CN203922782U - Multiple-effect vacuum boiling type sea water desalinating plant - Google Patents
Multiple-effect vacuum boiling type sea water desalinating plant Download PDFInfo
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- CN203922782U CN203922782U CN201420302901.1U CN201420302901U CN203922782U CN 203922782 U CN203922782 U CN 203922782U CN 201420302901 U CN201420302901 U CN 201420302901U CN 203922782 U CN203922782 U CN 203922782U
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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
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- Y02A20/124—Water desalination
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Abstract
The utility model multiple-effect vacuum boiling type sea water desalinating plant by vacuum tank, valve, help the device that boils, vacuum pump, condenser, heat exchange heat abstractor, heat conducting and heat radiating device, heat power supply device, fresh water pipe, condensation fresh water pipe, water shoot, airway to form.Vacuum tank inside is divided into fresh water storehouse, vacuum condensation evaporating chamber, heating under vacuum evaporating chamber, vacuum pre-heating cabin; Valve is successively inputted seawater, is discharged in vacuum tank; Keep the different pressure of vacuum tightness in storehouse; In vacuum tank, heat conduction and heat radiation rate of heating is fast, and steam-to-vacuum condensation is rapid, and the vacuum tightness vaporization boiling point high, water in vacuum tank is low, helps the device that boils can continually provide the gas of nucleate points to prevent bumping, allows boiling continue and stablizes; It adopts the evaporating chamber of staged different pressures vacuum tightness to have the corresponding effect water vapor temperature of successively decreasing, and makes the heat energy of steam obtain the recycling of multistage multiple-effect, greatly reduces the tooling cost of sea water desaltination.
Description
Technical field
It is a kind of sea water desalinating plant that the utility model relates to, specifically a kind of multiple-effect vacuum boiling type sea water desalinating plant.
Background technology
Existing method for desalting seawater mainly contains distillation method and reverse osmosis method, and distillation sea water desalting technology is to drop into the earliest the desalination techniques of industrial applications, comprises multi-stage flash evaporation technology and low-temperature distillation technology.Low temperature distillation sea water desalination technology is exactly to make to keep certain vacuum tightness in evaporator room, and pressure is very little, and the indoor seawater boiling type vaporization temperature of vacuum-evaporation is low, and heating of seawater, water becomes steam, and steam is met cold, condenses into again fresh water; Though low-temperature boiling formula distillation seawater desalination technology is ripe, reliable, it is low that subject matter is that device unit is made outlet capacity, and unit power consumption is large, heat transfer efficiency is poor, heat energy rate of utilization is low, and the fresh water saltiness of boiling type distillation seawater desalination is higher, and the production cost of fresh water is high.
Summary of the invention
The purpose of this utility model is to overcome the deficiency that existing vacuum drying technology exists, and provides a kind of heat conduction, heat exchange, radiating efficiency high, and heat energy can be repeatedly used, and produces the low multiple-effect vacuum boiling type sea water desalinating plant of cost of fresh water.
The utility model multiple-effect vacuum boiling type sea water desalinating plant is achieved through the following technical solutions, multi-stage vacuum boiling type sea water desalinating plant by vacuum tank, valve, help the device that boils, vacuum pump, condenser, heat exchange heat abstractor, heat conducting and heat radiating device, heat power supply device, fresh water pipe, condensation fresh water pipe, water shoot, airway to form.
It is the metal sheet of 3-25mm that the tank body of described vacuum tank is made material; 1, the shape of cross section of vacuum tank is round-shaped, or square; 2, the lagging material that install the tank body of vacuum tank outside plays effect heat insulation, insulation;
Described vacuum tank inside is made up of heating under vacuum evaporating chamber, vacuum pre-heating cabin, vacuum condensation evaporating chamber, fresh water storehouse;
1, vacuum tank inside successively from bottom to top, is spaced apart vacuum tank internal space with dividing plate fresh water storehouse, vacuum condensation evaporating chamber, heating under vacuum evaporating chamber, the vacuum pre-heating cabin of different size, volume; Dividing plate is as a whole with being fixedly connected with of vacuum tank tank body, and dividing plate is the metal sheet of material 3-10mm.
2, vacuum pre-heating cabin in vacuum tank above first location; Fresh water storehouse in vacuum tank below first location; Vacuum condensation evaporating chamber is on fresh water storehouse, and heating under vacuum evaporating chamber is between vacuum condensation evaporating chamber, vacuum pre-heating cabin.
3, each storehouse is an independently bin, and the internal water in storehouse and storehouse is passed in and out by valve control discharge; Steam, gas connect work by inlet mouth, the air outlet of heat exchange heat abstractor.
Described valve is float valve according to the requirement of design, or discharge valves, or operated pneumatic valve.
4, the heat conducting and heat radiating device of installing in the storehouse of heating under vacuum evaporating chamber is vacuum heat-conduction heat abstractor, or hot tube heat exchanger, or tubular heat exchanger.
5, the heat exchange heat abstractor of installing in the storehouse of vacuum condensation evaporating chamber and vacuum pre-heating cabin is vacuum heat exchange heat abstractor, or hot tube heat exchanger, or tubular heat exchanger.
Described vacuum heat-conduction heat abstractor is the patent (patent No. 2013206200055,2013104665705) of my application; The heat conduction import of vacuum heat-conduction heat abstractor is connecting heat pipe, the heat energy of heat pipe makes heat-conducting medium Quick-gasifying by tube wall and the heat conduction support of valve tube, gas after gasification outwards dispels the heat and condensation by body, heat conduction support and radiating fin, condensed heat-conducting medium flows to the lower end heat gasification again of valve tube, completes the heat conduction circulation in valve tube; The heat conduction and heat radiation area change of vacuum heat-conduction heat abstractor 8-30 times, further increase heat conduction, radiating rate.
Described vacuum heat exchange heat abstractor is the patent (patent No. 2013206878449,2013105361745) of my application; The heat conduction import of vacuum heat exchange heat abstractor by heat pipe heat, cooling, heat energy enters heat conduction heating, cooling in vacuum pre-heating cabin by heat pipe, heating, heat radiation after again reheat, dispel the heat through heat pipe by catheter outlet; That goes round and begins again carries out heat exchange, heat radiation, heating, defeated heat; In the middle of heat pipe, hot recycle pump is installed, can accelerates heat energy heat-transfer rate, thermal conversion efficiency further promotes, area of dissipation has increased by 8-30 times, has expanded cooling, the heat conduction rate of heating of heat energy, and heat transfer total amount is improved, waste heat is utilized effectively, energy-conserving and environment-protective;
The described device that boils that helps is that it is made up of gas storehouse, air jet system, tracheae and valve my patent (number of patent application 2014101949714,2014101948904) of application; Air jet system is made up of jet air-casing, jet valve and steel ball, and jet valve is fixed on gas storehouse; Tracheae is fixed on gas storehouse, and valve is installed above tracheae, and the uninterrupted of gas in valve control; Gas enters gas storehouse by valve through tracheae, and in the time that the atmospheric pressure in jet valve is greater than the gravity of steel ball, gas holds up steel ball, and the gas in gas storehouse sheds by the pore on air jet system; Vacuum sea water desaltination helps the device that boils can continually provide the gas of nucleate points to prevent bumping, allows boiling continue and stablizes; The in the situation that of formed objects distillation space, seawater vaporization rate has increased by 1.2-5 times, and the fresh water saltiness of producing also reduces; The seawater vaporization boiling point lowering of condition of high vacuum degree, can save heating energy source expense.
Described vacuum pre-heating cabin is made up of heat exchange heat abstractor, condensate drainage pipe, valve, water shoot, dividing plate; Vacuum pre-heating cabin is in the top of vacuum tank, and upper end is installed with valve, and valve plays the flow that enters vacuum tank of controlling seawater.The dividing plate of lower end is being fixedly connected with vacuum condensation evaporating chamber, and valve is installed on dividing plate, and water shoot is installed on valve; Water shoot can directly be discharged to water below storehouse, avoids contacting of water and steam; Valve plays the flow that enters vacuum condensation evaporating chamber of controlling seawater;
The heat exchange heat abstractor that install vacuum pre-heating cabin the inside is vacuum heat exchange heat abstractor, or hot tube heat exchanger, or tubular heat exchanger.
Vacuum pre-heating cabin the inside is provided with vacuum heat exchange heat abstractor; 1, the inlet mouth of vacuum heat exchange heat abstractor is fixed on dividing plate, is communicated with nethermost vacuum condensation evaporating chamber by airway; The effect of inlet mouth is by steam extraction, the vacuum pumping of vacuum condensation evaporating chamber; 2, the air outlet of vacuum heat exchange heat abstractor is fixed on the tank body of vacuum tank, and air outlet is communicated with the condenser outside vacuum tank tank; The effect of air outlet is that one end of the steam extraction in vacuum heat exchange heat abstractor, vacuum pumping 3, condensation fresh water pipe is arranged on below vacuum heat exchange heat abstractor, and it communicates with vacuum heat exchange heat sink interior; The fixing connection on fresh water pipe of the other end of condensation fresh water pipe; The effect of condensation fresh water pipe be by the condensed water elimination of vacuum heat exchange heat abstractor in fresh water pipe, finally flow in fresh water storehouse.
Described heating under vacuum evaporating chamber by heat conducting and heat radiating device, water shoot, valve, help the device that boils, dividing plate to form; Heating under vacuum evaporating chamber is in the centre in vacuum condensation evaporating chamber and fresh water storehouse;
The heat conducting and heat radiating device that install heating under vacuum evaporating chamber the inside is vacuum heat-conduction heat abstractor, or hot tube heat exchanger, or tubular heat exchanger.
On the dividing plate of heating under vacuum evaporating chamber upper end, valve is installed, valve plays the seawater of controlling vacuum pre-heating cabin and enters the flow of heating under vacuum evaporating chamber; The water shoot of installing on valve can directly be discharged to water below evaporating chamber, avoids contacting of seawater and steam.The dividing plate of lower end is being fixedly connected with vacuum condensation evaporating chamber, on lower endplate, valve is installed, helps the device that boils; 1, valve plays control seawater and is discharged to vacuum condensation evaporating chamber; 2, help the inlet mouth of the device that boils outside vacuum tank, air is imported in vacuum tank, help the device that boils can continually provide the gas of nucleate points to prevent bumping, allow boiling continue and stablize.
Heating under vacuum evaporating chamber the inside is provided with vacuum heat-conduction heat abstractor; 1, the heat conduction import of vacuum heat-conduction heat abstractor is fixed on the tank body of vacuum tank, and it is communicated with on heat power supply device; The effect of heat conduction import is that the heat-conducting work medium of heat power supply device is imported in vacuum heat-conduction heat abstractor, for dispelling the heat, heating to seawater; 2, the catheter outlet of vacuum heat-conduction heat abstractor is communicated with on heat power supply device; The effect of catheter outlet is to lose the heat-conducting work medium of heat energy, after reheating, again enters vacuum heat-conduction heat abstractor by heat conduction import and dispels the heat, the heat conduction, the heat radiation that go round and begin again by importing heat power supply device.
Described vacuum condensation evaporating chamber by heat exchange heat abstractor, condensate drainage pipe, valve, help the device that boils, dividing plate to form.Vacuum condensation evaporating chamber is in the centre of vacuum pre-heating cabin and heating under vacuum evaporating chamber, and the quantity of vacuum condensation evaporating chamber is 1-5;
The heat exchange heat abstractor that install vacuum condensation evaporating chamber the inside is vacuum heat exchange heat abstractor, or hot tube heat exchanger, or tubular heat exchanger.
On the dividing plate of vacuum condensation evaporating chamber upper end, valve is installed, valve plays the seawater of controlling heating under vacuum evaporating chamber and enters the flow of vacuum condensation evaporating chamber; The water shoot of installing on valve can directly be discharged to water below evaporating chamber, avoids contacting of seawater and steam.The dividing plate of lower end is being fixedly connected with heating under vacuum evaporating chamber, valve is installed on dividing plate, helps the device that boils; 1, the valve of lower endplate is the flow of controlling the dense sea brine discharge vacuum tank after desalination; 2, help the inlet mouth of the device that boils outside vacuum tank, air is imported in vacuum tank, help the device that boils can continually provide the gas of nucleate points to prevent bumping, allow boiling continue and stablize.
The vacuum heat exchange heat abstractor that install vacuum condensation evaporating chamber the inside; 1, the inlet mouth of vacuum heat exchange heat abstractor is fixed on dividing plate, and inlet mouth is communicated with heating under vacuum evaporating chamber; The effect of inlet mouth is by steam extraction, the vacuum pumping of heating under vacuum evaporating chamber; 2, the air outlet of vacuum heat exchange heat abstractor is in vacuum condensation evaporating chamber; The effect of air outlet is that one end of the steam extraction in vacuum heat exchange heat abstractor, vacuum pumping 3, condensation fresh water pipe is arranged on below vacuum heat exchange heat abstractor, and it communicates with vacuum heat exchange heat sink interior; The fixing connection on fresh water pipe of the other end of condensation fresh water pipe; The effect of condensation fresh water pipe be by the condensed water elimination of vacuum heat exchange heat abstractor in fresh water pipe, finally collect in fresh water storehouse.
Described heat power supply device is that it is being communicated with the heat conducting and heat radiating device in heating under vacuum evaporating chamber storehouse to the device of heat-conducting work medium heating.Heat power supply device can be boiler or hotblast stove or electricradiator or air energy heat pump or sun power or residual heat using device.
Heat-conducting work medium is water, or thermal oil, or gas, or steam.
Described vacuum pump, condenser is arranged on vacuum tank outside; 1, the inlet mouth of condenser is connecting the air outlet of heat exchange heat abstractor; 2, the air outlet of condenser is being connected the inlet mouth of vacuum pump by airway; 3, vacuum pump plays the gas in vacuum tank tank is extracted out, makes the gas atmosphere in vacuum tank reach needed vacuum tightness.
The technical process of the sea water desaltination of multiple-effect vacuum boiling type sea water desalinating plant is: in the storehouse of heating under vacuum evaporating chamber, vacuum condensation evaporating chamber and the vacuum pre-heating cabin of multiple-effect vacuum boiling type sea water desalinating plant, vacuum tightness is all different vacuum tightness pressure; The vacuum tightness pressure of vacuum condensation evaporating chamber, heating under vacuum evaporating chamber, vacuum pre-heating cabin is different successively decreasing from top to bottom, and the vacuum tightness pressure of the vacuum tightness pressure ratio heating under vacuum evaporating chamber of vacuum condensation evaporating chamber is low.The condensation of evaporation of seawater and steam is to complete in the vacuum tank that has the different vacuum tightnesss of staged, both can reduce the boiling temperature of water, reduces fouling, also can make heat energy be repeatedly used.
Help the device that boils can continually provide the gas of nucleate points to prevent bumping, allow boiling continue and stablize.
1, seawater enters vacuum pre-heating cabin, heating under vacuum evaporating chamber, the vacuum condensation evaporating chamber of vacuum tank successively through valve, and vacuum pump starts to vacuumize starting in vacuum tank.
2, the heat-conducting work medium in heat power supply device by the heat energy of institute's load by the vacuum heat-conduction heat abstractor in heating under vacuum evaporating chamber to the heating of seawater in storehouse, the raise temperature that reaches capacity of seawater temperature, start vaporizer, help the device that boils to play the effect of boiling that helps of seawater vaporization distillation, institute's steam that obtains (primary steam) rises in evaporating chamber.
3, steam (primary steam) is subject to the gravitation of air pressure difference in vacuum tank, enter condensation in the vacuum heat radiation heat abstractor in vacuum condensation evaporating chamber, heat radiation by inlet mouth, the heat that condensable gases in steam (primary steam) gives out in the process of condensation, give the heating of seawater in vacuum condensation evaporating chamber, seawater temperature raises, the temperature that reaches capacity, start vaporizer, helps the device that boils to play the effect of boiling that helps of seawater vaporization distillation; Institute's steam that obtains (secondary steam) rises in evaporating chamber;
Condensable gases in steam (primary steam) is condensed into fresh water in the process of condensation, and by condensate drainage pipe, fresh water pipe is discharged in fresh water storehouse; Not condensable gases in steam (primary steam), after condensation, is discharged in next vacuum condensation evaporating chamber storehouse.
4, steam (secondary steam) is subject to the gravitation of air pressure difference in vacuum tank, enter condensation in the vacuum heat radiation heat abstractor in next vacuum condensation evaporating chamber, heat radiation by inlet mouth, the heat that condensable gases in steam (secondary steam) gives out in the process of condensation, give the heating of seawater in vacuum condensation evaporating chamber, seawater temperature raises, the temperature that reaches capacity, start vaporizer, helps the device that boils to play the effect of boiling that helps of seawater vaporization distillation; The steam that obtains (three steam) rises in evaporating chamber;
Condensable gases in steam (secondary steam) is condensed into fresh water in the process of condensation, and by condensate drainage pipe, fresh water pipe is discharged in fresh water storehouse; Not condensable gases in steam (secondary steam), after condensation, is discharged in next vacuum pre-heating cabin storehouse.
5, steam (three steam) is subject to the gravitation of air pressure difference in vacuum tank, by passing through airway, enter condensation in the vacuum heat radiation heat abstractor in vacuum pre-heating cabin, heat radiation through inlet mouth, the heat that condensable gases in steam (three steam) gives out in the process of condensation, give the heating of seawater in vacuum pre-heating cabin, seawater temperature raises.
Condensable gases in steam (three steam) is condensed into fresh water in the process of condensation, and by condensate drainage pipe, fresh water pipe is discharged in fresh water storehouse; Not condensable gases in steam (three steam), after condensation, after the condensation again of the condenser outside vacuum tank, is discharged in atmosphere by vacuum pump.
6, in vacuum condensation evaporating chamber, unevaporated seawater is dense sea brine, and dense sea brine is discharged to vacuum tank outside by valve.
7, the fresh water in storehouse, fresh water storehouse is discharged to vacuum tank outside by valve.
The utility model compared with prior art has following beneficial effect: the evaporation of seawater of multiple-effect vacuum boiling type sea water desalinating plant and the condensation of steam are to complete in the vacuum tank with the different vacuum tightnesss of staged; Vacuum tank heat insulating material for external does thermal insulation layer, and in tank, temperature is difficult for scattering and disappearing; Multiple-effect vacuum boiling type sea water desalinating plant adopts the evaporating chamber of staged different pressures vacuum tightness to have the corresponding effect water vapor boiling point that successively decreases, and makes the heat energy of steam obtain recycling multistage, multiple-effect; Vacuum tank is successively inputted, discharged to valve by seawater, keeps the different vacuum tightnesss of vacuum tank internal gas pressure pressure; In vacuum tank, heat conduction and heat radiation rate of heating is fast, helps the device that boils to play the effect of boiling that helps of seawater vaporization distillation; Steam-to-vacuum condensation is rapid, and the vacuum tightness vaporization boiling point high, water in vacuum tank is low, and steam waste heat can repeatedly utilize, and greatly reduces the tooling cost of sea water desaltination.Vacuum boiling type desalting equipment is because vaporization temperature is low, and scale problems is also not serious, needs every year the number of times cleaning to be also no more than 1-2 times.
Brief description of the drawings:
Fig. 1 is the organigram of the utility model multiple-effect vacuum boiling type sea water desalinating plant;
Fig. 2 is the structure cutaway view of the utility model multiple-effect vacuum boiling type sea water desalinating plant;
Fig. 3 is the vacuum heat-conduction heat abstractor sectional view of the utility model multiple-effect vacuum boiling type sea water desalinating plant;
Fig. 4 is the heat exchange heat abstractor sectional view in the vacuum pre-heating cabin of the utility model multiple-effect vacuum boiling type sea water desalinating plant;
Fig. 5 is the heat exchange heat abstractor sectional view in the vacuum condensation evaporating chamber of the utility model multiple-effect vacuum boiling type sea water desalinating plant;
Fig. 6 is the device sectional view that boils that helps of the utility model multiple-effect vacuum boiling type sea water desalinating plant;
Specifically execute mode:
Below in conjunction with drawings and Examples, the utility model is described further.
As shown in Figure 1 and Figure 2: multiple-effect vacuum boiling type sea water desalinating plant by vacuum tank (9), valve (3), help the device that boils (10), vacuum pump (7), condenser (4), heat exchange heat abstractor, heat conducting and heat radiating device, heat power supply device (8), fresh water pipe (6), water shoot (5), condensation fresh water pipe (14), airway (15) to form;
It is the stainless-steel sheet of 10mm that the tank body of described vacuum tank (9) is made material; 1, the shape of cross section of vacuum tank (9) is round-shaped; 2, the tank body of vacuum tank (9) outside is provided with lagging material.
Described heat power supply device (8) is heating unit, and heat power supply device (8) is sun power.
Described vacuum pump (7), condenser (4) is arranged on vacuum tank (9) outside; 1, the inlet mouth of condenser (4) is connecting the air outlet (13) of vacuum heat exchange heat abstractor (1); 2, the air outlet of condenser (4) is being connected the inlet mouth of vacuum pump (7) by airway (15).
As shown in Figure 2: vacuum tank (9) is inner to be made up of vacuum pre-heating cabin (C), heating under vacuum evaporating chamber (A), vacuum condensation evaporating chamber (B), fresh water storehouse (D);
1, vacuum tank (9) inside successively from bottom to top, is spaced apart vacuum tank (9) internal space with dividing plate (11) fresh water storehouse (D), vacuum condensation evaporating chamber (B), heating under vacuum evaporating chamber (A), the vacuum pre-heating cabin (C) of desired size, volume; Dividing plate (11) is the metal sheet of material 5mm, and dividing plate (11) is as a whole with the fixed seal connection of vacuum tank (9) tank body;
2, vacuum pre-heating cabin (C) in vacuum tank (9) above first location, fresh water storehouse (D) in vacuum tank (9) below first location; Vacuum condensation evaporating chamber (B) is on fresh water storehouse (D), and heating under vacuum evaporating chamber (A) is between vacuum condensation evaporating chamber (B), vacuum pre-heating cabin (C); The quantity of vacuum condensation evaporating chamber (B) is 2.
3, each storehouse is an independently bin, and the water of storehouse and inside, storehouse is controlled discharge turnover by valve (3); Steam, gas connect tandem working by inlet mouth, the air outlet of heat exchange heat abstractor.
As shown in Figure 3: one end heat conduction import (16) of the heat pipe of vacuum heat-conduction heat abstractor (2), the other end catheter outlet (18), has heat-conducting work medium (19) in heat pipe; Heat-conducting work medium (19) is water.
Heat conduction import (16), catheter outlet (18) are connected respectively to heat power supply device (8);
1, the heat-conducting work medium (19) that is loaded with heat energy is entered in vacuum heat-conduction heat abstractor (2) and is carried out heat conduction, heat radiation by heat conduction import (16);
2, the leave heat-conducting work medium (19) of heat energy is entered in vacuum heat-conduction heat abstractor (2) again and is re-started heating by catheter outlet (18);
3, constantly heating of heat-conducting work medium (19) like this, heat conduction, heat radiation, heating, heat conduction, heat radiation, the work going round and beginning again.
As shown in Figure 4: below the vacuum heat exchange heat abstractor (1) in vacuum pre-heating cabin, have inlet mouth (12), have air outlet (13) above; Below vacuum heat exchange heat abstractor (1), be connected with condensation fresh water pipe (14).
1, the inlet mouth (12) of vacuum heat exchange heat abstractor (1) is arranged on dividing plate (11) above, connects with vacuum condensation evaporating chamber (B);
2, the air outlet (13) of vacuum heat exchange heat abstractor (1) is connected to the inlet mouth of condenser (4);
3, the fresh water of steam condensation in vacuum heat exchange heat abstractor (1) flows into fresh water pipe (6), fresh water storehouse (D) by condensation fresh water pipe (14);
4, the heat energy that steam gives out when condensation in vacuum heat exchange heat abstractor (1) is to the heating of seawater in vacuum condensation evaporating chamber (B).
As shown in Figure 5: the vacuum heat exchange heat abstractor (1) of vacuum condensation evaporating chamber (B) above have inlet mouth (12), have air outlet (13) below, be connected with condensation fresh water pipe (14) below vacuum heat exchange heat abstractor (1).
1, vacuum heat exchange heat abstractor (1) is arranged on dividing plate (11), its inlet mouth (12) extends upward dividing plate (11) in a upper evaporating chamber, and inlet mouth (12) can be drawn into the steam in a upper evaporating chamber to come in vacuum heat exchange heat abstractor (1);
2, the air outlet (13) of vacuum heat exchange heat abstractor (1) is in vacuum condensation evaporating chamber (B), and its air outlet (13) will be higher than the water surface that desalinizes seawater in vacuum condensation evaporating chamber (B) storehouse;
3, the fresh water of steam condensation in vacuum heat exchange heat abstractor (1) flows into fresh water pipe (6), fresh water storehouse (D) by condensation fresh water pipe (14);
4, the heat energy that steam gives out when condensation in vacuum heat exchange heat abstractor (1) is to the heating of seawater in vacuum condensation evaporating chamber (B).
As shown in Figure 6: described helping boiled, and to be placed in dividing plate (11) upper for device (10), helps the inlet mouth (12) of the device that boils (10) outside vacuum tank (9), air is imported in vacuum tank (9) from air outlet to (13) out.
As shown in Figure 2: described vacuum pre-heating cabin (C) is made up of heat exchange heat abstractor, condensate drainage pipe (14), valve (3), dividing plate (11); Vacuum pre-heating cabin (C) the top in vacuum tank (9), vacuum tank (9) upper end is installed with valve (3), and valve (3) plays the flow that enters vacuum tank (9) of controlling seawater; The dividing plate (11) of lower end is being fixedly connected with heating under vacuum evaporating chamber (A), and valve (3) is installed on dividing plate (11), has water shoot (5) on valve (3);
The heat exchange heat abstractor that install vacuum pre-heating cabin (C) the inside is vacuum heat exchange heat abstractor (1):
1, the inlet mouth (12) of vacuum heat exchange heat abstractor (1) is fixed on dividing plate (11) above, and it is communicated with vacuum condensation evaporating chamber (D); The effect of inlet mouth (12) is by steam extraction, the vacuum pumping of vacuum condensation evaporating chamber (B);
2, the air outlet of vacuum heat exchange heat abstractor (1) is fixed on the tank body of vacuum tank (9), and it is communicated with the condenser (4) outside vacuum tank (9) tank; The effect of air outlet is by steam extraction, vacuum pumping in vacuum heat exchange heat abstractor;
3, one end of condensation fresh water pipe (14) is arranged on below vacuum heat exchange heat abstractor (1), and it communicates with vacuum heat exchange heat abstractor (1) inside; The fixing connection on fresh water pipe (6) of the other end of condensation fresh water pipe (14); The effect of condensation fresh water pipe (14) is that the condensed water elimination of vacuum heat exchange heat abstractor (1) is inner to fresh water pipe (6), finally collects in fresh water storehouse (D).
As shown in Figure 2: described heating under vacuum evaporating chamber (A) by heat conducting and heat radiating device, water shoot (5), valve (3), help the device that boils (10), dividing plate (11) to form; Heating under vacuum evaporating chamber (A) is in the centre of vacuum condensation evaporating chamber (B) and vacuum pre-heating cabin (C).
On the dividing plate (11) of heating under vacuum evaporating chamber (A) upper end, valve (3) is installed, valve (3) is provided with water shoot (5) below; The dividing plate (11) of lower end is being fixedly connected with vacuum condensation evaporating chamber (B), valve (3) is installed on lower endplate (11), helps the device that boils (10); Help the inlet mouth (12) of the device that boils (10) outside vacuum tank (9), air distributes in vacuum tank (9) from air outlet (13).
The heat conducting and heat radiating device that install heating under vacuum evaporating chamber (A) the inside is vacuum heat-conduction heat abstractor (2);
1, the heat conduction import (16) of vacuum heat-conduction heat abstractor (2) is fixed on the tank body of vacuum tank (9), and it is communicated with on heat power supply device (8); The effect of heat conduction import (16) is that the heat-conducting work medium of heat power supply device (8) (9) is imported in vacuum heat-conduction heat abstractor (2), heats to seawater for heat radiation;
2, the catheter outlet (18) of vacuum heat-conduction heat abstractor (2) is communicated with on heat power supply device (8); The effect of catheter outlet (18) is by the heat-conducting work medium that loses heat energy (19), after reheating by importing heat power supply device (8), heat-conducting work medium (19) again enters vacuum heat-conduction heat abstractor (2) by heat conduction import (16) and dispels the heat, the heat conduction, the heat radiation that go round and begin again.
As shown in Figure 2: described vacuum condensation evaporating chamber (B) by heat exchange heat abstractor, condensate drainage pipe (14), valve (3), help the device that boils (10), water shoot (5), dividing plate (11) to form.Vacuum condensation evaporating chamber (B) is in the centre of fresh water storehouse (C) and heating under vacuum evaporating chamber (B); The quantity of vacuum condensation evaporating chamber (B) is 2.
On the dividing plate (11) of vacuum condensation evaporating chamber (B) upper end, valve (3) is installed, valve (3) is provided with water shoot (5) below; The dividing plate (11) of lower end is being fixedly connected with fresh water storehouse (C), on the dividing plate (11) of lower end, valve (3) is installed, helps the device that boils (10);
Help the inlet mouth (12) of the device that boils (10) outside vacuum tank (9), air distributes in vacuum tank (9) from air outlet (13).
The heat exchange heat abstractor that vacuum condensation evaporating chamber (B) is installed is vacuum heat exchange heat abstractor (1):
1, the inlet mouth (12) of vacuum heat exchange heat abstractor (1) is fixed on the dividing plate (11) of lower end, and it is communicated with heating under vacuum evaporating chamber (A); The effect of inlet mouth (12) is by steam extraction, the vacuum pumping of heating under vacuum evaporating chamber (A);
2, the air outlet (13) of vacuum heat exchange heat abstractor (1) is inner at vacuum condensation evaporating chamber (B); The effect of air outlet (13) is by steam extraction, vacuum pumping in vacuum heat exchange heat abstractor (1);
3, one end of condensation fresh water pipe (14) is arranged on below vacuum heat exchange heat abstractor (1), and it communicates with vacuum heat exchange heat abstractor (1) inside; The fixing connection on fresh water pipe (6) of the other end of condensation fresh water pipe (14);
4, in vacuum condensation evaporating chamber (B), unevaporated seawater is dense sea brine, and dense sea brine is discharged to vacuum tank (9) outside by valve (3).
The desalination process flow process of multiple-effect vacuum boiling type sea water desalinating plant is: the evaporation of seawater of multiple-effect vacuum boiling type sea water desalinating plant and the condensation of steam are to complete in the vacuum tank with the different vacuum tightnesss of staged.
,seawater enters vacuum pre-heating cabin (C), heating under vacuum evaporating chamber (A), the vacuum condensation evaporating chamber (B) of vacuum tank (9) successively through valve (3);
2, vacuum pump (7) starts the interior gas of vacuum tank (9) to start to vacuumize:
3, heat-conducting work medium (19) is through the heating of heat power supply device (8), heat-conducting work medium (19) is given the heating of seawater in storehouse by contained heat energy by the vacuum heat-conduction heat abstractor (2) in heating under vacuum evaporating chamber (A), the raise temperature that reaches capacity of seawater temperature, start vaporizer, institute's steam that obtains (primary steam) rises in heating under vacuum evaporating chamber (A).
Heat-conducting work medium (19) is water.
4, steam (primary steam) is subject to the gravitation of the interior air pressure difference of vacuum tank (9), enter the interior condensation of vacuum heat radiation heat abstractor (1), the heat radiation in vacuum condensation evaporating chamber (B) by inlet mouth (12), the heat that condensable gases in steam (primary steam) gives out in the process of condensation, give the heating of seawater in vacuum condensation evaporating chamber (B), seawater temperature raises, the temperature that reaches capacity, start vaporizer, institute's steam that obtains (secondary steam) rises in evaporating chamber;
Condensable gases in steam (primary steam) is condensed into fresh water in the process of condensation, is discharged in fresh water storehouse (D) by condensate drainage pipe (14), fresh water pipe (6); Not condensable gases in steam (primary steam), after condensation, is discharged in vacuum condensation evaporating chamber (B) storehouse.
5, the vacuum condensation evaporating chamber (B) of multiple-effect vacuum boiling type sea water desalinating plant is 2 vacuum condensation evaporating chambers;
6, steam (secondary steam) is subject to the gravitation of the interior air pressure difference of vacuum tank (9), enter the interior condensation of vacuum heat radiation heat abstractor (1), the heat radiation in next vacuum condensation evaporating chamber (B) by inlet mouth (12), the heat that condensable gases in steam (secondary steam) gives out in the process of condensation, give the heating of seawater in vacuum condensation evaporating chamber (B), seawater temperature raises, temperature reaches capacity, start vaporizer, the steam that obtains (three steam) rises in vacuum condensation evaporating chamber (B);
Condensable gases in steam (secondary steam) is condensed into fresh water in the process of condensation, and by condensate drainage pipe (14), fresh water pipe (6) is discharged in fresh water storehouse (D); Not condensable gases in steam (secondary steam), after condensation, is discharged to vacuum in vacuum pre-heating cabin (C) storehouse heat radiation heat abstractor (1) by airway (15) inner.
7, steam (three steam) is subject to the gravitation of the interior air pressure difference of vacuum tank (9), enter the interior condensation of vacuum heat radiation heat abstractor (1), the heat radiation in vacuum pre-heating cabin (C) by airway (15) by inlet mouth (13), the heat that condensable gases in steam (three steam) gives out in the process of condensation, gives the heating of seawater preheating in vacuum pre-heating cabin (C).
Condensable gases in steam (three steam) is condensed into fresh water in the process of condensation, and by condensate drainage pipe (14), fresh water pipe (6) is discharged in fresh water storehouse (D); Not condensable gases in steam (three steam), after condensation, after the condensation again of the condenser (4) outside vacuum tank (9), is discharged in atmosphere by vacuum pump (7).
8, the fresh water in storehouse, fresh water storehouse (D) is discharged to vacuum tank (9) outside by valve (3).
More than that multiple-effect vacuum boiling type sea water desalinating plant provided by the utility model is introduced; having applied specific case herein sets forth structural principle of the present utility model and embodiment; above embodiment is just for helping to understand making method of the present utility model and core concept thereof; those skilled in the art is from above-mentioned design; without performing creative labour; the many variations of having done, all drops on protection domain of the present utility model.
Claims (10)
1. a multiple-effect vacuum boiling type sea water desalinating plant, is characterized in that: multiple-effect vacuum boiling type sea water desalinating plant by vacuum tank (9), valve (3), help the device that boils (10), vacuum pump (7), condenser (4), heat exchange heat abstractor, heat conducting and heat radiating device, heat power supply device (8), fresh water pipe (6), water shoot (5), condensation fresh water pipe (14), airway (15) to form;
Vacuum pump (7), condenser (4) are arranged on vacuum tank (9) outside; The inlet mouth of condenser (4) is connecting the air outlet (13) of vacuum heat exchange heat abstractor (1);
The air outlet of condenser (4) is being connected the inlet mouth of vacuum pump (7) by airway (15);
Dividing plate (11) is heating under vacuum evaporating chamber (A), vacuum condensation evaporating chamber (B), vacuum pre-heating cabin (C), fresh water storehouse (D) by the inner spaced interval of vacuum tank (9); Vacuum pre-heating cabin (C) in vacuum tank (9) above first location, fresh water storehouse (D) in vacuum tank (9) below first location; Vacuum condensation evaporating chamber (B) is on fresh water storehouse (D); Heating under vacuum evaporating chamber (A) is between vacuum condensation evaporating chamber (B), vacuum pre-heating cabin (C); The quantity of vacuum condensation evaporating chamber (B) is 1-5;
The heat conducting and heat radiating device of installing in heating under vacuum evaporating chamber (A) storehouse is vacuum heat-conduction heat abstractor (2), or hot tube heat exchanger, or tubular heat exchanger;
The heat exchange heat abstractor of installing in the storehouse of vacuum condensation evaporating chamber (B) and vacuum pre-heating cabin (C) is vacuum heat exchange heat abstractor (1), or hot tube heat exchanger, or tubular heat exchanger;
Heat power supply device (8) is being communicated with the heat conducting and heat radiating device in heating under vacuum evaporating chamber (A) storehouse;
Help the device that boils (10) to be arranged on dividing plate (11) upper, air is entered from inlet mouth (12), and from air outlet, (13) out.
2. multiple-effect vacuum boiling type sea water desalinating plant according to claim 1, is characterized in that: it is 3-25mm metal sheet that the tank body of vacuum tank (9) is made material; The shape of cross section of vacuum tank (9) is round-shaped, or square.
3. multiple-effect vacuum boiling type sea water desalinating plant according to claim 1, is characterized in that: dividing plate (11) is as a whole with the fixed seal connection of vacuum tank (9) tank body; Each storehouse is an independently bin, and the water in storehouse and storehouse is controlled discharge turnover by valve (3); Steam, gas connect tandem working by inlet mouth, the air outlet of heat exchange heat abstractor; Dividing plate (11) is the metal sheet of 2-10mm.
4. multiple-effect vacuum boiling type sea water desalinating plant according to claim 1, it is characterized in that: vacuum heat exchange heat abstractor (1) has inlet mouth (12), air outlet (13), be connected with condensation fresh water pipe (14) below vacuum heat exchange heat abstractor (1); The fresh water of steam condensation in vacuum heat exchange heat abstractor (1) flows into fresh water pipe (6), fresh water storehouse (D) by condensation fresh water pipe (14).
5. multiple-effect vacuum boiling type sea water desalinating plant according to claim 1, is characterized in that: one end heat conduction import (16) of the heat pipe of vacuum heat-conduction heat abstractor (2), and the other end catheter outlet (18), has heat-conducting work medium (19) in heat pipe; Heat conduction import (16), catheter outlet (18) are connected respectively to heat power supply device (8).
6. multiple-effect vacuum boiling type sea water desalinating plant according to claim 1, is characterized in that: help the inlet mouth (12) of the device that boils (10) outside vacuum tank (9), air distributes the inside in vacuum tank (9) by air outlet (13).
7. multiple-effect vacuum boiling type sea water desalinating plant according to claim 1, is characterized in that: vacuum pre-heating cabin (C) is made up of heat exchange heat abstractor, condensate drainage pipe (14), valve (3), water shoot (5), dividing plate (11); Vacuum pre-heating cabin (C) the top in vacuum tank (9), vacuum tank (9) upper end is installed with valve (3), and valve (3) plays the flow that enters vacuum tank (9) of controlling seawater; The dividing plate (11) of lower end is being fixedly connected with heating under vacuum evaporating chamber (A), and valve (3), heat exchange heat abstractor are installed on dividing plate (11), and valve (3) is provided with water shoot (5) below.
8. multiple-effect vacuum boiling type sea water desalinating plant according to claim 1, is characterized in that: heating under vacuum evaporating chamber (A) by heat conducting and heat radiating device, water shoot (5), valve (3), help the device that boils (10), dividing plate (11) to form; On the dividing plate (11) of heating under vacuum evaporating chamber (A) upper end, valve (3) is installed, valve (3) is provided with water shoot (5) below, and valve (3) plays the flow that enters heating under vacuum evaporating chamber (A) of the seawater of controlling vacuum pre-heating cabin (C); The dividing plate (11) of lower end is being fixedly connected with vacuum condensation evaporating chamber (B), valve (3) is installed on lower endplate (11), helps the device that boils (10), heat conducting and heat radiating device.
9. multiple-effect vacuum boiling type sea water desalinating plant according to claim 1, is characterized in that: vacuum condensation evaporating chamber (B) by heat exchange heat abstractor, condensate drainage pipe (14), valve (3), help the device that boils (10), water shoot (5), dividing plate (11) to form; Vacuum condensation evaporating chamber (B) is in the centre of fresh water storehouse (D) and heating under vacuum evaporating chamber (A); On the dividing plate (11) of vacuum condensation evaporating chamber (B) upper end, valve (3) is installed, valve (3) is provided with water shoot (5) below; The dividing plate (11) of lower end is being fixedly connected with fresh water storehouse (D), valve (3) is installed on dividing plate (11), helps the device that boils (10), heat exchange heat abstractor.
10. multiple-effect vacuum boiling type sea water desalinating plant according to claim 1, is characterized in that: heat power supply device (8) is the heating unit of heat-conducting work medium (19); Heat power supply device (8) is boiler or hotblast stove or electricradiator or air energy heat pump or sun power or residual heat using device; Heat-conducting work medium (19) is through the heating of heat power supply device (8), and heat-conducting work medium (19) is water, or thermal oil or gas or steam.
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| CN201420302901.1U CN203922782U (en) | 2014-06-09 | 2014-06-09 | Multiple-effect vacuum boiling type sea water desalinating plant |
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| CN201420302901.1U CN203922782U (en) | 2014-06-09 | 2014-06-09 | Multiple-effect vacuum boiling type sea water desalinating plant |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105271458A (en) * | 2014-06-09 | 2016-01-27 | 程长青 | Multi-effect vacuum boiling type sea water desalinization apparatus |
| CN106698568A (en) * | 2017-02-15 | 2017-05-24 | 南京航空航天大学 | Automatic-manual dual-mode solar step boiling seawater desalination device and working method |
-
2014
- 2014-06-09 CN CN201420302901.1U patent/CN203922782U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105271458A (en) * | 2014-06-09 | 2016-01-27 | 程长青 | Multi-effect vacuum boiling type sea water desalinization apparatus |
| CN106698568A (en) * | 2017-02-15 | 2017-05-24 | 南京航空航天大学 | Automatic-manual dual-mode solar step boiling seawater desalination device and working method |
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