CN109592745A - A kind of efficient infiltration evaporation seawater desalination system using engine exhaust heat - Google Patents
A kind of efficient infiltration evaporation seawater desalination system using engine exhaust heat Download PDFInfo
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- CN109592745A CN109592745A CN201811275055.8A CN201811275055A CN109592745A CN 109592745 A CN109592745 A CN 109592745A CN 201811275055 A CN201811275055 A CN 201811275055A CN 109592745 A CN109592745 A CN 109592745A
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- seawater
- preheating
- fresh water
- pipeline
- shell
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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
- C02F1/448—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by pervaporation
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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
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/08—Seawater, e.g. for desalination
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/008—Mobile apparatus and plants, e.g. mounted on a vehicle
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/009—Apparatus with independent power supply, e.g. solar cells, windpower, fuel cells
-
- 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 present invention and field of sea water desalting technology, more particularly, to a kind of infiltration evaporation seawater desalination system for efficiently utilizing engine exhaust heat；Including sequentially connected seawater pumping installations, the first seawater preheating device, the second seawater preheating device, heating of seawater device and infiltration evaporation desalination membrane group device and fresh water collecting device.A kind of infiltration evaporation seawater desalination system efficiently utilizing engine exhaust heat proposed by the present invention, no matter in engine high power work or low-power operation, sea water desalination can be realized using engine exhaust heat, and the system connect with engine and engine operating efficiency also can be improved, to which the system may be applicable to the ship for continuing a journey or stopping for a long time in seawater operation for a long time, the sea water desalination of the system is high-efficient, fresh water quality is good, and energy conservation and environmental protection has broad application prospects.
Description
Technical field
The present invention and field of sea water desalting technology efficiently utilize the infiltration evaporation sea of engine exhaust heat more particularly, to a kind of
Water desalination system.
Background technique
Ship continuation of the journey for a long time and the long-term operation of stop at sea are in great demand to fresh water, the fresh water capacity of ship
It is limited, and long-term water is easy to cause bacteria breed, brings numerous unfavorable factors, therefore, people install seawater on ship
Desalination system realizes the desalination of seawater, in order to which people are in the long-term operation of seawater, but seawater desalination system need it is a large amount of
Thermal energy seawater is heated so that seawater produce steam, to realize sea water desalination, therefore often needed on ship
Want the energy substances such as spare a large amount of diesel oil.
When whole ship is advanced, engine power is higher, and engine cool circulating water temperature is higher, and engine cooling water is directly arranged
It removes, waste heat is not utilized effectively, and the prior art has disclosure to realize that sea water desalination is handled using engine exhaust heat, still, past
Toward needing engine in high-power output, just can be achieved to reach vapourizing temperature to heating of seawater.However ship is long-term in seawater
When operation, engine low-power is lower, and the heat of the cooling water of engine output can not realize sea water desalination to heating of seawater, needs
It additionally introduces other energy to heat seawater, without really realizing the purpose of energy-saving and emission-reduction, and is unfavorable for ship in sea
Water long-term operation uses.
Therefore, regarding to the issue above the present invention be badly in need of providing it is a kind of efficiently light using the infiltration evaporation seawater of engine exhaust heat
Change system.
Summary of the invention
The purpose of the present invention is to provide a kind of infiltration evaporation seawater desalination systems for efficiently utilizing engine exhaust heat, pass through
Kind is efficiently existed using the design of the infiltration evaporation seawater desalination system of engine exhaust heat with solving ship existing in the prior art
When seawater long-term operation, engine low-power is lower, and the heat of the cooling water of engine output can not realize sea to heating of seawater
Water desalination, needs to additionally introduce other energy and heats to seawater, without really realizing the purpose of energy-saving and emission-reduction, and is unfavorable for
Ship uses technical problem in seawater long-term operation.
A kind of infiltration evaporation seawater desalination system efficiently utilizing engine exhaust heat provided by the invention, including infiltration evaporation
Desalination membrane group device, it is defeated that infiltration evaporation desalination membrane group device is equipped with seawater input port, steam output end mouth and dense salt waste water
Exit port；
Seawater input port be connected to by seawater transfer pipeline with seawater pumping installations, steam output end mouth pass through pipeline and
Fresh water collecting device connection；
Seawater transfer pipeline between seawater pumping installations and seawater input port has been sequentially communicated the first sea on from left to right
Water pre-heater apparatus, the second seawater preheating device and heating of seawater device；
First seawater preheating device is equipped with steam input port and fresh water output port；Steam input port passes through pipeline
It is connected to steam output end mouth, fresh water output port is connected to by pipeline with fresh water collecting device；
Second seawater preheating device is equipped with dense salt waste water input port and dense salt discharge of wastewater port, dense salt waste water input
Port is connected to by strong brine transfer pipeline with dense salt waste water output port, and dense salt waste water is also connected on strong brine transfer pipeline
Delivery pipe, dense salt wastewater discharge pipe are equipped with flow control valve；
Heating of seawater device be equipped with remaining hot water input port and remaining hot water output port, remaining hot water input port with start
The cooling water output port of cooling waster vat in machine is connected to, the cooling water of remaining hot water output port and in-engine cooling waster vat
Input port connection, the interior temperature that is equipped with of the pipeline that remaining hot water output port is connected to the cooling water input port of cooling waster vat measure
Device；
Fresh water output port also passes through pipeline and is connected to the air inlet on steam extraction pumping installations.
It preferably, further include controller, flow control valve is flow electric controlled regulating valve, and temperature measuring device is temperature sensing
Device, temperature measuring device and flow control valve are electrically connected with the controller.
Preferably, steam extraction pumping installations is placed in the seawater transfer pipeline between seawater delivery pump and the first seawater preheating device
On；Steam extraction pumping installations includes steam extraction pumping shell, and steam extraction, which pumps, is equipped with steam extraction pump and seawater injection pump, steam extraction pumping in shell
Shell is equipped with air intake, venthole, water inlet pipe and outlet pipe, and air intake and venthole pass through pipeline respectively and steam extraction pump connects
Logical, air intake is also connected to fresh water output port, venthole and air communication, and water inlet pipe and outlet pipe are injected pump with seawater and connected
Logical, water inlet pipe and outlet pipe are also connected to seawater transfer pipeline respectively；
First seawater preheating device include first preheating shell, first preheating shell in be equipped with the first preheating chamber, first
The first seawater preheating delivery pipe being connected to seawater transfer pipeline, steam input port and fresh water output end are equipped in preheating chamber
Mouth is connected to the first preheating chamber；
Second seawater preheating device include second preheating shell, second preheating shell in be equipped with the second preheating chamber, second
The second seawater preheating delivery pipe being connected to seawater transfer pipeline is equipped in preheating chamber, dense salt waste water input port and dense salt are useless
Water discharge port is connected to the second preheating chamber；
Heating of seawater device includes heating of seawater shell, and heating chamber is equipped in heating of seawater shell, is set in heating chamber
There is a heating of seawater delivery pipe being connected to seawater transfer pipeline, remaining hot water input port and remaining hot water output port are and heating chamber
Room connection；
Infiltration evaporation desalination membrane group device includes vacuum separation shell, is equipped with seawater vaporization chamber in vacuum separation shell,
It is equipped in seawater vaporization chamber multiple in the sea water filter membrane component being arranged in parallel；Sea is equipped on each sea water filter membrane component
Water desalinates entrance and hot strong brine outlet；Each sea water desalination entrance is connected to seawater input port, each hot strong brine outlet
It is connected to strong brine output port.
Preferably, dense salt discharge of wastewater port is connected to by pipeline with ocean；Dense salt wastewater discharge pipe is connected to ocean.
Preferably, the pump intake on seawater pumping installations is connected to source of seawater, the pump intake on seawater pumping installations and sea
The pipeline of water source connection is equipped with filter, and filter screen is equipped in filter, and the aperture of filter screen is 5-10 μm.
Preferably, vacuum tank is also communicated on the pipeline that fresh water output port is connected to air intake.
Preferably, fresh water collecting device includes fresh water collecting case, and fresh water collecting case is equipped with fresh water entrance, and fresh water entrance is logical
It crosses fresh water collecting pipe to be connected to fresh water output port, fresh water collecting pipe is pumped equipped with fresh water collecting.
Preferably, the bottom of vacuum separation shell is equipped with hot well, and condensation water collection trench bottom is equipped with perforation
Collection port, collection port are connected to by pipeline with fresh water collecting pipe.
Preferably, salinometer is equipped in the pipeline between fresh water collecting case and fresh water collecting pump.
Preferably, insulating layer is equipped with outside the first preheating shell, the second preheating shell and heating of seawater shell.
A kind of infiltration evaporation seawater desalination system and prior art phase efficiently utilizing engine exhaust heat provided by the invention
Than with following progress:
1, the efficient infiltration evaporation seawater desalination system using engine exhaust heat provided by the invention, can adequately utilize
Engine exhaust heat and the waste heat itself generated heat seawater, without introducing other heating equipments, can be realized to seawater
Desalt processing, the system energy consumption is low, and space occupied is small, and fresh water output capacity is higher, and quality is good, can meet ship for a long time continue a journey
Demand of the operation to fresh water is at sea stopped for a long time, it can also be used to which the insufficient island of power supply use.
2, the efficient infiltration evaporation seawater desalination system using engine exhaust heat provided by the invention, seawater vapourizing temperature compared with
It is low, it can complete that the desalt processing to seawater can be realized using engine exhaust heat, without introducing other heating equipments, even if
When engine low-power exports, the heating to seawater is also may be implemented in the waste heat that engine generates, meanwhile, the system and engine
Connection, can also improve the working efficiency of engine, and engine guarantees the abundant of engine interior fuel in low-power operation
Burning, improves the working efficiency of engine, reduces the consumption of fuel, improve the working efficiency of engine.
3, the efficient infiltration evaporation seawater desalination system using engine exhaust heat provided by the invention is measured by temperature and is filled
The design being electrically connected with the controller with flow control valve is set, the automatic control efficiently exported to engine power may be implemented
System；The minimum predetermined value of temperature value and the input of preset engine cooling water that controller is measured according to temperature measuring device and most
High preset value compares, and edits flow control signal and start to adjust and enter in the second seawater preheating device to flow control valve
The input quantity of high-salt wastewater, when the temperature value of temperature measuring device measurement is greater than highest preset value, controller controls flow tune
Valve is saved, the input quantity of high-salt wastewater in the second seawater preheating device is lowered into, when the temperature value of temperature measuring device measurement is small
When minimum predetermined value, controller controls flow control valve, increases the input for entering high-salt wastewater in the second seawater preheating device
Amount, and then guarantee the efficient output of engine power, full combustion engine interior fuel improves engine operating efficiency,
At the same time it can also reduce environmental pollution.
4, the efficient infiltration evaporation seawater desalination system using engine exhaust heat provided by the invention, pumps shell by steam extraction
It is equipped with vacuum chamber in vivo, is equipped with seawater in vacuum chamber and pumps, seawater pumping line one end is connected to seawater pumping installations, another
End is connected to the first seawater preheating device, and it is defeated that steam extraction pumping shell is equipped with the air intake and steam being connected to respectively with vacuum chamber
Exit port, air intake are connected to fresh water output port, and steam extraction pump is equipped in vacuum chamber, is equipped with seawater high pressure in seawater pumping line
The design of jet pump can accelerate the flowing velocity of seawater, improve the desalination rate of seawater, meanwhile, steam extraction pump can also will be light
The uncooled water vapour of water output port discharge and is discharged in sky vapour from steam extraction pumping shell is pumped into, and can be reduced and is
The pressure for internal duct of uniting, guarantee equipment using safe, while sky vapour being avoided to enter infiltration evaporation from fresh water output port
In desalination membrane group device, penetration of sea water vaporization is influenced, guarantees the steam pressure difference of infiltration evaporation desalination membrane group device.
5, the efficient infiltration evaporation seawater desalination system using engine exhaust heat provided by the invention is pumped by seawater and is filled
It sets and is equipped with filter between source of seawater, filter screen, the design that the aperture of filter screen is 5-10 μm, for preventing are equipped in filter
Seaweed, marine pollutant etc. block the components such as pipeline, valve.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is the process flow of the heretofore described efficient infiltration evaporation seawater desalination system using engine exhaust heat
Figure；
Fig. 2 is the structural schematic diagram (cross-sectional view) of heretofore described steam extraction pumping installations；；
Fig. 3 is the structural schematic diagram (cross-sectional view) of heretofore described first seawater preheating device；
Fig. 4 is the structural schematic diagram (cross-sectional view) of heretofore described second seawater preheating device；
Fig. 5 is the structural schematic diagram (cross-sectional view) of heretofore described infiltration evaporation desalination membrane group device；
Fig. 6 is the structural schematic diagram (cross-sectional view) of heretofore described sea water filter membrane component；
Fig. 7 is the infiltration evaporation seawater desalination system electric appliance connection relationship block diagram for efficiently utilizing engine exhaust heat.
Description of symbols:
1- infiltration evaporation desalination membrane group device；101- seawater input port；102- steam output end mouth；The dense salt waste water of 103-
Output port；105- seawater vaporization chamber；106- sea water filter membrane component；107- sea water desalination entrance；The hot strong brine row of 108-
Outlet；2- seawater pumping installations；3- fresh water collecting device；31- fresh water collecting case；32- fresh water entrance；33- fresh water collecting pipe；
34- fresh water collecting pump；4- the first seawater preheating device；41- steam input port；42- fresh water output port；43- first is preheated
Shell；The first preheating chamber of 44-；45- the first seawater preheating delivery pipe；5- the second seawater preheating device；6- heating of seawater device；
61- remaining hot water input port；62- remaining hot water output port；63- heating of seawater shell；64- heating chamber；The dense salt waste water of 51- is defeated
Inbound port；52- dense salt discharge of wastewater port；53- second preheats shell；The second preheating chamber of 54-；The second seawater preheating of 55- is defeated
Send pipe；7- strong brine transfer pipeline；The dense salt wastewater discharge pipe of 8-；9- flow control valve；The cooling water of 172- cooling waster vat inputs
Port；171- cooling water output port；10- temperature measuring device；11- steam extraction pumping installations；111- steam extraction pumps shell；112-
Water inlet pipe；113- outlet pipe；114- air intake；115- venthole；116- steam extraction pump；117- seawater injects pump；65- heating of seawater
Delivery pipe；12- source of seawater；13- filter；14- vacuum tank；15- hot well；16- collection port.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
Personnel's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation,
It is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
As shown in Figure 1, one of the present embodiment efficiently utilizes the infiltration evaporation seawater desalination system of engine exhaust heat, packet
Infiltration evaporation desalination membrane group device 1 is included, infiltration evaporation desalination membrane group device 1 is equipped with seawater input port 101, steam output end
Mouth 102 and dense salt waste water output port 103；Seawater input port 101 is connected by seawater transfer pipeline and seawater pumping installations 2
Logical, steam output end mouth 102 is connected to by pipeline with fresh water collecting device 3；Seawater pumping installations 2 and seawater input port 101
Between seawater transfer pipeline the first seawater preheating device 4, the second seawater preheating device 5 and seawater have been sequentially communicated on from left to right
Heating device 6, the first seawater preheating device 4 be also placed in infiltration evaporation desalination membrane group device 1 be connected between fresh water collecting device 3
On pipeline；First seawater preheating device 4 is equipped with steam input port 41 and fresh water output port 42；Steam input port 41 is logical
It crosses pipeline to be connected to steam output end mouth 102, fresh water output port 42 is connected to by pipeline with fresh water collecting device 3；Second sea
Water pre-heater apparatus 5 is equipped with dense salt waste water input port 51 and dense salt discharge of wastewater port 52, and dense salt waste water input port 51 is logical
It crosses strong brine transfer pipeline 7 to be connected to dense salt waste water output port 103, dense salt waste water is also connected on strong brine transfer pipeline 7
Delivery pipe 8, dense salt wastewater discharge pipe 8 are equipped with flow control valve 9；Heating of seawater device 6 is equipped with remaining hot water input port 61
With remaining hot water output port 62, the cooling water output port 171 of remaining hot water input port 61 and in-engine cooling waster vat connects
Logical, remaining hot water output port 62 is connected to the cooling water input port 172 of in-engine cooling waster vat, remaining hot water output port
Temperature measuring device 10 is equipped in 62 pipelines being connected to the cooling water input port 172 of cooling waster vat；Fresh water output port 42
Also it is connected to by pipeline with the air intake 114 on steam extraction pumping installations 10.
Seawater input port 101 of the present invention is connected to by seawater transfer pipeline with seawater pumping installations 2, can introduce seawater
Into infiltration evaporation desalination membrane group device 1, what steam output end mouth 102 was connected to by pipeline with fresh water collecting device 3, it will permeate
The seawater vaporized in desalination membrane group device 1 carries out desalt processing, vaporizes fresh water from steam output end mouth 102 and enters fresh water collecting
It is collected in device 3, unboiled dense sea brine is discharged through dense salt waste water output port 103.Pass through seawater pumping installations 2 and seawater
Seawater transfer pipeline between input port 101 has been sequentially communicated the first seawater preheating device 4, the second seawater preheating on from left to right
Device 5 and heating of seawater device 6, the first seawater preheating device 4 is also placed in infiltration evaporation desalination membrane group device 1 and fresh water collecting fills
The design on pipeline being connected between setting 3 realizes the level-one preheating to seawater, second level preheating, is heated to needing infiltration evaporation temperature,
Realize the infiltration evaporation sea water desalination processing of seawater, wherein infiltration evaporation desalination membrane is also placed in by the first seawater preheating device 4
On the pipeline being connected between group device 1 and fresh water collecting device 3；First seawater preheating device 4 is equipped with 41 He of steam input port
Fresh water output port 42；Steam input port 41 is connected to by pipeline with steam output end mouth 102, and fresh water output port 42 passes through
Steam in infiltration evaporation desalination membrane group device 1 can be introduced into the first seawater by the design that pipeline is connected to fresh water collecting device 3
In preheating device 4, first time preheating is carried out to seawater by the heat of steam condensation release, at the same time it can also pass through introducing
Seawater condenses steam, it is made to be condensed into fresh water, no longer needs to be introduced separately into installation for steam condensation, reduces manufacturing cost, reduces sea
Water desalination system space occupied.Dense salt waste water input port 51 is equipped with by the second seawater preheating device 5 and dense salt waste water is arranged
Port 52 is put, dense salt waste water input port 51 is connected to by strong brine transfer pipeline 7 with dense salt waste water output port 103, dense salt
Dense salt wastewater discharge pipe 8 is also connected on water transfer pipeline 7, dense salt wastewater discharge pipe 8 is equipped with the design of flow control valve 9,
The dense salt waste water that dense salt waste water output port 103 flows out can be transported in two seawater preheating devices 5, to the seawater to be desalinated
Second is carried out to preheat, it is effective using discarded heat, it achieves the purpose of energy saving, flow control valve 9 can control heat
Strong brine enters the amount of the second seawater preheating device 5, is regulated and controled by flow control valve 9 to the second seawater preheating device to realize
The preheating temperature for being also in 5.It is equipped with remaining hot water input port 61 and remaining hot water output port 62 by heating of seawater device 6,
Remaining hot water input port 61 is connected to the cooling water output port 171 of in-engine cooling waster vat, remaining hot water output port 62
It is connected to the cooling water input port 172 of in-engine cooling waster vat, the cooling of remaining hot water output port 62 and cooling waster vat
It is equipped with the design of temperature measuring device 10 in the pipeline that water input port 172 is connected to, realizes and utilizes engine cooling water release
Heat carries out heat treatment to seawater, its seawater is made to reach vapourizing temperature, to realize the desalination of seawater, can be surveyed using temperature
Amount device 10 is measured the water temperature of remaining hot water output port 62, is controlled by control flow control valve 9 into engine
The temperature of interior cooling water, Lai Shixian engine interior full combustion, guarantees the output of engine high-efficiency, in engine high power
When work, the cooling water temperature of generation is higher, it is therefore desirable to the cooling water temperature of heating of seawater device 6, by adjusting flow
Regulating valve 9 reduces the amount of the dense salt waste water flowed into the second seawater preheating device 5, to reduce from the second seawater preheating device 5
The temperature of interior outflow seawater, cools down to the engine cooling water in heating of seawater device 6, guarantees remaining hot water output port 62
The water temperature of the cooling water of output is lower than the upper limit value of engine design requirement, when the output of engine low-power, is flowed by adjusting
Adjustable valve 9 increases the amount of the dense salt waste water flowed into the second seawater preheating device 5, fills to increase from the second seawater preheating
The temperature for setting outflow seawater in 5, cools down to the engine cooling water in heating of seawater device 6, guarantees remaining hot water output end
The water temperature of the cooling waters of 62 output of mouth is higher than the lower limit value of engine design requirement, in this way, will not make engine coolant temperature
It spends low, causes the burn incompletely for starting fuel；Also pass through pipeline and steam extraction pumping installations by fresh water output port 42
10 connection designs, realize that 1 internal negative pressure state of infiltration evaporation desalination membrane group device realizes the vaporization of seawater by pressure difference.It should
System is lower to seawater vapourizing temperature, can complete that the desalt processing to seawater can be realized using engine exhaust heat, without drawing
Enter other heating equipments, even if the waste heat that engine generates also may be implemented to add seawater in the output of engine low-power
Heat, meanwhile, which connect with engine, can also improve the working efficiency of engine, guarantees engine in low-power operation
When, guarantee the full combustion of engine interior fuel, save the energy, reduces environmental pollution, the seawater yield which prepares
Height, quality are good, capable of direct drinking, which can meet ship continuation of the journey for a long time and long-term need of the stop operation to fresh water at sea
It asks, it can also be used to which the insufficient island of power supply use.
As shown in Figure 1, Figure 7 shows, the present embodiment further includes controller, and flow control valve 9 is flow electric controlled regulating valve, and temperature is surveyed
Amount device 10 is temperature sensor, and temperature measuring device 10 and flow control valve 9 are electrically connected with the controller.
The present invention passes through the design that temperature measuring device 10 and flow control valve 9 are electrically connected with the controller, and may be implemented
Automatic control to engine high power output；The temperature value and preset engine that controller is measured according to temperature measuring device 10 are cold
But the minimum predetermined value of water input compares with highest preset value, and edits flow control signal and start to adjust to flow control valve 9
Section enters the input quantity of high-salt wastewater in the second seawater preheating device 5, when the temperature value that temperature measuring device 10 measures is greater than most
When high preset value, controller controls flow control valve 9, is lowered into the input quantity of high-salt wastewater in the second seawater preheating device 5,
When the temperature value that temperature measuring device 10 measures is less than minimum predetermined value, controller controls flow control valve 9, increases and enters the
The input quantity of high-salt wastewater in two seawater preheating devices 5, and then guarantee the efficient output of engine power, full combustion is started
Machine inner fuel improves engine operating efficiency, at the same time it can also reduce environmental pollution.
Controller in the present invention selects the controller of automatic measurement of Yan Hua company production, and temperature measuring device 10 selects Hua Ju electricity
The temperature sensor of son production, intelligent electric regulating valve of the flow control valve 9 using the production of Kai Wo valve company, controller, temperature
Degree sensor and flow control valve are not limited to the model of above-mentioned producer's production, can also select other types of other producer's productions
Number.The controller, the temperature measuring device among the above, itself structure and function of the flow control valve are known
, the present invention is directed to the scheme after protecting above-mentioned electrical part to be integrally electrically connected, above-mentioned electrical part is only to complete signal transmitting
Process, and do not do the processing on software to signal itself.
As shown in Figure 1 and Figure 2, the steam extraction pumping installations 11 in the present embodiment is placed in seawater delivery pump 2 and the first seawater preheating
On seawater transfer pipeline between device 4；Steam extraction pumping installations 11 includes that steam extraction pumps shell 111, is set in steam extraction pumping shell 111
There are steam extraction pump 116 and seawater to inject pump 117, steam extraction pumps shell 111 and is equipped with air intake 114, venthole 115, water inlet pipe 112
With outlet pipe 113, air intake 114 and venthole 115 are connected to by pipeline with steam extraction pump 116 respectively, and air intake 114 is gone back and fresh water
Output port 42 is connected to, venthole 115 and air communication, and water inlet pipe 112 and outlet pipe 113 are injected pump 117 with seawater and be connected to,
Water inlet pipe 112 and outlet pipe 113 are also connected to seawater transfer pipeline respectively.The present invention is placed in seawater by steam extraction pumping installations 11
On seawater transfer pipeline between delivery pump 2 and the first seawater preheating device 4；Steam extraction pumping installations 11 includes that steam extraction pumps shell
111, steam extraction, which pumps, is equipped with steam extraction pump 116 and seawater injection pump 117 in shell 111, steam extraction pumps shell 111 and is equipped with air intake
114, venthole 115, water inlet pipe 112 and outlet pipe 113, air intake 114 and venthole 115 pass through pipeline and steam extraction pump respectively
116 connections, air intake 114 are also connected to fresh water output port 42, venthole 115 and air communication, water inlet pipe 112 and outlet pipe
113, which inject pump 117 with seawater, is connected to, the design that water inlet pipe 112 and outlet pipe 113 are also connected to seawater transfer pipeline respectively,
It can accelerate flowing velocity of the seawater in seawater transfer pipeline, improve the desalination rate of seawater, meanwhile, steam extraction pump 116 may be used also
It is discharged in sky vapour with the uncooled water vapour that fresh water output port 42 is discharged, the pressure of internal system pipeline can be reduced
Power, guarantee equipment using safe, while sky vapour being avoided to enter infiltration evaporation desalination membrane group device 1 from fresh water output port 42
It is interior, penetration of sea water vaporization is influenced, guarantees the internal differential pressure of infiltration evaporation desalination membrane group device 1.
As shown in Figure 1, Figure 3, the first seawater preheating device 4 includes the first preheating shell 43, the first preheating in the present embodiment
The first preheating chamber 44 is equipped in shell 43, it is pre- to be equipped with the first seawater being connected to seawater transfer pipeline in the first preheating chamber 44
Heated conveying pipe 45, steam input port 41 and fresh water output port 42 are connected to the first preheating chamber 44.The present invention passes through the
One seawater preheating device 4 includes the first preheating shell 43, and the first preheating chamber 44, the first preheating are equipped in the first preheating shell 43
The first seawater preheating delivery pipe 45 being connected to seawater transfer pipeline, steam input port 41 and fresh water output are equipped in chamber 44
The design that port 42 is connected to the first preheating chamber 44 can introduce steam into the first preheating chamber 44, to the first sea
Water preheating delivery pipe 45 is heated, while the first seawater preheating delivery pipe 45 condenses steam, the two phase separation, is realized
To heating of seawater, the condensation to steam simultaneously, obtains fresh water, the first seawater preheating device 4 can be sufficiently by the warm of the steam of vaporization
Amount is absorbed, and the waste of thermal energy is avoided.
As Figure 1 and Figure 4, the second seawater preheating device 5 includes the second preheating shell 53, the second preheating in the present embodiment
The second preheating chamber 54 is equipped in shell 53, it is pre- to be equipped with the second seawater being connected to seawater transfer pipeline in the second preheating chamber 54
Heated conveying pipe 55, dense salt waste water input port 51 and dense salt discharge of wastewater port 52 are connected to the second preheating chamber 54.This hair
It is bright that second preheating shell 53 is included by the second seawater preheating device 5, it is equipped with the second preheating chamber 54 in the second preheating shell 53,
The second seawater preheating delivery pipe 55 being connected to seawater transfer pipeline, dense salt waste water input port are equipped in second preheating chamber 54
51 and the design that is connected to the second preheating chamber 54 of dense salt discharge of wastewater port 52, the dense salt waste water that sea water desalination is generated produce
Raw heat is absorbed, and it is right in the second preheating chamber 54 that the dense salt waste water being discharged from dense salt discharge of wastewater port 52 is introduced into
Seawater in second seawater preheating delivery pipe 55 is preheated, and realization makes full use of waste heat, avoids the waste of thermal energy.
As shown in Figure 1, the heating of seawater device 6 in the present embodiment includes heating of seawater shell 61, heating of seawater shell 63
It is interior to be equipped with heating chamber 64, the heating of seawater delivery pipe 65 being connected to seawater transfer pipeline, remaining hot water are equipped in heating chamber 64
Input port 61 and remaining hot water output port 62 are connected to heating chamber 64.The present invention includes sea by heating of seawater device 6
Water heated shell 61, heating of seawater shell 63 is interior to be equipped with heating chamber 64, is equipped in heating chamber 64 and seawater transfer pipeline connects
Logical heating of seawater delivery pipe 65, remaining hot water input port 61 and remaining hot water output port 62 are set with what heating chamber 64 was connected to
Cooling water in engine cool water vat is introduced into heating chamber 64, adds to heating of seawater delivery pipe 65 by meter, realization
Heat, the waste heat for making full use of engine to generate heat seawater, reach vapourizing temperature, save the energy, avoid engine thermal
The waste of energy.
As shown in Fig. 1, Fig. 5 and Fig. 6, infiltration evaporation desalination membrane group device 1 includes vacuum separation shell in the present embodiment
104, it is equipped with seawater vaporization chamber 105 in vacuum separation shell 104, is equipped with and multiple is set in parallel connection in seawater vaporization chamber 105
The sea water filter membrane component 106 set；Sea water desalination entrance 107 and hot strong brine row are equipped on each sea water filter membrane component 106
Outlet 108；Each sea water desalination entrance 107 is connected to seawater input port 101, and each hot strong brine outlet 108 and strong brine are defeated
Exit port 103 is connected to；Sea water filter membrane component 106 includes plate body 1061, and plate body 1061 is equipped with infiltration vapour and portals 1062, plate body
It is covered with filter membrane 1063 on 1061, and plate body 1061 is completely covered filter membrane 1063, is additionally provided on plate body 1061 for pressing
The shell 1064 of filter membrane 1063 processed, shell 1064 is interior to be equipped with sea water filter runner 1067, and shell 1064 is equipped with sea water filter
Import 107 and sea water filter outlet 108, sea water filter import 107 is connected to seawater input port 101, sea water filter outlet 108
It is connected to strong brine output port 103.The present invention is by infiltration evaporation desalination membrane group device 1, by pressure difference using realization to sea
Water vapor separation, sea water desalination is high-efficient, output fresh water quality is good, lower to thermal requirement, can reduce environmental pollution, and be
The scarcity of fresh water resources such as offshore vessels, island, islands and reefs ship or region provide sufficient drinking water and domestic water.
As shown in Figure 1, the dense salt discharge of wastewater port 52 in the present embodiment is connected to by pipeline with ocean 17；Dense salt waste water
Delivery pipe 8 is connected to ocean 17.The present invention is connected to by pipeline with ocean 17 by dense salt discharge of wastewater port 52；Dense salt waste water
Strong brine can be directly discharged in ocean by the design that delivery pipe 8 is connected to ocean 17.
As shown in Figure 1, the pump intake of the seawater pumping installations 2 in the present embodiment is connected to source of seawater, seawater pumping installations 2
The pipeline that is connected to source of seawater of pump intake be equipped with filter 13, be equipped with filter screen in filter 13, the aperture of filter screen is
5-10μm.The present invention, which passes through, is equipped with filter 13 between seawater pumping installations 2 and source of seawater 12, be equipped with filter screen in filter 13,
The design that the aperture of filter screen is 5-10 μm, for preventing the components such as the blocking such as seaweed, marine pollutant pipeline, valve；Due to
Infiltration evaporation desalination processes are not needed such as hyperfiltration by pressure-driven, but by 106 two sides water of sea water filter membrane component
Saturated vapour pressure difference as driving force.Therefore, not stringent to the requirement of stoste, it is only necessary to which that primary filtration is fallen in seawater
Suspended material, which can enter, carries out desalting processing in infiltration evaporation desalination membrane group device 1.
As shown in Figure 1, being also communicated on the pipeline that the fresh water output port 42 in the present embodiment is connected to air intake 114 true
Slack tank 14.The design of vacuum tank 14 is also communicated on the pipeline that the present invention is connected to by fresh water output port 42 with air intake 114,
The uncooled fresh water steam that fresh water output port 42 can be exported is introduced into the fresh water that collection part condenses in vacuum tank 14.
As shown in Figure 1, fresh water collecting device 3 includes fresh water collecting case 31 in the present embodiment, fresh water collecting case 31 is equipped with
Fresh water entrance 32, fresh water entrance 32 are connected with fresh water collecting pipe 33, and fresh water collecting pipe is equipped with fresh water collecting pump 34.The present invention is logical
Fresh water collecting case 31 is crossed equipped with fresh water entrance 32, fresh water entrance 32 is connected with fresh water collecting pipe 33, and fresh water collecting pipe is equipped with
34 design of fresh water collecting pump, realizes the collection to fresh water.
As shown in Figure 1, the bottom of the vacuum separation shell 104 in the present embodiment is equipped with hot well 15, condensed water
15 bottom of collecting tank is equipped with the collection port 16 of perforation, and collection port 16 is connected to by pipeline with fresh water collecting pipe 33.The present invention passes through
The bottom of vacuum separation shell 104 is equipped with hot well 15, and 15 bottom of hot well is equipped with the collection port 16 of perforation,
Collection port 16 passes through the design that pipeline is connected to fresh water collecting pipe 33, can be by the liquefied fresh water of 104 outer wall of vacuum separation shell
It is collected.
It is equipped with salinometer in pipeline between fresh water collecting case 31 in the present invention and fresh water collecting pump 34, for leading to fresh water
Electric rate detection, in order to the evaluation to production fresh water quality.
The first preheating shell 43, second in the present invention, which preheats, is equipped with heat preservation outside shell 53 and heating of seawater shell 63
Layer preheats the protection of shell 53 and 63 internal heat of heating of seawater shell to the first preheating shell 43, second, avoids internal heat
Scatter and disappear, improve to the absorptivity of waste heat.
Efficiently utilize the infiltration evaporation seawater desalination system desalting process of engine exhaust heat:
Before sea water desalination, steam extraction pumping installations 11 is first passed through to the first seawater preheating device 4 and infiltration evaporation desalination membrane
Group device 1 vacuumizes, so that the chamber in the first seawater preheating device 4 and infiltration evaporation desalination membrane group device 1 becomes vacuum chamber
Room, circulating water of engine are opened, and seawater is introduced into steam extraction pumping installations 11 by seawater pumping installations 2, from steam extraction pump
It send device 11 to be pumped into the first seawater preheating delivery pipe 45, then the second seawater preheating delivery pipe 55 is entered by seawater delivery pipe
It is interior, enter heating of seawater delivery pipe 65 after the outflow of the second seawater preheating delivery pipe 55, defeated from seawater by seawater delivery pipe
Inbound port 101 enters in infiltration evaporation desalination membrane group device 1, and seawater, which enters in sea water filter membrane component 106, to be vaporized, light in seawater
Water vapor enters in the first preheating chamber 44 from steam output end mouth 102, enters fresh water collecting from fresh water output port 42 and fills
Collection is set, fresh water is made；
In fresh water preparation process, fresh water steam enters in the first preheating chamber 44 from 102, can be pre- to the first seawater
Heated conveying pipe carries out first time preheating, without introducing outside heat, realizes the first heating to seawater by waste heat, unboiled
Seawater is discharged from dense salt waste water output port 103, into the second seawater preheating device, to the second seawater preheating delivery pipe 55 into
Row preheating realizes the waste heat to seawater in the second seawater preheating delivery pipe 55 using the heat that strong brine waste water generates, without drawing
Enter other heat sources, entering heating of seawater device, heating of seawater is carried out by engine exhaust heat, this system returns net quantity of heat
It receives and utilizes, so that seawater reaches penetration of sea water vapourizing temperature, and then realize the purpose of penetration of sea water vaporization output fresh water.
Meanwhile the seawater through the preheating of the second seawater preheating device 5 is entering in heating of seawater device 6, to engine cool
Water cools down in endothermic process, and engine coolant temperature will not be made too low, guarantees that engine cool recirculated water is returning to engine
The minimum upper limit value of the interior temperature for guaranteeing engine design, guarantees the full combustion of engine interior fuel, improves engine
Working efficiency.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (10)
1. a kind of infiltration evaporation seawater desalination system for efficiently utilizing engine exhaust heat, it is characterised in that: de- including infiltration evaporation
Salt film group device (1), infiltration evaporation desalination membrane group device (1) are equipped with seawater input port (101), steam output end mouth
(102) and dense salt waste water output port (103)；
Seawater input port (101) is connected to by seawater transfer pipeline with seawater pumping installations (2), steam output end mouth (102)
It is connected to by pipeline with fresh water collecting device (3)；
Seawater transfer pipeline between seawater pumping installations (2) and seawater input port (101) has been sequentially communicated on from left to right
One seawater preheating device (4), the second seawater preheating device (5) and heating of seawater device (6)；
First seawater preheating device (4) is equipped with steam input port (41) and fresh water output port (42)；Steam input port
(41) it is connected to by pipeline with steam output end mouth (102), fresh water output port (42) passes through pipeline and fresh water collecting device (3)
Connection；
Second seawater preheating device (5) is equipped with dense salt waste water input port (51) and dense salt discharge of wastewater port (52), dense salt
Waste water input port (51) is connected to by strong brine transfer pipeline (7) with dense salt waste water output port (103), strong brine delivery pipe
Dense salt wastewater discharge pipe (8) is also connected on road (7), dense salt wastewater discharge pipe (8) is equipped with flow control valve (9)；
Heating of seawater device (6) is equipped with remaining hot water input port (61) and remaining hot water output port (62), remaining hot water input terminal
Mouthful (61) are connected to the cooling water output port (171) of in-engine cooling waster vat, remaining hot water output port (62) with start
The cooling water input port (172) of cooling waster vat in machine is connected to, the cooling water of remaining hot water output port (62) and cooling waster vat
Temperature measuring device (10) are equipped in the pipeline of input port (172) connection；
Fresh water output port (42) is also connected to by pipeline with the air inlet (114) on steam extraction pumping installations (10).
2. the efficient infiltration evaporation seawater desalination system using engine exhaust heat according to claim 1, it is characterised in that:
It further include controller, flow control valve (9) is flow electric controlled regulating valve, and temperature measuring device (10) is temperature sensor, temperature
Measuring device (10) and flow control valve (9) are electrically connected with the controller.
3. the efficient infiltration evaporation seawater desalination system using engine exhaust heat according to claim 2, it is characterised in that:
Steam extraction pumping installations (11) is placed on the seawater transfer pipeline between seawater delivery pump (2) and the first seawater preheating device (4)；Steam extraction
Pumping installations (11) includes steam extraction pumping shell (111), is equipped with steam extraction pump (116) in steam extraction pumping shell (111) and seawater is penetrated
Enter pump (117), steam extraction pumps shell (111) and is equipped with air intake (114), venthole (115), water inlet pipe (112) and outlet pipe
(113), air intake (114) and venthole (115) are connected to by pipeline with steam extraction pump (116) respectively, air intake (114) also with it is light
Water output port (42) connection, venthole (115) and air communication, water inlet pipe (112) and outlet pipe (113) are injected with seawater
(117) connection is pumped, water inlet pipe (112) and outlet pipe (113) are also connected to seawater transfer pipeline respectively；
First seawater preheating device (4) includes the first preheating shell (43), is equipped with the first preheating cavity in the first preheating shell (43)
Room (44), the first preheating chamber (44) is interior to be equipped with the first seawater preheating delivery pipe (45) being connected to seawater transfer pipeline, steam
Input port (41) and fresh water output port (42) are connected to the first preheating chamber (44)；
Second seawater preheating device (5) includes the second preheating shell (53), is equipped with the second preheating cavity in the second preheating shell (53)
Room (54), the second preheating chamber (54) is interior to be equipped with the second seawater preheating delivery pipe (55) being connected to seawater transfer pipeline, dense salt
Waste water input port (51) and dense salt discharge of wastewater port (52) are connected to the second preheating chamber (54)；
Heating of seawater device (6) includes heating of seawater shell (61), is equipped with heating chamber (64) in heating of seawater shell (63), adds
It is equipped with the heating of seawater delivery pipe (65) being connected to seawater transfer pipeline in hot chamber (64), remaining hot water input port (61) and remaining
Output end of hot water mouth (62) is connected to heating chamber (64)；
Infiltration evaporation desalination membrane group device (1) includes vacuum separation shell (104), is equipped with seawater in vacuum separation shell (104)
Vaporization chamber (105) is equipped in seawater vaporization chamber (105) multiple in the sea water filter membrane component (106) being arranged in parallel；Respectively
Sea water desalination entrance (107) and hot strong brine outlet (108) are equipped on sea water filter membrane component (106)；Each sea water desalination
Entrance (107) is connected to seawater input port (101), and each hot strong brine outlet (108) and strong brine output port (103) are even
It is logical.
4. the efficient infiltration evaporation seawater desalination system using engine exhaust heat according to claim 3, it is characterised in that:
Dense salt discharge of wastewater port (52) is connected to by pipeline with ocean；Dense salt wastewater discharge pipe (8) is connected to ocean (17).
5. the efficient infiltration evaporation seawater desalination system using engine exhaust heat according to claim 4, it is characterised in that:
Pump intake on seawater pumping installations (2) is connected to source of seawater (12), pump intake and source of seawater on seawater pumping installations (2)
(12) pipeline being connected to is equipped with filter (13), and filter screen is equipped in filter (13), and the aperture of filter screen is 5-10 μm.
6. the efficient infiltration evaporation seawater desalination system using engine exhaust heat according to claim 5, it is characterised in that:
Vacuum tank (14) are also communicated on the pipeline that fresh water output port (42) is connected to air intake (114).
7. the efficient infiltration evaporation seawater desalination system using engine exhaust heat according to claim 6, it is characterised in that:
Fresh water collecting device (3) includes fresh water collecting case (31), and fresh water collecting case (31) is equipped with fresh water entrance (32), fresh water entrance
(32) it is connected to by fresh water collecting pipe (33) with fresh water output port (42), fresh water collecting pipe (33) is pumped equipped with fresh water collecting
(34)。
8. the efficient infiltration evaporation seawater desalination system using engine exhaust heat according to claim 7, it is characterised in that:
The bottom of vacuum separation shell (104) is equipped with hot well (15), and hot well (15) bottom is equipped with the receipts of perforation
Ji Kou (16), collection port (16) are connected to by pipeline with fresh water collecting pipe (33).
9. the efficient infiltration evaporation seawater desalination system using engine exhaust heat according to claim 8, it is characterised in that:
Salinometer is equipped in pipeline between fresh water collecting case (31) and fresh water collecting pump (34).
10. the efficient infiltration evaporation seawater desalination system using engine exhaust heat according to claim 9, feature exist
In: insulating layer is equipped with outside the first preheating shell (43), the second preheating shell (53) and heating of seawater shell (63).
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| CN201811275055.8A CN109592745A (en) | 2018-10-30 | 2018-10-30 | A kind of efficient infiltration evaporation seawater desalination system using engine exhaust heat |
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Application publication date: 20190409 |