlet process；Vice versa.Pressurization and recycling function so can be realized.
Embodiment 2
As shown in figure 5, it uses double-cylinder structure form, by motor 8, including eccentric wheel 11 and eccentric wheel driver framework 12
Eccentric wheel mechanism driving；Check valve 6,6 ' is recycled, the control mechanism of check valve of water drainage 7,7 ' also uses eccentric wheel mechanism form.
Eccentric wheel mechanism driving left side cylinder rod 3 of the motor 8 with movable eccentric wheel 11 and eccentric wheel driver framework 12 and right side
Cylinder rod 3 ' makes pump move reciprocatingly, and recycles check valve 6,6 ', and check valve of water drainage 7,7 ' is practical new by this by eccentric wheel mechanism
Type action sequence cooperates its movement.When left side cylinder is in pressurization, right side cylinder is in water inlet process；Vice versa.So i.e.
Pressurization and recycling function can be achieved.
Embodiment 3
As shown in fig. 6, it uses triplex structure form, including the pump housing 1,1 ', 1 ", diaphragm 2,2 ', 2 ", connecting rod 3,3 ', 3 ",
Water feeding one-way valve 4,4 ', 4 ", it is pressurized check valve 5,5 ', 5 ", recycle check valve 6,6 ', 6 ", check valve of water drainage 7,7 ', 7 ", use
Motor and crank link mechanism 13 drive；Recycle check valve, the control mechanism of check valve of water drainage uses cam mechanism form.
Motor 8 drives 13 drive link of crank link mechanism that pump is made to move reciprocatingly, and recycling check valve, check valve of water drainage are logical
It crosses cam mechanism and cooperates its movement by the utility model action sequence.When left side cylinder is in pressurization, right side cylinder is in water inlet
Process；Vice versa.Pressurization and recycling function so can be realized.
Embodiment 4
As shown in fig. 7, it uses single cylinder structure type, by motor 8, including eccentric wheel 11 and eccentric wheel driver framework 12
Eccentric wheel mechanism driving；Recycle check valve 6, the control mechanism of check valve of water drainage 7 also uses eccentric wheel mechanism form.
Motor 8 makes pump do reciprocal fortune with the eccentric wheel mechanism drive link 3 of movable eccentric wheel 11 and eccentric wheel driver framework 12
Dynamic, recycling check valve 6, check valve of water drainage 7 cooperate its movement by the utility model action sequence by eccentric wheel mechanism.So i.e.
Pressurization and recycling function can be achieved.
Embodiment 5
This example illustrates embodiment of the energy recovery pump in water treatment system.As shown in figure 8, energy regenerating pump water inlet
Check valve 4 connects former pond 14 by pipeline, and for pressurization check valve 5 by reversed 17 water inlet of permeable membrane element of pipeline, recycling is unidirectional
Valve 6 connects wastewater disposal basin 15, reverse osmosis membrane assembly by pipeline by reversed 17 concentrated water spout of permeable membrane element of pipeline, check valve of water drainage 7
It is practiced midwifery pond 16 by pipeline at the 17 production mouths of a river.
During water inlet, connecting rod 3 drives diaphragm 2 to move right, so that pressurization cavity pressure reduces.When pressurizing chamber pressure is low
When external pressure, water feeding one-way valve 4 is opened, and the raw water in former pond 14 enters in booster cavity.Meanwhile check valve of water drainage
7 open, and the concentrated water in reclaiming chamber is discharged in wastewater disposal basin 15.This process is pressurized check valve 5, recycling check valve 6 is in and closes
State.
In pressurization, recycling check valve 6 is opened, and makes to press inside reclaiming chamber, booster cavity and reverse osmosis membrane group 17.Connecting rod
3 drive diaphragms 2 move downward, so that pressurization cavity pressure continues to increase.When pressurizing chamber pressure is higher than the pressure of reverse osmosis membrane group 17
When power, pressurization check valve 5 is opened, and the pressurization raw water in booster cavity enters in reverse osmosis membrane group 17.It is pressurized raw water a part
Become fresh water by reverse osmosis membrane and flow to fresh-water pool 16, another part then becomes high pressure concentrated water and enters in reclaiming chamber.This process
Water feeding one-way valve 4, check valve of water drainage 7 are in close state.
Water inlet is repeated with pressurization, and lasting production water can be realized.
Claims (7)
1. a kind of energy recovery pump for reverse osmosis water treatment system, which is characterized in that including the pump housing (1), be set to the pump housing (1)
The pump housing (1) is divided into booster cavity and returned by interior diaphragm (2) and the connecting rod (3) being connected with diaphragm (2), the diaphragm (2)
Chamber two parts are received, the connecting rod (3) is set in reclaiming chamber, and the booster cavity side is respectively equipped with water feeding one-way valve (4) and pressurization
Check valve (5), the reclaiming chamber side are respectively equipped with recycling check valve (6) and check valve of water drainage (7),
The connecting rod (3) drives diaphragm (2) to move back and forth in the pump housing (1), and raw water enters booster cavity by water feeding one-way valve (4)
Afterwards, then by pressurization check valve (5) enter the water inlet of reverse osmosis membrane assembly, waste water passes through from the concentrated water spout of reverse osmosis membrane assembly
It recycles check valve (6) and enters reclaiming chamber, then be discharged by check valve of water drainage (7), by control recycling check valve (6) and drained
Check valve (7) open or close, and realize energy regenerating and reduce the pressure difference of diaphragm (2) two sides.
2. a kind of energy recovery pump for reverse osmosis water treatment system according to claim 1, which is characterized in that described
Connecting rod (3), the movement for recycling check valve (6) and check valve of water drainage (7) can be controlled, and their action sequence are as follows:
Before pressurization starts, the connecting rod (3) be located at its can operating space right end, the recycling check valve (6) is in
Closed state, the check valve of water drainage (7) are in the open state；
After pressurization starts, the connecting rod (3) moves from right to left, and the recycling check valve (6) is opened, and the draining is unidirectional
Valve (7) is closed, and pressurization continues to connecting rod (3) to run to left end；
Before water inlet process starts, the connecting rod (3) be located at its can operating space left end, the recycling check valve (6) is in
Open state, the check valve of water drainage (7) are in close state；
After water inlet process starts, the connecting rod (3) moves from left to right, and the recycling check valve (6) is closed, and the draining is unidirectional
Valve (7) is opened, and water inlet process continues to connecting rod to run to right end；
The recycling check valve (6) and check valve of water drainage (7) unlatching or late release in advance during above-mentioned pressurization or water inlet.
3. a kind of energy recovery pump for reverse osmosis water treatment system according to claim 1, which is characterized in that described
It recycles check valve (6) and check valve of water drainage (7) uses solenoid valve, or use motor-driven cam mechanism or eccentric wheel mechanism
The movement of recycling check valve (6) and check valve of water drainage (7) is controlled.
4. a kind of energy recovery pump for reverse osmosis water treatment system according to claim 1, which is characterized in that described
Diaphragm (2) is pressure restraining element, and bearing capacity is in 0.1-0.5MPa.
5. a kind of energy recovery pump for reverse osmosis water treatment system according to claim 1, which is characterized in that can adopt
Piston with bearing capacity no more than 1MPa replaces diaphragm (2).
6. a kind of energy recovery pump for reverse osmosis water treatment system according to claim 1, which is characterized in that described
Connecting rod (3) connects driving unit, and the driving unit uses motor-driven cam mechanism, eccentric wheel mechanism or crank connecting link machine
Structure.
7. a kind of energy recovery pump for reverse osmosis water treatment system according to claim 1, which is characterized in that described
Water feeding one-way valve (4) passes through piping connection wastewater disposal basin (15) by piping connection former pond (14), the check valve of water drainage (7),
The water inlet of pressurization check valve (5) connection reverse osmosis membrane assembly (17), the recycling check valve (6) connect reverse osmosis membrane group
The concentrated water spout of part (17), the production water of reverse osmosis membrane assembly (17), which is passed through, produces pond (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820385689.8U CN208229668U (en) | 2018-03-21 | 2018-03-21 | A kind of energy recovery pump for reverse osmosis water treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820385689.8U CN208229668U (en) | 2018-03-21 | 2018-03-21 | A kind of energy recovery pump for reverse osmosis water treatment system |
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| Publication Number | Publication Date |
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| CN208229668U true CN208229668U (en) | 2018-12-14 |
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ID=64589479
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| CN201820385689.8U Expired - Fee Related CN208229668U (en) | 2018-03-21 | 2018-03-21 | A kind of energy recovery pump for reverse osmosis water treatment system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108176227A (en) * | 2018-03-21 | 2018-06-19 | 上海坤释流体科技有限公司 | A kind of energy recovery pump and its application for reverse osmosis water treatment system |
-
2018
- 2018-03-21 CN CN201820385689.8U patent/CN208229668U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108176227A (en) * | 2018-03-21 | 2018-06-19 | 上海坤释流体科技有限公司 | A kind of energy recovery pump and its application for reverse osmosis water treatment system |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
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Granted publication date: 20181214 Termination date: 20210321 |