CN105883977A - Energy recycling small seawater desalting plant matched with plunger pumps - Google Patents
Energy recycling small seawater desalting plant matched with plunger pumps Download PDFInfo
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- CN105883977A CN105883977A CN201610479415.0A CN201610479415A CN105883977A CN 105883977 A CN105883977 A CN 105883977A CN 201610479415 A CN201610479415 A CN 201610479415A CN 105883977 A CN105883977 A CN 105883977A
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- Prior art keywords
- plunger
- energy regenerating
- displacement pump
- bent axle
- cylinder
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Classifications
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- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
- F04B17/03—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B23/00—Pumping installations or systems
- F04B23/04—Combinations of two or more pumps
- F04B23/06—Combinations of two or more pumps the pumps being all of reciprocating positive-displacement type
-
- 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
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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
Abstract
The invention relates to an energy recycling small seawater desalting plant matched with plunger pumps. The energy recycling small seawater desalting plant has the advantages that the energy recycling plunger pump and a following switching cylinder are matched with each other to form an energy recycling device, recycled energy can be transmitted to the main plunger pump via crankshafts which are connected with the energy recycling plunger pump, the following switching cylinder and the main plunger pump, accordingly, the purpose of recycling the energy can be achieved, the energy recycling device is suitable for small seawater desalting systems, and the energy recycling small seawater desalting plant is low in input cost, high in energy recycling rate and easy to popularize and utilize.
Description
Technical field
The present invention relates to reverse osmosis seawater desalting field, particularly relate to a kind of and small-sized sea of energy regenerating of plunger displacement pump cooperation
Water desalination apparatus.
Background technology
Owing to the shortage of fresh water, desalination technology and desalinization industry are in fast development.The reality of desalinization at present
Two kinds are substantially had: full-boiled process and hyperfiltration by method.Hyperfiltration is by sea water after pretreatment, is pressurized to several MPa, then
Enter in the semi-transparent membrane tube of nanometer, overcome osmotic pressure to penetrate into the outer process becoming fresh water of pipe under pressure, finally will not
The concentrated seawater of infiltration is drained, and wherein fresh water accounts for 40%, and concentrated seawater accounts for 60%.
One important goal of desalination technology development is to reduce operating cost, energy consumption institute in the composition of operating cost
The proportion accounted for is maximum, and reducing energy consumption is to reduce the maximally effective means of desalinization cost.Reverse osmosis seawater desalting (SWRO) is mesh
One of mainstream technology of front desalinization, reverse osmosis seawater desalting process need to consume a large amount of electric energy improve intake pressure (6～
7MPa) to overcome the osmotic pressure of water, the concentrated seawater overbottom pressure discharged in reverse osmosis membrane tube is up to 5.5～6.5 MPa, according to 40%
The response rate calculates, and also contains the feed water pressure energy of about 50% in the strong brine of discharge, this part energy is reclaimed and becomes
Water inlet energy can be greatly reduced the energy consumption of reverse osmosis seawater desalting, and the realization of this target depends on pressure energy recovery technology
Utilization.
Considerably reduced the production cost of desalination water by the application of pressure energy retracting device, promote reverse osmosis light
The promotion and application of change technology, and make most competitiveness and desalination technology with the fastest developing speed.Therefore, pressure
Energy regenerating and reverse osmosis membrane and high-pressure pump become the big key technology of three in reverse osmosis seawater desalination system side by side.
20 century 70s, along with reverse osmosis technology starts the desalination for sea water/bitter, external various forms of energy
Amount retracting device occurs in succession.Energy recycle device is divided into two classes, i.e. hydraulic turbine formula and Work-exchange type generally.
Energy recycle device the earliest is hydraulic turbine formula, the PehonWheel turbine of Calder.AG company of Switzerland and
The Francis turbine of Pump Ginard company, efficiency is generally 50%～70%.Its principle is to utilize the pressure of strong brine
Driving turbine rotation, be connected with pump and motor by axle, be delivered to energy feed former sea water, process needs through " water pressure energy
→ mechanical energy → water pressure energy " two step conversions.This mode, inefficient, generally 50%～70%, and processing request is high, valency
Lattice are high.
The eighties in 20th century occurs in that a kind of new Energy Recovery Technology, and its operation principle is " merit exchange ", passes through interface
Or spacer (piston), directly give charging sea water the pressure transmission of high-pressure thick saline, process is simplified, it is only necessary to pass through
The one step energy conversion of " water pressure energy → water pressure energy ", energy recovery efficiency is improved, and can reach more than 90%.But due to stream
The transition of amount, valve need to frequently be opened, be closed, and causes the valve life-span short, and merit exchanger cost is high, poor reliability.
From the point of view of the market of current desalinization, Miniature seawater desalination device is owing to input cost is low, volume is little, use
The advantages such as convenience, mobility and favored by market, be especially suitable for the short term need desalinization such as spitkit, island and set
Standby place uses, and the most small-sized sea water desalting equipment has a boundless market prospect, but the energy of existing desalinization
Amount recovery technology is only applicable to medium-scale above energy recycle device, and traditional large-scale sea water desalting equipment is due to power not
With, and equipment investment is relatively big, is not particularly suited for the energy regenerating of small-sized sea water desalting equipment.
Existing small-sized desalinization pump, is all plunger displacement pump transformation, owing to plunger displacement pump is single-acting pump, high-pressure thick sea water
The plunger back side can not be entered, it is impossible to enough directly coordinate with retracting device.
Summary of the invention
For the deficiency of existing energy regenerating small-sized sea water device, it is an object of the invention to provide one and be applicable to post
The energy regenerating Miniature seawater desalination device of plug pump.
In order to achieve the above object, the technical solution used in the present invention is as follows:
The energy regenerating Miniature seawater desalination device that a kind of and plunger displacement pump coordinates, including bent axle, the two ends of described bent axle connect
On bearing block, described bent axle connects main plunger pump, energy regenerating plunger displacement pump, and described bent axle is also associated with motor,
Described driven by motor bent axle rotates；Described main plunger pump includes principal post plug cylinder, connecting rod and slide block, in described principal post plug cylinder
Having main plunger, described slide block to be contained in slideway, one end of described connecting rod connects slideway, and the other end of connecting rod connects bent axle,
The front end of described principal post plug cylinder is provided with two check valves, and described check valve connects a water inlet pipe and an outlet pipe, warp
Cross check valve to be connected with the import of reverse osmosis membrane at the other end of outlet pipe；Described energy regenerating plunger displacement pump includes that energy returns
Receive plunger case, connecting rod and slide block, in described energy regenerating plunger case, have energy regenerating plunger, described slide block to be contained in slideway
In, one end of described connecting rod connects slideway, and the other end of connecting rod connects bent axle, also include one with step diverter cylinder, described
With step diverter cylinder include cylinder body, piston, with step switching piston bar, slide block and connecting rod, described piston in cylinder body, described cunning
Packaged in slideway, one end of described connecting rod connects slideway, and the other end of connecting rod connects bent axle, described with step switching piston
One end of bar connects cylinder body, and the other end connects bent axle by slide block and connecting rod；Described have one with the middle part in step diverter cylinder
Perforate, described perforate is connected with one end of energy regenerating plunger displacement pump by connecting tube, and described one end with step diverter cylinder is even
Connecing bent axle, the other end enters pipe by concentrated seawater and is connected with the outlet of reverse osmosis membrane；Described with the centre of step diverter cylinder
It is provided with the access way of concentrated seawater, bottom described one end with step diverter cylinder, is additionally provided with an outlet；Described main plunger
Pump, energy regenerating plunger displacement pump and with step diverter cylinder is connected on same bent axle.
Preferably, described main plunger pump and the phase contrast of energy regenerating plunger displacement pump are 180 °；Energy regenerating plunger displacement pump and
With the phase contrast of step diverter cylinder is 90 °.
Preferably, described connect main plunger pump, energy regenerating plunger displacement pump and the bent axle with step diverter cylinder are three-throw crankshafts.
Preferably, described bent axle has crank, the Angle ambiguity main plunger pump of described crank, energy regenerating plunger displacement pump
The phase place of middle plunger and with the phase place of piston in step diverter cylinder.
Preferably, described with driving piston to the left and right under the rotation of bent axle with step switching piston bar in step diverter cylinder
Reciprocating.
Preferably, according to the 30-40% of fresh water productivity, the sectional area of the plunger of described energy regenerating plunger displacement pump is principal post
The 70-60% of the sectional area of plug pump.
Concrete operation principle is:
Main plunger pump, energy regenerating plunger displacement pump and with step diverter cylinder three is incorporated on same bent axle, this bent axle is one
Three-throw crankshaft, the two ends of bent axle are connected on bearing block, and equipped with motor on bent axle, motor makes crank rotation, the rotational band of bent axle
Having moved the connecting rod being connected to move reciprocatingly, connecting rod drives slide block movement, and therefore, it is past that the rotation of bent axle has driven main plunger pump to do
Multiple motion.The pump head of main plunger pump, with two check valves, controls new Seawater inhalation and extrusion；The new sea water of high pressure enters reverse osmosis
Film, oozing out 30-40% becomes fresh water, and 70-60% becomes high-pressure thick sea water, is flow to step diverter cylinder by connecting tube；
The high-pressure thick sea water come from reverse osmosis membrane is entered in cylinder, in step diverter cylinder by the concentrated seawater entrance pipe with step diverter cylinder
Piston equally under the drive of bent axle, move reciprocatingly, when piston movement is to when connecting on the right of the mouth of pipe, be that high-pressure thick sea water enters
Enter in energy regenerating plunger displacement pump, energy regenerating plunger can be given pressure, promote plunger；When piston movement is to connecting the mouth of pipe left side
Time, it is that low-press thick sea water is discharged from the outlet with set by step diverter cylinder lower end；Therefore, there is energy in the cylinder of energy regenerating plunger displacement pump
Reclaim plunger, entered in cylinder by water inlet pipe from the high-pressure thick sea water come with step diverter cylinder, promote plunger to turn right motion, high-pressure thick
The energy of sea water gives plunger, and plunger transfers energy to, on bent axle, be delivered to main plunger by bent axle through slide block-connecting rod
The plunger of pump, thus reached the effect of energy regenerating.Design according to the fresh water productivity of 30-40%%, have the concentrated seawater of 70-60%
Discharge, then, the plunger sectional area of energy regenerating plunger displacement pump is the 70-60% of main plunger pump.
Energy regenerating plunger displacement pump and with step diverter cylinder constitutes an energy recycle device, passes through bent axle the energy reclaimed
Give main plunger pump；Energy insufficient section, is supplemented by motor；So, the small-sized sea water of sea water pressurization-energy regenerating it is the formation of
Desalting plant.
The present invention compares the deficiency of existing Miniature seawater desalination device, and it has the beneficial effect that of the present invention
Energy regenerating Miniature seawater desalination device, be on the existing plunger displacement pump being conventionally used for small-sized desalinization repacking use
, it is possible not only to utilize existing desalting plant, it is not necessary to again put into substantial contribution purchase of equipment, and easy to use, energy
The response rate is up to 90%, the utilization in small-sized field of seawater desalination, economical and practical, is suitable to promote.
Accompanying drawing explanation
The present invention will be further described with specific implementation method below in conjunction with the accompanying drawings
Fig. 1 is present configuration top view；
Fig. 2 is the A-A sectional axonometric drawing of the present invention；
Fig. 3 is the B-B sectional axonometric drawing of the present invention；
Fig. 4 is the C-C sectional axonometric drawing of the present invention；
Fig. 5 is the bent axle top view of the present invention and 4 partial views；
Fig. 6 is that embodiments of the invention 2 " duplex plunger displacement pump " the first situation connects schematic top plan view;
Fig. 7 is that embodiments of the invention 2 " duplex plunger displacement pump " the second situation connects schematic top plan view;
Fig. 8 is the connection schematic top plan view of embodiments of the invention 3 " three throw plunger pump ";
Wherein in figure A. main plunger pump B. energy regenerating plunger displacement pump C. with step diverter cylinder
1. motor 2. bearing block 3. bent axle 4. principal post plug cylinder 5. main plunger 6. check valve 7. check valve 8. energy
Amount recovery plunger case 9. energy regenerating plunger 10. cylinder body 11. piston 12. connects with step switching piston bar 13.
Pipe 14. perforate 15. outlet 16. concentrated seawater enters pipe 17. concentrated seawater access way 18. crank
A1. connecting rod a2. slide block a3 slideway b1. connecting rod b2. slide block b3 slideway c1. connecting rod c2. slide block c3 is sliding
Road.
Detailed description of the invention
Embodiment:
Embodiment 1:
According to Fig. 1, the two ends of bent axle 3 are connected on a bearing block, and on bent axle, 3 are also associated with motor 1, and motor 1 carries
Dynamic crankshaft 1 rotates, and connecting on bent axle 3 has a main plunger pump A, an energy regenerating plunger displacement pump B and one with step diverter cylinder
C, the bent axle connecting three is a three-throw crankshaft, has crank 18 on three-throw crankshaft, according to Fig. 1 and Fig. 6, the song of bent axle
The angle of handle controls the phase place of the plunger of main plunger pump, energy regenerating plunger displacement pump and respectively with the phase place of piston in step diverter cylinder,
When bent axle at motor the when of being rotated by, drive a main plunger pump A, an energy regenerating plunger displacement pump B and one with
Step diverter cylinder C does and repeatedly moves；
According to Fig. 2, main plunger pump A includes principal post plug cylinder 4, connecting rod a1 and slide block a2, is having main plunger 5 in plunger case 4,
Slide block a2 is contained in slideway a3, and slideway a3 is fixing, slide block movement to the right, and connecting rod a1 connect, slide block movement to the left side,
Connect with plunger, therefore, the connection rotating through slide block and connecting rod of bent axle, drive the reciprocal acting of main plunger；At principal post
The front end of plug cylinder 4 is provided with two check valves, and check valve 7 connects a water inlet pipe and sucks new sea water, and it is the most extra large that high pressure discharged by check valve 6
Water, is connected with the import of reverse osmosis membrane at the other end of outlet pipe through check valve 6, and main plunger pump is a routine thus
Plunger displacement pump, sucks new sea water, extrudes new sea water and goes reverse osmosis membrane；
According to Fig. 3, Fig. 4, energy regenerating plunger displacement pump B includes energy regenerating plunger case 8, connecting rod b1 and slide block b2, at post
Having energy regenerating plunger 9, slide block b2 to be contained in slideway b3 in plug cylinder 8, slideway b3 is fixing, bent axle rotate through slide block and
The connection of connecting rod, has driven the reciprocal acting of energy regenerating plunger displacement pump B；Energy regenerating plunger displacement pump B also passes through with step diverter cylinder C
A piece connecting tube 13 connects；With step diverter cylinder C include cylinder body 10, piston 11, with step switching piston bar 12, connecting rod c1 and slide block
C2, piston 11 is in cylinder body, and slide block is contained in slideway c3, and one end of connecting rod c1 connects the other end of slideway c3, connecting rod c1 and connects
Bent axle 3, with one end of step switching piston bar 12 connects cylinder body, the other end connects bent axle by slide block and connecting rod；With step diverter cylinder
Interior piston 11, under the drive of bent axle 3, moves back and forth;
Having a perforate 14 with the middle part in step diverter cylinder, perforate 14 is by one end of connecting tube 13 with energy regenerating plunger displacement pump
Connecting, with one end of step diverter cylinder connects bent axle 3, the other end enters pipe 16 by concentrated seawater and is connected with the outlet of reverse osmosis membrane
Connect；With the centre of step diverter cylinder is provided with concentrated seawater access way 17, with being additionally provided with an outlet bottom one end of step diverter cylinder
15, discharge low-press thick sea water；When bent axle 3 rotates, slide block c2 is contained in slideway c3, and slideway c3 is fixing, and slide block movement is extremely
The right, and connecting rod c1 connects, slide block movement is to the left side, with step switching piston bar 12 connects, therefore, bent axle rotate through cunning
Block and the connection of connecting rod, driven the reciprocal acting with step switching piston bar；With step switching piston bar drives about piston reciprocal
Motion, when on the right of the mouth of pipe of piston movement to connecting tube 13, is to promote energy in high-pressure thick sea water enters energy regenerating plunger displacement pump
Amount reclaims plunger 8, provides pressure energy, when piston movement is to when connecting the mouth of pipe left side, is that low-press thick sea water is from energy regenerating plunger
Pump enters with step diverter cylinder is discharged from concentrated seawater outlet 16；High-pressure thick sea water enters energy regenerating plunger case by water inlet pipe
In, promote plunger 8 to turn right motion, the energy of high-pressure thick sea water gives plunger 8, and plunger transfers energy to through slide block-connecting rod
On bent axle 3, the energy reclaimed by 3, bent axle has been delivered to the main plunger 5 of main plunger pump, thus has reached the work of energy regenerating
With.
In order to make the work process desalinized seawater keep stable water pressure, main plunger pump and the phase contrast of energy regenerating plunger displacement pump
Being 180 °, energy regenerating plunger displacement pump and the phase contrast with step diverter cylinder are 90 °, the crank on bent axle control both phase places,
So, when the plunger of energy regenerating plunger displacement pump is in ultra-Left or ultra-Right position, with step switching piston walks to the interposition of cylinder body
Put, i.e. the centre position of the access way of concentrated seawater, it is ensured that the turnover switching of concentrated seawater is stable to be carried out；And when energy regenerating post
When the plunger of plug pump walks to ultra-Right or ultra-Left, main plunger pump, due to the phase 180 ° with energy regenerating plunger displacement pump, works as energy
When recovery plunger walks to ultra-Left or ultra-Right, main plunger walks to the opposite to that other end, just obtains from returning that bent axle transmission comes
The energy received promotes main plunger, and therefore, such phase contrast ensure that the stable operation of whole system.
Design according to the fresh water productivity of 30-40%, have the concentrated seawater of 70-60% to discharge, at main plunger pump and energy regenerating
In the case of the stroke of plunger displacement pump is identical, then, the plunger sectional area of energy regenerating plunger displacement pump is designed as the 70-of main plunger pump
60%, such design improves the utilization rate of energy regenerating；Energy regenerating plunger displacement pump and with step diverter cylinder constitutes an energy
Retracting device, gives main plunger pump the energy reclaimed by bent axle；Energy insufficient section, is supplemented by motor；So, it is formed for
The Miniature seawater desalination device of sea water pressurization-energy regenerating.
Embodiment 2:
Plunger displacement pump, in carrying out desalinization work, in order to reduce water yield fluctuation, is often made with twin-tub, it is simply that often say
" duplex plunger displacement pump ", this is accomplished by two energy regenerating plunger displacement pumps and two and comes with step diverter cylinder and duplex plunger displacement pump coordinates, A1,
A2, B1, B2, C1, C2 are connected on a six throw crankshaft, the operation principle of energy regenerating sea water desalinating unit and embodiment 1 phase
With, but can arrange by following two method:
According to Fig. 6, the first is that duplex plunger displacement pump A1, A2 come centre, respectively arranges a pair energy regenerating plunger displacement pump in both sides
B1, B2 and with step diverter cylinder C1, C2；
According to Fig. 7, the second is that duplex plunger displacement pump A1, A2 come side, and opposite side is arranged by energy regenerating plunger displacement pump B1
Connect with step diverter cylinder C1, energy regenerating plunger displacement pump B2 connect with step diverter cylinder C2, the duplex energy recycle device of composition, difference
Corresponding main plunger pump A1, main plunger pump A2；The second connection and the first connection essence are the same, and energy is not enough
Part, is supplemented by motor.
Embodiment 3:
Fluctuate to preferably reduce the water yield of plunger displacement pump, it is possible to use " three throw plunger pump "；I.e. three plunger displacement pumps (A1,
A2, A3) linked together by a three-throw crankshaft, the phase shifting of these three plunger 120 °；
Using three set energy recycle devices the most 3., (an energy regenerating plunger displacement pump and one are a set of with step diverter cylinder simultaneously.
That is:
1. B1-C1 is, 90 ° of C1 delayed phase B1 phase place；
2. B2-C2 is, 90 ° of C2 delayed phase B2 phase place；
3. B3-C3 is, 90 ° of C3 delayed phase B3 phase place；
The phase shifting of B1, B2, B3 these three plunger 120 °, accordingly, the phase place of C1, C2, C3 these three piston also staggers
The most 3. 120 ° linked together by a six throw crankshaft；
Two bent axles connect into an entirety by the two ends output shaft of two-way output decelerator F.Make three plunger displacement pump correspondences even
Connect, it may be assumed that B1 and A1 misplaces 180 °；B2 and A2 dislocation 180；B3 and A3 misplaces 180 °；
According to Fig. 8, the top half of Fig. 8, be A1, A2, A3 composition three throw plunger pump, the lower part of Fig. 8 be B1, B2,
B3, C1, three energy recycle devices of C2, C3 composition；Wherein: B1 connects C1, B2 and connects C2, B3 connection C3, two bent axles lead to
The two ends output shaft crossing two-way output decelerator connects into an entirety, and bottom recovers energy, and passes to top, energy not foot
Point, motor supplement.
These are only the preferred embodiments of the present invention, certainly, the present invention can also have other various embodiments, without departing substantially from
In the case of present invention spirit and essence, those of ordinary skill in the art can also make according to the present invention and various changing accordingly
Become and deformation, but these change accordingly and deform the scope of the claimed protection that all should belong to the present invention.
Claims (6)
1. the energy regenerating Miniature seawater desalination device coordinated with plunger displacement pump, including bent axle, the two ends of described bent axle are even
Being connected on bearing block, described bent axle connects main plunger pump, energy regenerating plunger displacement pump, and described bent axle is also associated with electricity
Machine, described driven by motor bent axle rotates；Described main plunger pump includes principal post plug cylinder, connecting rod and slide block, described main plunger
Having main plunger, described slide block to be contained in slideway in cylinder, one end of described connecting rod connects slideway, and the other end of connecting rod connects song
Axle, the front end of described principal post plug cylinder is provided with two check valves, and described check valve connects a water inlet pipe and an outlet pipe,
It is connected with the import of reverse osmosis membrane at the other end of outlet pipe through check valve；Described energy regenerating plunger displacement pump includes energy
Reclaim plunger case, connecting rod and slide block, in described energy regenerating plunger case, have energy regenerating plunger, described slide block to be contained in slideway
In, one end of described connecting rod connects slideway, and the other end of connecting rod connects bent axle, it is characterised in that: also include that one is cut with step
Change cylinder, described with step diverter cylinder include cylinder body, piston, with step switching piston bar, slide block and connecting rod, described piston is at cylinder body
In, described slide block is contained in slideway, and one end of described connecting rod connects slideway, and the other end of connecting rod connects bent axle, described
With one end of step switching piston bar connects cylinder body, the other end connects bent axle by slide block and connecting rod；Described with in step diverter cylinder
Middle part have a perforate, described perforate is connected with one end of energy regenerating plunger displacement pump by connecting tube, described cuts with step
The one end changing cylinder connects bent axle, and the other end enters pipe by concentrated seawater and is connected with the outlet of reverse osmosis membrane；Described with step
The centre of diverter cylinder is provided with concentrated seawater access way, is additionally provided with an outlet bottom described one end with step diverter cylinder；Institute
The main plunger pump stated, energy regenerating plunger displacement pump and with step diverter cylinder is connected on same bent axle.
The energy regenerating Miniature seawater desalination device that the most according to claim 1 a kind of and plunger displacement pump coordinates, its feature exists
In: described main plunger pump and the phase contrast of energy regenerating plunger displacement pump are 180 °；Described energy regenerating plunger displacement pump and with step is cut
The phase contrast changing cylinder is 90 °.
The energy regenerating Miniature seawater desalination device that the most according to claim 1 a kind of and plunger displacement pump coordinates, its feature exists
In: described connect main plunger pump, energy regenerating plunger displacement pump and the bent axle with step diverter cylinder are three-throw crankshafts.
The energy regenerating Miniature seawater desalination device that the most according to claim 3 a kind of and plunger displacement pump coordinates, its feature exists
In: have crank on described bent axle, described degree in crank angle control plunger in main plunger pump, energy regenerating plunger displacement pump phase place and
With the phase place of piston in step diverter cylinder.
The energy regenerating Miniature seawater desalination device that the most according to claim 1 a kind of and plunger displacement pump coordinates, its feature exists
In: described with driving piston the most reciprocating under the rotation of bent axle with step switching piston bar in step diverter cylinder.
The energy regenerating Miniature seawater desalination device that the most according to claim 1 a kind of and plunger displacement pump coordinates, its feature exists
In: according to the 30-40% of fresh water productivity, the sectional area that sectional area is main plunger pump of the plunger of described energy regenerating plunger displacement pump
70-60%.
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| CN201610479415.0A CN105883977B (en) | 2016-06-28 | 2016-06-28 | A kind of energy regenerating Miniature seawater desalination device of and plunger pump cooperation |
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| CN201610479415.0A CN105883977B (en) | 2016-06-28 | 2016-06-28 | A kind of energy regenerating Miniature seawater desalination device of and plunger pump cooperation |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107965428A (en) * | 2017-12-03 | 2018-04-27 | 国家海洋局天津海水淡化与综合利用研究所 | Tri-plunger high pressure pump energy recycle device all-in-one machine |
| CN108821390A (en) * | 2018-07-30 | 2018-11-16 | 南京非并网新能源科技有限公司 | A kind of seawater pressurizing device with pressure energy recycling function |
| CN110937659A (en) * | 2019-12-31 | 2020-03-31 | 自然资源部天津海水淡化与综合利用研究所 | Small-sized flashlight-integrated multi-plunger type seawater desalination machine and seawater desalination method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107965428A (en) * | 2017-12-03 | 2018-04-27 | 国家海洋局天津海水淡化与综合利用研究所 | Tri-plunger high pressure pump energy recycle device all-in-one machine |
| CN107965428B (en) * | 2017-12-03 | 2024-02-06 | 自然资源部天津海水淡化与综合利用研究所 | Three plunger high-pressure pump energy recovery device all-in-one |
| CN108821390A (en) * | 2018-07-30 | 2018-11-16 | 南京非并网新能源科技有限公司 | A kind of seawater pressurizing device with pressure energy recycling function |
| CN110937659A (en) * | 2019-12-31 | 2020-03-31 | 自然资源部天津海水淡化与综合利用研究所 | Small-sized flashlight-integrated multi-plunger type seawater desalination machine and seawater desalination method |
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