CN102336450A - Seawater distillation desalting device utilizing residual heat of diesel engine and desalting method - Google Patents
Seawater distillation desalting device utilizing residual heat of diesel engine and desalting method Download PDFInfo
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- CN102336450A CN102336450A CN2011102285416A CN201110228541A CN102336450A CN 102336450 A CN102336450 A CN 102336450A CN 2011102285416 A CN2011102285416 A CN 2011102285416A CN 201110228541 A CN201110228541 A CN 201110228541A CN 102336450 A CN102336450 A CN 102336450A
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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
Abstract
The invention discloses a seawater distillation desalting device utilizing residual heat of a diesel engine, which comprises an evaporator and a condenser which are arranged in a shell, wherein the evaporator is connected with a feeding seawater pipe, a hot water inlet pipe, a hot water outlet pipe and a strong seawater discharging pipe, a hot water pump is arranged on the hot water inlet pipe, the hot water pump is connected with a cooling water outlet of a diesel cylinder jacket, and the hot water outlet pipe is connected with a cooling water inlet of a diesel cylinder jacket; negative pressure conditions required for distillation desalting are kept through a water jetting type vacuum pump, seawater is heated and evaporated by the evaporator, generated steam enters the condenser after gas and liquid separation, and the original seawater is condensed into fresh water. The device has the characteristics of high heat transmission efficiency, compact structure, reliable running, high automation degree and the like and is suitable for being used in coordination with a diesel engine on ships, islands, offshore platforms and other places or regions. The device can realize the two functions of cooling the diesel engine and producing fresh water. The comprehensive utilization efficiency of fuels can be increased, and purposes of saving energy and reducing emission can be achieved.
Description
Technical field
The present invention relates to a kind of water treatment desalination techniques, relate in particular to a kind of devices and methods therefor that utilizes diesel residual heat to carry out distillation seawater desalination.
Background technology
In particular locality or occasions such as the coastal isolated island of China, boats and ships yacht, offshore platform, the general relative shortage of the energy and fresh water, often need settle a dispute by the parties concerned themselves in these areas power and water supply.Because envrionment conditions is limit, above-mentioned remote districts are difficult to build the large-scale centralized energy and fresh water feedway, therefore; EPS often relies on various distributed energy converting apparatus such as oil electric engine to provide; It will produce a considerable amount of waste heats in operational process, but because this waste heat supply temperature generally has only 60～90 ℃, therefore; This heat energy directly has been discharged in the environment with the form of used heat as a rule, thereby has caused the no benefit on economy and the environment.Sea water desaltination is an important channel that increases the fresh water supply, but because this technological process will consume a considerable amount of energy, therefore for the just very nervous above-mentioned area of original energy resource supply, realizes that sea water desaltination will further strengthen its energy burden undoubtedly.
In desalination technology, small-sized sea water distiling plant mainly adopts two kinds of reverse osmosis method and distillation method at process aspect.Adopt reverse osmosis method, reverse osmosis desalination device wherein only needs the external world to provide electric power and seawater to move, and on-the-spot complementary conditions are required simply on island and ship, to have obtained application at present.Although reverse osmosis desalination device has plurality of advantages; But still exist the seawater quality requirement high, shortcoming such as maintenance service is loaded down with trivial details, and system stability is low; Especially under particular surroundings and electric power resource situation in short supply, its suitability still exists certain restriction.Adopt distillation method, distillation seawater desalinating device wherein mainly consumes heat energy such as steam or hot water and low amounts of power when operation.For users such as island, boats and ships, offshore platforms, use the oil electric engine generating usually, EPS is not abundant, and oil motor needs cooling heat dissipation usually in the power generation process.This part waste heat grade is lower, directly be discharged in the environment as used heat usually, but the heat energy demand of its total heat and distillation seawater desalination matees basically, can be used as the thermal source of desalination, and disregards cost.In addition, the power consumption of distillation desalination generally is lower than desalination by reverse osmosis, and cost and desalination by reverse osmosis are suitable basically.For the occasion that has used heat to utilize, the water producing cost of distillation desalinating process will be lower than desalination by reverse osmosis usually.Also have, based on the characteristics of distillation desalination self, as strong to seawater quality flexibility, performance is relatively stable, and desalination water quality is good, and long service life is moved the distillation desalting equipment and had certain technical guarantee and advantage under severe environment.In sum, need development research how to make full use of the technology that low grade heat energy that oil motor discharges carries out sea water desaltination at present.
Summary of the invention
To above-mentioned prior art; The present invention provides a kind of distillation seawater desalinating device and desalination method thereof that utilizes based on diesel residual heat; The present invention can recycle the low grade heat energy that oil motor discharged and increase fresh water simultaneously and supply with, and not only can realize the cascade utilization of energy in system, improves the comprehensive utilization ratio of fuel; But also can effectively carry out reasonable disposition to resource, alleviate the shortage problem of fuel and water resources.This device has characteristics such as heat transfer efficiency height, compact construction, reliable, level of automation height; Suit in occasion or area and the supporting uses of oil motor such as boats and ships, island, offshore platforms; Can realize the double effects of oil motor cooling and fresh water production; Both the fuel comprehensive utilization ratio can be improved, the purpose of energy-saving and emission-reduction can be reached again.Especially have remarkable economical, society and environmental benefit for island, boats and ships and offshore platform equal energy source and all short relatively particular locality or the occasion of Freshwater resources.
In order to solve the problems of the technologies described above; A kind of technical scheme that is achieved based on the distillation seawater desalinating device of diesel residual heat utilization of the present invention is: comprise being arranged on an intravital vaporizer and condensing surface that said vaporizer is connected with the adapter of feed seawater, hot water inlet adapter, hot water outlet is taken over and the concentrated seawater draining is taken over; Said condensing surface is connected with former sea intake adapter, the adapter of former seawer outlet, the fresh water draining is taken over and take out the non-condensable gas adapter; Said former seawer outlet takes over, saidly take out that non-condensable gas is taken over and said concentrated seawater draining is taken over and all linked to each other with a water-jetting type jet vacuum pump; One end of said cylindrical shell is fixed with end plate, and the other end of said cylindrical shell is fixed with end socket, is provided with a middle transverse wall and a combination filtration in the said cylindrical shell; Said combination filtration constitutes by catching foam net and baffle plate, and said middle transverse wall and the said foam net of catching are divided into two cavitys up and down with said cylindrical shell; Said condensing surface is arranged in the cavity of top, and said vaporizer is arranged in the cavity of below; Said vaporizer also is connected with the hot water inlet adapter and hot water outlet is taken over, and said hot water inlet is taken over and is provided with a hot water pump, and said hot water pump links to each other with the diesel cylinder sleeve cooling water outlet, and said hot water outlet is taken over and linked to each other with the diesel cylinder sleeve cooling water inlet; Said hot water inlet adapter and said hot water outlet are connected with the hot water bypass between taking over, and this hot water bypass is provided with a bypass valve; Said fresh water draining is taken over and is gone up, is provided with fresh water pump, salinometer sensor, SV, rate of flow meter and water sampling valve successively from said condensing surface to fresh water water tank; Said fresh water pump and said water-jetting type vacuum pump all are positioned at the bottom of said cylindrical shell.
The present invention is based on the distillation seawater desalinating device that diesel residual heat utilizes, wherein, said feed seawater is taken over and is provided with Scale inhibitors grug feeding jar and dosing valve, and said Scale inhibitors grug feeding jar is positioned at the bottom of cylindrical shell.Said former sea intake is taken over to go up from the sea intake place to said condensing surface and is provided with y-type filter, sea intake valve and sea-water pump successively, and said sea-water pump pumps into said condensing surface after former seawater is boosted.Said vaporizer is identical with said structure of condenser; Comprise the heat exchange plate that multi-disc is range upon range of; All accompany a plate packing circle between the adjacent in twos heat exchange plate, range upon range of heat exchange plate one end of said multi-disc contacts with the end plate of cylindrical shell, and an end of the heat exchange plate that said multi-disc is range upon range of is provided with a cover plate; Be provided with a plurality of heat exchange plate erection bolts between said cover plate and the said end plate, the said plate erection bolt heat exchange plate that multi-disc is range upon range of is fixed.The profile of said heat exchange plate is a rectangle, and the two sides of said heat exchange plate is equipped with the herring-bone runner, and the outer edge of said heat exchange plate is provided with the mounting groove of plate packing circle; Said heat exchange plate material adopts titanium or stainless steel, and the material of said plate packing circle is selected from any in terpolymer EP rubber, nitrile rubber and the silica gel.Said baffle plate and said material of catching the foam net all are selected from any in stainless steel, the plastic and glass steel.In the said vaporizer, the upper end that is positioned at the plate packing circle that seawater to make heat exchange one side installs is provided with and is used for concentrated seawater and the effusive opening of steam.In the said condensing surface, the upper end that is positioned at the plate packing circle that steam heat-exchanging one side installs is provided with and is used for the opening that steam gets into.
A kind of distillation seawater desalination method that utilizes based on diesel residual heat of the present invention is when oil motor cools, to utilize its waste heat to carry out sea water desaltination, and its method is:
Open the hot water inlet valve; The recirculated cooling water that hot water pump drives in the diesel cylinder sleeve gets into said vaporizer heating and evaporation seawater; Said vaporizer adopts surface boiling formula climbing-film evaporation technology; Make the feed seawater upwards flow and receive thermal evaporation,, reduce because of concentrated seawater and discharge the calorific loss that is caused to reduce the feed seawater with respect to the feedwater ratio of producing fresh water along heat exchange plate; Vapor-liquid separation adopts baffle plate and catches the foam net and make up filtering form; The steam that vaporizer produces is removed through the part sea water drops that the inertial separation effect is carried secretly in steam behind the baffle plate baffling; And then the tiny sea water drops of in catching the further filtering steam of foam net, being carried secretly, the steam that is produced gets into condensing surface after catching the foam net;
Meanwhile, open the sea intake valve, former seawater is pumped to condensing surface after boosting through said sea-water pump, and former seawater has absorbed the latent heat of steam when vapor condensation is fresh water, make former seawater obtain preheating, and its temperature raises;
Fresh water enters fresh-water tank through fresh water pump, and salinometer sensor is monitored the fresh water of being produced in real time, when detecting limneticum and exceed standard; Salinometer sensor sends guard signal to system; Simultaneously command control system is opened SV the fresh water that salinity exceeds standard is directly discharged, in order to avoid destroy the fresh water water quality in the fresh-water tank, treat limneticum recover normal after; SV cuts out automatically, and fresh water flows into fresh-water tank again;
In above-mentioned whole still-process; Former seawer outlet place at condensing surface; Utilize the overbottom pressure of former seawater that the power seawater of the former seawater of part as the water-jetting type jet vacuum pump come in the induction apparatus because the formed noncondensable gas of evaporation of seawater is desalinated required vacuum tightness with distillation in the holding device.
Compared with prior art, the invention has the beneficial effects as follows:
The present invention utilizes the recirculated cooling water in the diesel cylinder sleeve to be thermal source; Be implemented in to oil motor cooling refrigerative through distillation seawater desalination technology and produce fresh water simultaneously, solved specific occasion such as boats and ships, island, offshore platform or geographic energy-saving and emission-reduction and fresh water and supplied with problem.Apparatus of the present invention can realize utilizing the recirculated cooling water heating evaporation of seawater in the diesel cylinder sleeve; Both can cool effectively to oil motor; Can make full use of its waste heat again and carry out sea water desaltination, improve the total energy approach efficient of system, increase water supply for the user simultaneously.
The present invention is through the optimization design to relevant component layouts in structure and the device; As with among the integrated cavity up and down that is installed on cylindrical shell of condensing surface and vaporizer; And install in the end socket middle part and to catch the foam net, fresh water pump and water-jetting type jet vacuum pump etc. is installed in the bottom of cylindrical shell, the one-piece construction that makes device is compactness more; Volume is littler, is adapted to the limited installation occasions in space such as boats and ships, offshore platform.
What vapor-liquid separation parts among the present invention adopted is the combination filtration, the steam that is produced through baffle plate with catch the combination of foam net and filter, the sea water drops of fully being carried secretly in the filtering steam has guaranteed the water quality of fresh water.
In the desalination process of the present invention, former seawater has absorbed the latent heat of steam through condensing surface, when vapor condensation is fresh water, makes former seawater obtain preheating, thereby has improved the steam output of feed seawater in vaporizer; Vaporizer among the present invention and condensing surface all adopt the titanium plate-type heat exchanger, not only can improve the heat transfer efficiency of interchanger unit volume, and have improved anti-corrosion capability, have prolonged work-ing life.
In the desalination process of the present invention; Former seawater is after boosting through sea-water pump; The former seawater of part comes in the injection housing because the formed noncondensable gas of evaporation of seawater as the power seawater of water-jetting type jet vacuum pump; Guaranteed the required condition of negative pressure of distillation desalination, fresh water production can be moved by continous-stable.
Vaporizer among the present invention adopts surface boiling formula climbing-film evaporation technology; Make the feed seawater upwards flow and receive thermal evaporation along heat exchange plate; Not only can reduce the feed seawater with respect to the feedwater ratio of producing fresh water, discharge the calorific loss that is caused, also can effectively prevent the generation of heat exchange plate " dried wall " phenomenon simultaneously thereby reduced because of concentrated seawater; Reduced the tendency of fouling of evaporator, guaranteed economy and safety UTILIZATION OF VESIDUAL HEAT IN.
Description of drawings
Accompanying drawing is the structural representation sketch that the present invention is based on the distillation seawater desalinating device of diesel residual heat utilization.
Among the figure:
Embodiment
Below in conjunction with embodiment the present invention is done to describe in further detail.
Shown in accompanying drawing; A kind of distillation seawater desalinating device that utilizes based on diesel residual heat of the present invention; Comprise the vaporizer 2 and condensing surface 14 that are arranged in the cylindrical shell 3, said vaporizer 2 is connected with feed seawater adapter 26, hot water inlet adapter 25, hot water outlet adapter 24 and concentrated seawater draining and takes over 43; Said condensing surface 14 is connected with that former sea intake takes over 21, former seawer outlet takes over 20, the fresh water draining takes over 23 and take out non-condensable gas and take over 22; Said former seawer outlet takes over, saidly take out that non-condensable gas is taken over and said concentrated seawater draining is taken over and all linked to each other with a water-jetting type jet vacuum pump 1; One end of said cylindrical shell 3 is fixed with end plate 19, and the other end of said cylindrical shell 3 is fixed with end socket 10, is provided with a middle transverse wall 13 and a combination filtration in the said cylindrical shell 3; Said combination filtration constitutes with baffle plate 11 by catching foam net 12, and said baffle plate 11 and said material of catching foam net 12 all are selected from any in stainless steel, the plastic and glass steel.Transverse wall 13 is divided into two cavitys up and down with the said foam net 12 of catching with said cylindrical shell 3 in the middle of said; Said condensing surface 14 is arranged in the cavity of top, and said vaporizer 2 is arranged in the cavity of below; Said vaporizer 2 also is connected with hot water inlet adapter 25 and takes over 24 with hot water outlet; Said hot water inlet is taken over 25 and is provided with a hot water pump 33; Said hot water pump 33 links to each other with the diesel cylinder sleeve cooling water outlet, and said hot water outlet is taken over 24 and linked to each other with the diesel cylinder sleeve cooling water inlet; Said hot water inlet adapter 25 and said hot water outlet are connected with the hot water bypass between taking over 24; This hot water bypass is provided with a hot water bypass valve 31, controls the service discharge that gets in vaporizers 2 according to the temperature of diesel cycle water coolant through regulating this by-path hot water valve 31; Said fresh water draining is taken on 23, is provided with fresh water pump 27, salinometer sensor 40, SV 39, rate of flow meter 38 and water sampling valve 35 successively from said condensing surface 14 to fresh water water tank 34; Said fresh water pump 27 and said water-jetting type jet vacuum pump 1 all are positioned at the bottom of said cylindrical shell 3.Said feed seawater is taken over 26 and is provided with Scale inhibitors grug feeding jar 36 and dosing valve 41, and said Scale inhibitors grug feeding jar 36 is positioned at the bottom of cylindrical shell 3.Said former sea intake is taken on 21 from the sea intake place to said condensing surface 14 and is provided with y-type filter 28, sea intake valve 29 and sea-water pump 30 successively, and said sea-water pump 30 pumps into said condensing surface 14 after former seawater is boosted.
Said vaporizer 2 among the present invention is identical with said structure of condenser; Comprise the range upon range of heat exchange plate of multi-disc 8; All accompany a plate packing circle 9 between the adjacent in twos heat exchange plate 8, range upon range of heat exchange plate 8 one ends of said multi-disc contact with the end plate 19 of cylindrical shell 3, and an end of the heat exchange plate 8 that said multi-disc is range upon range of is provided with a cover plate 7; Be provided with a plurality of plate erection bolts 6 between said cover plate 7 and the said end plate 19, said plate erection bolt 6 heat exchange plate 8 that multi-disc is range upon range of is fixed.In the said vaporizer 2, the upper end that is positioned at the plate packing circle 9 that seawater to make heat exchange one side installs is provided with and is used for concentrated seawater and the effusive opening of steam.In the said condensing surface 14, the upper end that is positioned at the plate packing circle 9 that steam heat-exchanging one side installs is provided with and is used for the opening that steam gets into.The profile of said heat exchange plate 8 is a rectangle, and the two sides of said heat exchange plate 8 is equipped with the herring-bone runner, and the outer edge of said heat exchange plate 8 is provided with the mounting groove of plate packing circle 9; The material of said heat exchange plate 8 adopts titanium or stainless steel, and the material of said plate packing circle 9 is selected from any in terpolymer EP rubber, nitrile rubber and the silica gel.
Utilize the above-mentioned distillation seawater desalinating device that utilizes based on diesel residual heat, the method for when oil motor cools, utilizing its waste heat to carry out sea water desaltination is:
Open hot water inlet valve 32; The recirculated cooling water that hot water pump 33 drives in the diesel cylinder sleeve gets into said vaporizer 2 heating and evaporation seawater; Said vaporizer 2 adopts surface boiling formula climbing-film evaporation technology; Make the feed seawater upwards flow and receive thermal evaporation,, reduce because of concentrated seawater and discharge the calorific loss that is caused to reduce the feed seawater with respect to the feedwater ratio of producing fresh water along heat exchange plate 8; Vapor-liquid separation adopts baffle plate 11 and catches the filtering form of foam net 12 combinations; The steam that vaporizer 2 produces is removed through the part sea water drops that the inertial separation effect is carried secretly in steam behind baffle plate 11 bafflings; And then the tiny sea water drops of in catching foam net 12 further filtering steam, being carried secretly, the steam that is produced gets into condensing surface 14 after catching foam net 12.Meanwhile, open sea intake valve 29, former seawater is pumped to condensing surface 14 after boosting through said sea-water pump 30, and former seawater has absorbed the latent heat of steam when vapor condensation is fresh water, make former seawater obtain preheating, and its temperature raises.Fresh water enters fresh-water tank 34 through fresh water pump 27, and 40 pairs of fresh water of being produced of salinometer sensor are monitored in real time, when detecting limneticum and exceed standard; Salinometer sensor 40 sends guard signal to system; Simultaneously command control system is opened SV 39 fresh water that salinity exceeds standard is directly discharged, in order to avoid destroy the fresh water water quality in the fresh-water tank 34, treat limneticum recover normal after; SV 39 cuts out automatically, and fresh water flows into fresh-water tank 34 again.As for how realizing that the control among the present invention belongs to common practise in the present technique field, repeats no more at this.
In above-mentioned whole still-process; Former seawer outlet place at condensing surface 14; Utilize the overbottom pressure of former seawater that the power seawater of the former seawater of part as water-jetting type jet vacuum pump 1 come in the induction apparatus because the formed noncondensable gas of evaporation of seawater is desalinated required vacuum tightness with distillation in the holding device.
Embodiment:
A specific embodiment of a kind of distillation seawater desalinating device that utilizes based on diesel residual heat of the present invention and method thereof is following.
With the supporting oil motor output rating of distillation seawater desalinating device be 500kW, the flow of diesel cylinder sleeve recirculated cooling water remains on 30m
3/ h, pressure are 0.2MPa, and temperature out remains on 65～85 ℃, and the temperature of recirculated cooling water reduces by 8～10 ℃ after 2 heat exchange of entering vaporizer.Sea-water pump 30 pumps into into condensing surface 14 with former seawater, and flow is 30m
3/ h, pressure are 0.4MPa, when temperature at 25～30 ℃, the temperature that gets into the former seawater after condensing surface 14 heat exchange raises 7～8 ℃.The heat interchanging area of vaporizer 2 and condensing surface 14 is 7.2m
2From condensing surface 14 exits, the former seawater of part as the feed seawater with flow 5m
3/ h pumps into into vaporizer 2, and all the other former seawater are then as the power seawater of water-jetting type jet vacuum pump 1.The intravital noncondensable gas of water-jetting type jet vacuum pump 1 injection shell keeps housing vacuum tightness between 85～95%.Under this processing parameter, the water production rate of distillation desalting equipment can be at 5～15m
3/ d produces the water saltiness between 2～10PPm.
The housing of a kind of distillation seawater desalinating device that utilizes based on diesel residual heat of the present invention is made up of end plate 19, cylindrical shell 3, shell flange 4, cylindrical shell packing ring 5 and end socket 10.The end plate 19 of housing is circular, and diameter is 1.6m, and wall thickness is 15mm, and material is the 316L stainless steel.Cylindrical shell 3 external diameters are 1.5m, and long is 1m, and wall thickness is 8mm, and material is the 316L stainless steel.Shell flange 4 external diameters are 1.6m, and internal diameter is 1.5m, and thickness is 10mm, and material is the 316L stainless steel.End socket 10 profiles are oval, and major diameter is 1.5m, and minor axis is 0.75m, and wall thickness is 5mm, and material is the 316L stainless steel.Between said end plate 19 and cylindrical shell 3, cylindrical shell 3 and the shell flange 4 all through being welded to connect; Accompany cylindrical shell packing ring 5 between said shell flange 4 and the end socket 10, cylindrical shell packing ring 5 thickness are 6mm, and material can adopt nitrile rubber, silica gel or asbestos.Through cylindrical shell bolt 15 shell flange 4, end socket 10, cylindrical shell packing ring 5 are fastenedly connected; Said end socket 10 middle parts are provided with catches foam net 12, and catching foam net 12 can be that the silk thread braiding of 1mm forms with diameter, and material can be selected plastics, glass reinforced plastic or 316L stainless steel for use, catches 10 of foam net 12 and end sockets and can adopt bolt, iron wire or spot welding to fix; Transverse wall 13 in the middle of said cylindrical shell 3 inside are provided with one, middle transverse wall 13 is a rectangle, is of a size of 1000 * 1490 * 5mm, material is the 316L stainless steel; Transverse wall 13 is provided with condensing surface 14 with being divided into two cavitys up and down in the cylindrical shell 3 in the middle of said in the upper cavity, is provided with vaporizer 2 in the lower chamber; The below of transverse wall 13 is provided with a baffle plate 11 in the middle of said, and baffle plate 11 is a rectangle, is of a size of 1400 * 200 * 1mm, and material is the 316L stainless steel; It is that the non-condensable gas of taking out that the former sea intake of DN80 takes over 21, latus rectum is DN80 former seawer outlet takes over 20, latus rectum is DN80 hot water inlet takes over 25, latus rectum is DN80 hot water outlet takes over 24, latus rectum is DN10 feed seawater takes over 26, latus rectum is DN20 fresh water draining takes over 23, latus rectum is DN10 takes over 22 that said end plate 19 outsides are provided with latus rectum, above-mentioned adapter all with end plate through being welded to connect.
Vaporizer 2 is made up of heat exchange plate 8, plate packing circle 9, cover plate 7 and plate erection bolt 6.Heat exchange plate 8 amounts to 60; Each heat exchange plate 8 laminates successively; Between adjacent plate, accompany plate packing circle 9; Formed thus plate groups one end contacts with end plate 19 through plate packing circle 9, and the other end contacts with cover plate 7 through plate packing circle 9, between end plate 19 and cover plate 7, is connected with plate erection bolt 6 so that whole plate groups is fixed.Heat exchange plate 8 profiles are rectangle, are of a size of 600 * 200 * 0.5mm, and area is 0.12m
2, heat exchange plate 8 two sides are provided with the herring-bone runner, and edge is provided with the mounting groove of plate packing circle 9.Heat exchange plate 8 materials can be selected titanium or stainless steel for use.Plate packing circle 9 materials can be selected terpolymer EP rubber, nitrile rubber or silica gel for use.Cover plate 7 is a rectangle, is of a size of 700 * 300 * 10mm, and material is the 316L stainless steel.Condensing surface 14 is identical with part dimension, material and the installation form of vaporizer 2.The upper end of the seawater to make heat exchange side of heat exchange plate 8 and the plate packing circle 9 that the steam heat-exchanging side of heat exchange plate 8 is installed in condensing surface 14 is equipped with the opening that length is 500mm in vaporizer 2, so that the entering of steam in the outflow of concentrated seawater, steam and the condensing surface 14 in the vaporizer 2.
Cylindrical shell 3 tops are provided with thermometer 16, vacuum meter 17 and vacuum breaker valve 18, and above-mentioned instrument and valve all are connected with cylindrical shell 3 through screw thread, and cylindrical shell 3 bottoms are provided with the concentrated seawater draining and take over 43, and cylindrical shell 3 is connected with support 42 through bolt.Support 42 is equipped with fresh water pump 27, water-jetting type jet vacuum pump 1 and Scale inhibitors grug feeding jar 36 through bolt.Sea-water pump 30 is taken over 21 through pipeline and former sea intake and is connected, and former seawer outlet takes over 20, take out that non-condensable gas takes over 22, concentrated seawater draining adapter 43 and water-jetting type jet vacuum pump 1 pass through pipe connection.Hot water inlet takes over 25, be connected successively through pipeline between hot water pump 33 and the diesel cylinder sleeve cooling water outlet.Through pipe connection, feed seawater adapter 26 is taken over 20 with former seawer outlet and is connected between hot water outlet adapter 24 and the diesel cylinder sleeve entrance of cooling water, and said feed seawater is taken over and is connected with dosing valve 41 and Scale inhibitors grug feeding jar 36 on 26 in turn.The fresh water draining is taken over 23 and is connected with fresh water pump 27, and the fresh water in 40 pairs of fresh water drainings adapters 23 of salinometer sensor is monitored in real time, and qualified fresh water is discharged into to fresh-water tank 34.When said salinometer sensor 40 detects limneticum and exceeds standard; Salinometer sensor 40 sends guard signal to system; The while command control system is opened SV 39 will exceed standard the direct discharge of fresh water in order to avoid destroy the fresh water water quality in the fresh-water tank 34; After treating that limneticum is recovered normally, SV 39 cuts out automatically, and fresh water flows into fresh-water tank 34 again.
Although invention has been described for top combination figure; But the present invention is not limited to above-mentioned embodiment, and above-mentioned embodiment only is schematically, rather than restrictive; Those of ordinary skill in the art is under enlightenment of the present invention; Under the situation that does not break away from aim of the present invention, can also make a lot of distortion, these all belong within the protection of the present invention.
Claims (10)
1. a distillation seawater desalinating device that utilizes based on diesel residual heat comprises the vaporizer (2) and the condensing surface (14) that are arranged in the cylindrical shell (3), and said vaporizer (2) is connected with the feed seawater and takes over (26) and concentrated seawater draining adapter (43); Said condensing surface (14) is connected with former sea intake and takes over (21), former seawer outlet adapter (20), fresh water draining adapter (23) and take out non-condensable gas adapter (22); Said former seawer outlet takes over, saidly take out that non-condensable gas is taken over and said concentrated seawater draining is taken over and all linked to each other with a water-jetting type jet vacuum pump (1);
It is characterized in that:
One end of said cylindrical shell (3) is fixed with end plate (19), and the other end of said cylindrical shell (3) is fixed with end socket (10), is provided with a middle transverse wall (13) and a combination filtration in the said cylindrical shell (3);
Said combination filtration constitutes by catching foam net (12) and baffle plate (11), and said middle transverse wall (13) and the said foam net (12) of catching are divided into two cavitys up and down with said cylindrical shell (3);
Said condensing surface (14) is arranged in the cavity of top, and said vaporizer (2) is arranged in the cavity of below;
Said vaporizer (2) also is connected with hot water inlet and takes over (25) and hot water outlet adapter (24); Said hot water inlet is taken over (25) and is provided with a hot water pump (33); Said hot water pump (33) links to each other with the diesel cylinder sleeve cooling water outlet, and said hot water outlet is taken over (24) and linked to each other with the diesel cylinder sleeve cooling water inlet; Said hot water inlet is taken between (25) and the said hot water outlet adapter (24) and is connected with the hot water bypass, and this hot water bypass is provided with a hot water bypass valve (31);
Said fresh water draining is taken over (23) and is gone up, between said condensing surface (14) to fresh water water tank (34), is provided with successively fresh water pump (27), salinometer sensor (40), SV (39), rate of flow meter (38) and water sampling valve (35);
Said fresh water pump (27) and said water-jetting type jet vacuum pump (1) all are positioned at the bottom of said cylindrical shell (3).
2. the distillation seawater desalinating device that utilizes based on diesel residual heat according to claim 1; It is characterized in that: said feed seawater is taken over (26) and is provided with Scale inhibitors grug feeding jar (36) and dosing valve (41), and said Scale inhibitors grug feeding jar (36) is positioned at the bottom of cylindrical shell (3).
3. the distillation seawater desalinating device that utilizes based on diesel residual heat according to claim 1, it is characterized in that: the top of said cylindrical shell (3) is provided with thermometer (16), vacuum meter (17) and vacuum breaker valve (18).
4. the distillation seawater desalinating device that utilizes based on diesel residual heat according to claim 1; It is characterized in that: said former sea intake is taken over (21) and is gone up from the sea intake place to said condensing surface (14) and be provided with y-type filter (28), sea intake valve (29) and sea-water pump (30) successively, and said sea-water pump (30) pumps into said condensing surface (14) after former seawater is boosted.
5. the distillation seawater desalinating device that utilizes based on diesel residual heat according to claim 1; It is characterized in that: said vaporizer (2) is identical with said structure of condenser; Comprise the range upon range of heat exchange plate of multi-disc (8); All accompany a plate packing circle (9) between the adjacent in twos heat exchange plate (8), range upon range of heat exchange plate (8) one ends of said multi-disc contact with the end plate (19) of cylindrical shell (3), and an end of the heat exchange plate (8) that said multi-disc is range upon range of is provided with a cover plate (7); Be provided with a plurality of heat exchange plate erection bolts (6) between said cover plate (7) and the said end plate (19), said plate erection bolt (6) heat exchange plate (8) that multi-disc is range upon range of is fixed.
6. the distillation seawater desalinating device that utilizes based on diesel residual heat according to claim 5; It is characterized in that: the profile of said heat exchange plate (8) is a rectangle; The two sides of said heat exchange plate (8) is equipped with the herring-bone runner, and the outer edge of said heat exchange plate (8) is provided with the mounting groove of plate packing circle (9); Said heat exchange plate (8) material adopts titanium or stainless steel, and the material of said plate packing circle (9) is selected from any in terpolymer EP rubber, nitrile rubber and the silica gel.
7. the distillation seawater desalinating device that utilizes based on diesel residual heat according to claim 1, it is characterized in that: said baffle plate (11) and said material of catching foam net (12) all are selected from any in stainless steel, the plastic and glass steel.
8. the distillation seawater desalinating device that utilizes based on diesel residual heat according to claim 1; It is characterized in that: in the said vaporizer (2), the upper end that is positioned at the plate packing circle (9) that seawater to make heat exchange one side installs is provided with and is used for concentrated seawater and the effusive opening of steam.
9. the distillation seawater desalinating device that utilizes based on diesel residual heat according to claim 1 is characterized in that: in the said condensing surface (14), the upper end that is positioned at the plate packing circle (9) that steam heat-exchanging one side installs is provided with and is used for the opening that steam gets into.
10. distillation seawater desalination construction method that utilizes based on diesel residual heat, it is characterized in that: the method for utilizing distillation seawater desalinating device as claimed in claim 1 when oil motor cools, to utilize its waste heat to carry out sea water desaltination is:
Open hot water inlet valve (32); The recirculated cooling water that hot water pump (33) drives in the diesel cylinder sleeve gets into said vaporizer (2) heating and evaporation seawater; Said vaporizer (2) adopts surface boiling formula climbing-film evaporation technology; Make the feed seawater upwards flow and receive thermal evaporation,, reduce because of concentrated seawater and discharge the calorific loss that is caused to reduce the feed seawater with respect to the feedwater ratio of producing fresh water along heat exchange plate (8); Vapor-liquid separation adopts baffle plate (11) and catches foam net (12) and make up filtering form; The steam that vaporizer (2) produces is removed through the part sea water drops that the inertial separation effect is carried secretly in steam behind baffle plate (11) baffling; And then the tiny sea water drops of in catching the further filtering steam of foam net (12), being carried secretly, the steam that is produced gets into condensing surface (14) after catching foam net (12);
Meanwhile, open sea intake valve (29), former seawater is pumped to condensing surface (14) after boosting through said sea-water pump (30), and former seawater has absorbed the latent heat of steam when vapor condensation is fresh water, make former seawater obtain preheating, and its temperature raises;
Fresh water enters fresh-water tank (34) through fresh water pump (27), and salinometer sensor (40) is monitored the fresh water of being produced in real time, when detecting limneticum and exceed standard; Salinometer sensor (40) sends guard signal to system; Simultaneously command control system is opened SV (39) fresh water that salinity exceeds standard is directly discharged, in order to avoid destroy the fresh water water quality in the fresh-water tank (34), treat limneticum recover normal after; SV (39) cuts out automatically, and fresh water flows into fresh-water tank (34) again; In above-mentioned whole still-process; Former seawer outlet place at condensing surface (14); Utilize the overbottom pressure of former seawater that the power seawater of the former seawater of part as water-jetting type jet vacuum pump (1) come in the induction apparatus because the formed noncondensable gas of evaporation of seawater is desalinated required vacuum tightness with distillation in the holding device.
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| CN2011102285416A CN102336450A (en) | 2011-08-10 | 2011-08-10 | Seawater distillation desalting device utilizing residual heat of diesel engine and desalting method |
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| CN2011102285416A CN102336450A (en) | 2011-08-10 | 2011-08-10 | Seawater distillation desalting device utilizing residual heat of diesel engine and desalting method |
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| CN102336450A true CN102336450A (en) | 2012-02-01 |
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| CN2011102285416A Pending CN102336450A (en) | 2011-08-10 | 2011-08-10 | Seawater distillation desalting device utilizing residual heat of diesel engine and desalting method |
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| CN102583608A (en) * | 2012-02-16 | 2012-07-18 | 西安交通大学 | Ejection type solar seawater desalination device |
| CN102659194A (en) * | 2012-04-01 | 2012-09-12 | 傅利江 | Distillation-type seawater desalinization device |
| CN103397954A (en) * | 2013-07-29 | 2013-11-20 | 广州中国科学院先进技术研究所 | Diesel engine waste heat utilization control system |
| CN103397955A (en) * | 2013-07-29 | 2013-11-20 | 广州中国科学院先进技术研究所 | Diesel engine waste heat utilization economizer |
| CN103739026A (en) * | 2013-12-30 | 2014-04-23 | 众和海水淡化工程有限公司 | Small seawater desalination device employing hot water as heat source |
| CN104030378A (en) * | 2013-03-08 | 2014-09-10 | 笹仓机械工程有限公司 | Water Making Device And Water Making Method |
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| CN104649353A (en) * | 2015-02-02 | 2015-05-27 | 中国海洋石油总公司 | Vacuum-distillation seawater desalinating device and seawater desalinating method thereof |
| CN105236660A (en) * | 2015-11-12 | 2016-01-13 | 国家海洋局天津海水淡化与综合利用研究所 | High-temperature corrosion-resisting distilling seawater desalination system and method based on smoke waste heat utilization |
| CN105858768A (en) * | 2016-03-29 | 2016-08-17 | 国家海洋局天津海水淡化与综合利用研究所 | Two-effect plate type distillation and desalination device |
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| CN110145407A (en) * | 2019-05-31 | 2019-08-20 | 广东海洋大学 | Device based on marine diesel engine cogeneration and sea water desalination |
| CN110407269A (en) * | 2019-07-21 | 2019-11-05 | 自然资源部天津海水淡化与综合利用研究所 | A kind of distillation desalting plant using heat exchange plate corner apertures blanking |
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|---|---|---|---|---|
| CN102583608B (en) * | 2012-02-16 | 2014-07-02 | 西安交通大学 | Ejection type solar seawater desalination device |
| CN102583608A (en) * | 2012-02-16 | 2012-07-18 | 西安交通大学 | Ejection type solar seawater desalination device |
| CN102659194A (en) * | 2012-04-01 | 2012-09-12 | 傅利江 | Distillation-type seawater desalinization device |
| CN104030378A (en) * | 2013-03-08 | 2014-09-10 | 笹仓机械工程有限公司 | Water Making Device And Water Making Method |
| CN103397954B (en) * | 2013-07-29 | 2016-01-06 | 广州中国科学院先进技术研究所 | The control system that a kind of diesel residual heat utilizes |
| CN103397955B (en) * | 2013-07-29 | 2015-10-14 | 广州中国科学院先进技术研究所 | A kind of diesel engine waste heat utilization economizer |
| CN103397955A (en) * | 2013-07-29 | 2013-11-20 | 广州中国科学院先进技术研究所 | Diesel engine waste heat utilization economizer |
| CN103397954A (en) * | 2013-07-29 | 2013-11-20 | 广州中国科学院先进技术研究所 | Diesel engine waste heat utilization control system |
| CN103739026A (en) * | 2013-12-30 | 2014-04-23 | 众和海水淡化工程有限公司 | Small seawater desalination device employing hot water as heat source |
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| CN105236660A (en) * | 2015-11-12 | 2016-01-13 | 国家海洋局天津海水淡化与综合利用研究所 | High-temperature corrosion-resisting distilling seawater desalination system and method based on smoke waste heat utilization |
| CN105236660B (en) * | 2015-11-12 | 2017-07-04 | 国家海洋局天津海水淡化与综合利用研究所 | The high temperature corrosion-resisting distillation seawater desalination system and method utilized based on fume afterheat |
| CN105858768B (en) * | 2016-03-29 | 2018-05-25 | 国家海洋局天津海水淡化与综合利用研究所 | The two board-like distillation desalting plant of effect of one kind |
| CN105858768A (en) * | 2016-03-29 | 2016-08-17 | 国家海洋局天津海水淡化与综合利用研究所 | Two-effect plate type distillation and desalination device |
| CN106871473A (en) * | 2017-04-09 | 2017-06-20 | 上海海洋大学 | A kind of single machine compression with double stage refrigeration system with waste-heat recovery device |
| CN106871473B (en) * | 2017-04-09 | 2023-01-13 | 上海海洋大学 | Single-machine two-stage compression refrigeration system with waste heat recovery device |
| CN110145407A (en) * | 2019-05-31 | 2019-08-20 | 广东海洋大学 | Device based on marine diesel engine cogeneration and sea water desalination |
| CN110145407B (en) * | 2019-05-31 | 2021-10-26 | 广东海洋大学 | Device based on ship diesel engine waste heat power generation and sea water desalination |
| CN110407269A (en) * | 2019-07-21 | 2019-11-05 | 自然资源部天津海水淡化与综合利用研究所 | A kind of distillation desalting plant using heat exchange plate corner apertures blanking |
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| CN112607806A (en) * | 2020-11-24 | 2021-04-06 | 武汉大学 | Novel water and electricity cogeneration device utilizing low-grade waste heat |
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Application publication date: 20120201 |