CN203938555U - A kind of vacuum seawater desalination system - Google Patents
A kind of vacuum seawater desalination system Download PDFInfo
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- CN203938555U CN203938555U CN201420365054.3U CN201420365054U CN203938555U CN 203938555 U CN203938555 U CN 203938555U CN 201420365054 U CN201420365054 U CN 201420365054U CN 203938555 U CN203938555 U CN 203938555U
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- water
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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
A vacuum seawater desalination system, comprises successively the water intaking primary heater unit, vacuum distillation plant and the fresh water storing device that connect, and the system control device being electrically connected with vacuum distillation plant and fresh water storing device; Described water intaking primary heater unit comprises seawater filter and seawater preheating pond; Described vacuum distillation plant comprises salt water heater and steam condenser; Described fresh water storing device comprises airtight vacuum fresh-water tank and the vacuum pump being communicated with vacuum fresh-water tank.The utility model utilizes the waste heat of the concentrated seawater after salt water heater evaporation to carry out preheating to the seawater of needs desalination, and utilize the temperature difference of seawater and steam to carry out condensation to fresh water steam, the waste heat that the system that makes full use of produces and the energy of the Nature, have the effect of energy-conserving and environment-protective; System arranges the function that a vacuum pump provides vacuum tightness and draws water to be embodied as system, a tractor serves several purposes; Desalination process based on vacuum seawater desalination system, fresh water yield is higher than the product in equal heat-collecting temperature and technique.
Description
Technical field
The utility model relates to sea water desaltination field, is specifically related to a kind of vacuum seawater desalination system.
Background technology
China is vast in territory, seawater and underground brackish water aboundresources, under fresh water severe situation in short supply, exploitation and using of seawater and brackish water resource, carry out seawater (brackish water) desalination and become an effective strategy approach increasing income and decreasing expenditure, solve China's fresh water problem in short supply.Desalination technology is that the salinity in seawater is separated with moisture, finally obtains technology and the process of fresh water and concentrated salt solution.According to demineralising process classification, method for desalting seawater mainly contains hot method, embrane method and chemical process three major types.Hot method desalination technology is mainly distillation method, comprises multistage flash evaporation and low-temperature distillation technology.Low-temperature distillation technology is to make to keep certain vacuum tightness in evaporator room, is negative pressure state, seawater is evaporated at a lower temperature and become steam, and steam is met condensation and formed fresh water.Because desalinizing seawater, low-temperature distillation method can utilize the low-grade energies such as sun power, to reasons such as the corrodibility of device are lower, development in recent years is rapid, but its main drawback is to maintain vacuum tightness in vaporizer to need a large amount of electric energy, supplying water and evaporating rear concentrated seawater discharge also needs to consume a large amount of pump merits, thereby construction costs is higher.If Chinese patent CN 2344390Y, CN1473765A, CN200978230Y etc. are to utilize vacuum pump to obtain seawater low temperature to desalinate required vacuum environment.Chinese patent CN 101177308A utilizes seawater gravity and barometric point natural method to produce vacuum, required energy Ratios traditional way is few, but this method is utilized the emptying acquisition vacuum of water filling, first vacuum tightness is lower, and in evaporation of seawater process vacuum tightness, can slowly reduce, until with normal atmosphere balance, cause vacuum tightness unstable, it is stable that seawater boiling point can not maintain, so fresh water yield is difficult to promote.
Seawater desalination system is in extracting seawater process, and salts contg and content of mineral substances due to seawater, have certain corrosive nature to seawater extraction pump, therefore the maintenance and repair of seawater extraction pump has been increased to cost.
Summary of the invention
The utility model is intended to overcome the above-mentioned deficiency of prior art, a kind of energy-conserving and environment-protective are provided, make full use of the Nature energy, improves fresh water yield, extends system work-ing life, reduces the vacuum seawater desalination system of maintenance cost.
The utility model is achieved through the following technical solutions:
A kind of vacuum seawater desalination system, comprise the water intaking primary heater unit, vacuum distillation plant and the fresh water storing device that connect successively, and the system control device being electrically connected with vacuum distillation plant and fresh water storing device, described water intaking primary heater unit comprises seawater filter and seawater preheating pond; Described seawater filter feed-water end is provided with intake pipe and is communicated with sea, and water side is provided with water-supply pipe and is connected with vacuum distillation plant; Described water-supply pipe wears seawater preheating pond; Described vacuum distillation plant comprises salt water heater and steam condenser; Described salt water heater is connected with water-supply pipe, and salt water heater bottom is provided with the water shoot being connected with seawater preheating pond; Described steam condenser is connected with salt water heater by vapour pipe, and is connected with fresh water storing device by fresh water pipe; Described fresh water storing device comprises airtight vacuum fresh-water tank and the vacuum pump being communicated with vacuum fresh-water tank.
Described salt water heater bottom is also provided with air intake duct, and air intake duct top is higher than salt water heater height; On described salt water heater, be also provided with the high-order limit switch of seawater and seawater low level limit switch, salt water heater bottom is provided with emptied of water bit switch.
The drainage pipe end of described salt water heater is located at bottom, seawater preheating pond; Top, seawater preheating pond is provided with overflow pipe; Described overflow pipe position height is lower than the water port position height of salt water heater; Bottom, seawater preheating pond is provided with blow-off pipe.
Described steam condenser is the prolong of the undersurface linking vapour pipe in sea and fresh water pipe of submerging.
Described prolong is snakelike or volution or spiral type with the water supply pipeline section that wears seawater preheating pond.
Described fresh water storing device also comprises fresh water water tank; Between described vacuum fresh-water tank and fresh water water tank, by water pipe, connect, vacuum pump is located on water pipe.
Described vacuum fresh-water tank is provided with vacuum meter; Described fresh water water tank is provided with the water supply pipe of drawing fresh water.
Described salt water heater top is provided with vent valve; Water-supply pipe between described seawater filter and seawater preheating pond is provided with feed water valve; Described water shoot is provided with exhaust-valve; Described air intake duct is provided with pressure lock; On the water-supply pipe at place, on described fresh water pipe and described seawater filter water side, be equipped with vacuum breaker; Described blow-off pipe is provided with wash water valve.
Described system control device comprises the secondary battery of the electric energy that central processing unit, power generation assembly and storage power generation assembly produce, and the power supply in parallel with secondary battery.
The beneficial effects of the utility model are:
1, seawater preheating pond utilizes the seawater after salt water heater evaporation concentration to heat, and the waste heat that the system that makes full use of produces can save energy;
2, the water port of salt water heater is higher than overflow pipe position height, so the seawater in salt water heater can not need to employ lift pump at Natural excrement under action of gravity, can save the energy and use and construction costs;
3, because the structure of native system is adapted at using on seashore or boats and ships, island, therefore environment for use is comparatively moist, salt water heater is provided with air intake duct, at evaporative process air, through air intake duct, enter salt water heater, air seethes in salt water heater, marine stream reaches evenly temperature, and by malaria drawing-in system, increases the fresh water yield of system; Air seethes the contact area that has increased air and seawater in process in seawater, has increased evaporation useful area, can accelerate fresh water evaporation;
4, native system has only adopted a vacuum pump, to meet seawater extraction, the acquisition of vacuum tightness and the extract function of fresh water, vacuum pump is arranged on fresh water storing device, fresh water salt content is low, very micro-to the corrosion of vacuum pump, can extend the work-ing life of vacuum pump, comparing need to be by sea water desalinating plant and the system of the direct extracting seawater of water pump, and native system can be saved a very large maintenance cost;
5, native system vacustat, the boiling point of seawater also remains on constant scope, can guarantee fresh water yield.
Accompanying drawing explanation
Fig. 1 is system pipeline connection diagram of the present utility model.
In figure: 1-seawater filter, 11-intake pipe, 2-seawater preheating pond, 21-overflow pipe, 3-salt water heater, 31-water-supply pipe, 32-water shoot, 33-air intake duct, 34-emptied of water bit switch, 35-vent valve, 36-feed water valve, 37-exhaust-valve, 38-pressure lock, 4-steam condenser, 41-vapour pipe, 42-fresh water pipe, 51-vacuum fresh-water tank, 52-fresh water water tank, 53-vacuum pump, 54-water pipe, 55-water supply pipe, 56-vacuum meter, 61-central processing unit, 62-power generation assembly, 63-secondary battery, 64-power supply.
Embodiment
For the ease of those skilled in the art's understanding, below in conjunction with accompanying drawing, the utility model will be further described.
As shown in Figure 1, as shown in Figure 1, a kind of vacuum seawater desalination system, comprise the water intaking primary heater unit, vacuum distillation plant and the fresh water storing device that connect successively, and the system control device being electrically connected with vacuum distillation plant and fresh water storing device, described water intaking primary heater unit comprises seawater filter 1 and seawater preheating pond 2, and described seawater filter 1 feed-water end is provided with intake pipe 11 and is communicated with sea, and water side is provided with water-supply pipe 31 and is connected with vacuum distillation plant; Described water-supply pipe 31 wears seawater preheating pond 2; Described vacuum distillation plant comprises salt water heater 3 and steam condenser 4; Described salt water heater 3 is provided with water-in and is connected with water-supply pipe 31, and salt water heater 3 bottoms are provided with water port and are connected with water shoot 32, and water shoot 32 ends 2 bottoms, seawater preheating pond of submerging; Described steam condenser 4 is connected with salt water heater 3 by vapour pipe 41, and is connected with fresh water storing device 5 by fresh water pipe 42.
Described fresh water storing device comprises airtight vacuum fresh-water tank 51, vacuum pump 53 and fresh water water tank 52; Between described vacuum fresh-water tank 51 and fresh water water tank 52, by water pipe 54, connect, vacuum pump 53 is located on water pipe 54.Vacuum pump 53 is arranged on fresh water storing device, and fresh water salt content is low, very micro-to the corrosion of vacuum pump, can extend the work-ing life of vacuum pump.Described vacuum fresh-water tank 51 is provided with vacuum meter 53; Described fresh water water tank 52 is provided with the water supply pipe 55 of drawing fresh water.
Described salt water heater 3 bottoms are also provided with air intake duct 33, and air intake duct 33 tops are higher than salt water heater 3 height.In salt water heater 3 bottoms, air intake duct 33 is set, make air seawater in suction process reach the state of seething, seawater temperature can be stirred, and native system is applicable to sea travel boats and ships or land, seashore, there was dampness in the air, and malaria sucks can increase fresh water yield.
On described salt water heater 3, be also provided with the high-order limit switch of seawater and seawater low level limit switch, salt water heater bottom is provided with emptied of water bit switch 34.In seawater suction process, seawater arrives the absorption that the high-order limit switch of seawater stops seawater; Total in evaporative process, when seawater liquid level drops to seawater low level limit switch, stop evaporation, trigger emptied of water bit switch 34, the seawater in emptying salt water heater 3, enters next work period.The present embodiment salt water heater is solar still, also can adopt other heating units to replace.
Described seawater preheating pond 2 is the concentrated seawater collecting tank after vacuum distillation plant distillation, and 2 tops, seawater preheating pond are provided with overflow pipe 21; Described overflow pipe 21 position height are lower than the water port position height of salt water heater 3.2 bottoms, seawater preheating pond are provided with blow-off pipe.
The prolong that described steam condenser 4 is the submerge undersurface linking vapour pipe 41 in sea and fresh water pipe 42.Described prolong is snakelike or volution or spiral type with the water supply pipeline section that wears seawater preheating pond 2.Snakelike or volution or spiral type can increase heat interchanging area, improve heat exchanger effectiveness.
Described salt water heater 3 tops are provided with vent valve 35; Water-supply pipe 31 between described seawater filter 1 and seawater preheating pond 2 is provided with feed water valve 36; Described water shoot 32 is provided with exhaust-valve 37; Described air intake duct 33 is provided with pressure lock 38; On described fresh water pipe 42 and on the water-supply pipe 31 at described seawater filter 2 places, water side, be equipped with vacuum breaker; Described blow-off pipe is provided with wash water valve.
Described system control device comprises the secondary battery 63 of the electric energy that central processing unit 61, power generation assembly 62 and storage power generation assembly 62 produce, and the power supply 64 in parallel with secondary battery 63, power supply 64 is alternative power source, can start power supply 64 for system power supply when power generation assembly 62 can not be powered in time.
During the utility model work, close vent valve 35, exhaust-valve 37 and pressure lock 38, make system in air-tight state, open feed water valve 36 and vacuum pump 53, the undersurface intake pipe 11 in the sea of submerging starts to draw seawater; Seawater enters seawater filter 1 through intake pipe 11 and filters, and the seawater after filtration is flowed through and worn the water-supply pipe 31 in seawater preheating pond 2, and seawater is carried out to preheating; Seawater after preheating enters salt water heater 3, when liquid level arrives the high-order limit switch of seawater, triggers the high-order limit switch of seawater and sends a signal to system control device; System control device is closed feed water valve 36, completes water intaking process and enters still-process; System control device is opened pressure lock 38, and air enters salt water heater 3 and seethes in salt water heater 33 through air intake duct 33, and marine stream makes temperature reach even; Close pressure lock 38, system internal gas pressure is maintained to-0.07 to-0.09Mpa; After the interior fresh water evaporation of salt water heater 3, when liquid level drops to seawater low level limit switch, trigger seawater low level limit switch and send a signal to system control device; Vacuum pump 53 cuts out, vent valve 35 is opened, and the seawater after concentrated is entered to seawater preheating pond; Concentrated seawater is emptying, and emptied of water bit switch 34 triggers and send a signal to system control device, and system enters next water intaking process.
Above content is in conjunction with concrete optimal way further detailed description of the utility model, should not assert that concrete enforcement of the present utility model is confined to above explanation.For those skilled in the art, without departing from the concept of the premise utility, can also make some simple deduction or replace, within the definite protection domain of the claim that all should be considered as being submitted to by the utility model.
Claims (9)
1. a vacuum seawater desalination system, comprises the water intaking primary heater unit, vacuum distillation plant and the fresh water storing device that connect successively, and with the system control device that vacuum distillation plant and fresh water storing device are electrically connected, it is characterized in that:
Described water intaking primary heater unit comprises seawater filter (1) and seawater preheating pond (2); Described seawater filter (1) feed-water end is provided with intake pipe (11) and is communicated with sea, and water side is provided with water-supply pipe (31) and is connected with vacuum distillation plant; Described water-supply pipe (31) wears seawater preheating pond (2);
Described vacuum distillation plant comprises salt water heater (3) and steam condenser (4); Described salt water heater (3) is connected with water-supply pipe (31), and salt water heater (3) bottom is provided with the water shoot (32) being connected with seawater preheating pond (2); Described steam condenser (4) is connected with salt water heater (3) by vapour pipe (41), and is connected with fresh water storing device (5) by fresh water pipe (42);
Described fresh water storing device comprises airtight vacuum fresh-water tank (51) and the vacuum pump (53) being communicated with vacuum fresh-water tank (51).
2. vacuum seawater desalination system according to claim 1, is characterized in that: described salt water heater (3) bottom is also provided with air intake duct (33), and air intake duct (33) top higher than salt water heater (3) highly; On described salt water heater (3), be also provided with the high-order limit switch of seawater and seawater low level limit switch, salt water heater bottom is provided with emptied of water bit switch (34).
3. vacuum seawater desalination system according to claim 2, is characterized in that: water shoot (32) end of described salt water heater (3) is located at bottom, seawater preheating pond (2); Top, seawater preheating pond (2) is provided with overflow pipe (21); Described overflow pipe (21) position height is lower than the water port position height of salt water heater (3); Bottom, seawater preheating pond (2) is provided with blow-off pipe.
4. vacuum seawater desalination system according to claim 3, is characterized in that: described steam condenser (4) is the prolong of the submerge undersurface linking vapour pipe in sea (41) and fresh water pipe (42).
5. vacuum seawater desalination system according to claim 4, is characterized in that: described prolong (4) and the water supply pipeline section that wears seawater preheating pond (2) are snakelike or volution or spiral type.
6. vacuum seawater desalination system according to claim 5, is characterized in that: described fresh water storing device also comprises fresh water water tank (52); Between described vacuum fresh-water tank (51) and fresh water water tank (52), by water pipe (54), connect, vacuum pump (53) is located on water pipe (54).
7. vacuum seawater desalination system according to claim 6, is characterized in that: described vacuum fresh-water tank (51) is provided with vacuum meter (53); Described fresh water water tank (52) is provided with the water supply pipe (55) of drawing fresh water.
8. vacuum seawater desalination system according to claim 7, is characterized in that: described salt water heater (3) top is provided with vent valve (35); Water-supply pipe (31) between described seawater filter (1) and seawater preheating pond (2) is provided with feed water valve (36); Described water shoot (32) is provided with exhaust-valve (37); Described air intake duct (33) is provided with pressure lock (38); On the water-supply pipe (31) that described fresh water pipe (42) is upper and described seawater filter (2) water side is located, be equipped with vacuum breaker; Described blow-off pipe is provided with wash water valve.
9. vacuum seawater desalination system according to claim 8, it is characterized in that: described system control device comprises the secondary battery (63) of the electric energy that central processing unit (61), power generation assembly (62) and storage power generation assembly (62) produce, and the power supply (64) in parallel with secondary battery (63).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420365054.3U CN203938555U (en) | 2014-07-03 | 2014-07-03 | A kind of vacuum seawater desalination system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420365054.3U CN203938555U (en) | 2014-07-03 | 2014-07-03 | A kind of vacuum seawater desalination system |
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| CN203938555U true CN203938555U (en) | 2014-11-12 |
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| CN201420365054.3U Withdrawn - After Issue CN203938555U (en) | 2014-07-03 | 2014-07-03 | A kind of vacuum seawater desalination system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104030515A (en) * | 2014-07-03 | 2014-09-10 | 任建军 | Vacuum desalination system and process |
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2014
- 2014-07-03 CN CN201420365054.3U patent/CN203938555U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104030515A (en) * | 2014-07-03 | 2014-09-10 | 任建军 | Vacuum desalination system and process |
| CN104030515B (en) * | 2014-07-03 | 2016-08-03 | 任建军 | A kind of vacuum seawater desalination system and technique |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141112 Effective date of abandoning: 20160803 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |