CN210193448U - Vacuum maintenance system for low-temperature multi-effect seawater desalination device - Google Patents
Vacuum maintenance system for low-temperature multi-effect seawater desalination device Download PDFInfo
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- CN210193448U CN210193448U CN201920454130.0U CN201920454130U CN210193448U CN 210193448 U CN210193448 U CN 210193448U CN 201920454130 U CN201920454130 U CN 201920454130U CN 210193448 U CN210193448 U CN 210193448U
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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
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- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
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Abstract
The utility model discloses a low temperature multiple-effect seawater desalination device vacuum maintenance system, including vacuum pump, evacuation import branch pipe way, evacuation import female line, evacuation import drainage branch pipe way, evacuation export pipeline, evacuation import branch pipe way and the light six effect exhaust tube in sea are connected, and evacuation import female line is connected with evacuation import branch pipe way, and the minimum department that evacuation import female line is close to the vacuum pump import sets up evacuation import drainage branch pipe way, and the vacuum pump is connected with the female pipeline of evacuation import, and evacuation export pipeline and vacuum pump connection, evacuation export pipeline minimum set up evacuation export drain pipe, sets up evacuation export drainage door on the evacuation export drain pipe, and evacuation export pipeline is connected to the atmosphere. The utility model discloses a low temperature multiple-effect sea water desalination device vacuum maintenance system can reduce the energy consumption well, and improve equipment's security and stability reduce the noise pollution to the environment.
Description
Technical Field
The utility model relates to a sea water desalination technical field especially relates to a low temperature multiple-effect sea water desalination device vacuum maintenance system.
Background
The seawater desalination system is an effective way for solving the shortage of water resources in coastal areas, and desalination of seawater is used for extracting fresh water, so that the utilization of surface water and exploitation of underground water are reduced, and the system plays an important role in open source throttling of water resource utilization. At present, the commonly used seawater desalination method is divided into a thermal method and a membrane method, wherein the thermal method comprises the following steps: multi-stage flash distillation, low temperature multi-effect distillation, and vapor compression distillation. The low-temperature multi-effect distillation (LT-MED) is characterized in that steam is introduced into a desalting device (called an evaporator), seawater is sprayed on the surface of a heat exchange tube bundle in the evaporator, steam in the tube is condensed, part of seawater is evaporated, generated secondary steam enters the next-stage tube to perform the same heat exchange process (each stage is called a first effect), finally, distilled water obtained by steam condensation is collected to obtain high-purity product fresh water, and the system can obtain product water which is several times of the amount of heating steam through multiple evaporation and condensation processes.
However, if the seawater desalination system is stopped for a long time, air enters the inside of the effect body, so that severe oxidation corrosion is easily formed, the effect body, a tube plate, a pipeline, a bolt and the like are corroded, the service life of the equipment is shortened, and the maintenance cost is increased.
The existing seawater desalination device does not have an independent vacuum maintenance system, the starting vacuumizing system can only be used for pumping air when the operation is stopped, steam is directly discharged during vacuumizing, energy waste is caused, the noise is high, certain influence is brought to the environment, and great influence is brought to the operation safety of adjacent equipment and closed buses. When the vacuum maintenance is operated in winter, because the water can not be injected into the system for preventing the pipeline from freezing, the temperature-reducing water pump can not be started, and the temperature-reducing water can not be added during the vacuumizing of the system, so that the safety of the equipment and the vacuumizing efficiency are influenced.
SUMMERY OF THE UTILITY MODEL
In view of the above problem, the utility model aims at providing a low temperature multiple-effect sea water desalination device vacuum maintenance system can reduce the energy consumption well, improve equipment's security and stability reduce the noise pollution to the environment.
The utility model provides a technical scheme that above-mentioned technical problem adopted is: the utility model provides a low temperature multiple-effect sea water desalination device vacuum maintenance system, includes vacuum pump, evacuation import branch pipe way, evacuation import female line, evacuation import drainage branch pipe way, evacuation outlet pipe way, evacuation import branch pipe way and the light six effect exhaust tube in sea are connected, evacuation import branch pipe way sets up twice valve, evacuation import female line and evacuation import branch pipe way are connected, evacuation import female line sets up evacuation import drainage branch pipe way near the minimum point department of vacuum pump import, the vacuum pump is connected with the female pipe way of evacuation import, evacuation outlet pipe way and vacuum pump connection, evacuation outlet pipe way minimum sets up evacuation outlet drain pipe, set up evacuation outlet drain gate on the evacuation outlet drain pipe, evacuation outlet pipe way is connected to the atmosphere.
Furthermore, the branch vacuum-pumping inlet pipeline is made of glass fiber reinforced plastic, and the branch vacuum-pumping inlet pipeline and the sea-fresh six-effect exhaust pipe are connected in a manner of being wrapped by the glass fiber reinforced plastic.
Furthermore, one side of the branch pipeline of the vacuumizing inlet, which is close to the vacuum pump, is provided with a manual butterfly valve, one side of the branch pipeline of the vacuumizing inlet, which is close to the effect body, is provided with an electric butterfly valve, and the valve and the branch pipeline of the vacuumizing inlet are connected by adopting a glass fiber reinforced plastic flange.
Furthermore, the vacuumizing inlet main pipeline is made of glass fiber reinforced plastic, and the vacuumizing inlet main pipeline and the vacuumizing inlet branch pipeline are connected in a mode of wrapping the glass fiber reinforced plastic.
Furthermore, the vacuumizing inlet drainage branch pipeline is made of glass fiber reinforced plastic, and the vacuumizing inlet main pipeline and the vacuumizing inlet drainage branch pipeline are connected in a mode of wrapping the glass fiber reinforced plastic.
Furthermore, the vacuum pump is connected with the vacuumizing inlet main pipeline in a flange connection mode, wherein the flange close to one side of the vacuumizing inlet main pipeline is made of glass fiber reinforced plastics, and the flange close to one side of the vacuum pump is made of stainless steel 316L.
Further, the vacuum pumping outlet pipeline is connected with a vacuum pump through a flange, and the flange is made of stainless steel 316L.
Furthermore, the vacuumizing outlet drain valve arranged on the vacuumizing outlet drain pipe is a manual ball valve.
The utility model has the advantages that:
1. the technical scheme of the utility model can effectual reduction energy consumption. The existing seawater desalination device adopts auxiliary steam provided by a unit to start vacuumizing maintenance, namely when the shell side of a falling film condenser is vacuumized to 750mmHg, a starting vacuumizing system is started to vacuumize the shell side to below 150mmHg, the starting vacuumizing system adopts auxiliary steam as a power steam source, a temperature reduction water pump provides temperature reduction water, the maintenance is carried out for at least about 2 hours each time, the steam consumption is about 20 tons, and 1400kg of standard coal is needed according to the average coal consumption of one ton of auxiliary steam which is calculated to be about 70 kg; the utility model discloses a low temperature multiple-effect seawater desalination device vacuum maintenance system can effectual reduction energy consumption for maintenance energy consumption approximately accounts for original 5.57% at every turn, and energy consumption approximately 69t standard coals can be practiced thrift to every set of seawater desalination device every year.
2. The vacuum maintenance system of the low-temperature multi-effect seawater desalination device can effectively prevent the pipeline from being frozen and the influence caused by the heating pipe, effectively avoid the problems that the drain pipeline is very easy to freeze, the heating pipe is insufficient and can cause water hammer, the pipeline deforms or even breaks and the like, and improve the stability of equipment.
3. The vacuum maintenance system of the low-temperature multi-effect seawater desalination device is adopted, the noise is low, and the equipment is arranged indoors, so that the noise pollution to the outside is low.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of the present invention.
Wherein: 1. sea fresh water six-effect exhaust pipe, 2, a branch pipeline of a vacuumizing inlet, 3, an electric door of a branch pipeline of a vacuumizing inlet, 4, a manual door of a branch pipeline of a vacuumizing inlet, 5, a female pipeline of a vacuumizing inlet, 6, a branch pipeline of a draining pipeline of a vacuumizing inlet, 7, a draining door of a vacuumizing inlet, 8, a vacuum pump, 9, a pipeline of a vacuumizing outlet, 10, a draining pipe of a vacuumizing outlet, 11 and a draining door of a vacuumizing outlet.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in figure 1, the vacuum maintenance system of the low-temperature multi-effect seawater desalination device comprises a vacuum pump 8, a branch vacuum-pumping inlet pipeline 2, a main vacuum-pumping inlet pipeline 5, a branch vacuum-pumping inlet drainage pipeline 6 and a branch vacuum-pumping outlet pipeline 9, wherein two ends of the branch vacuum-pumping inlet pipeline 2 are respectively connected with a sea-fresh six-effect air suction pipe 1, the sea-fresh six-effect air suction pipe 1 comprises a sea-fresh six-effect air suction pipe I and a sea-fresh six-effect air suction pipe II, the branch vacuum-pumping inlet pipeline 2 is made of glass fiber reinforced plastic, the branch vacuum-pumping inlet pipeline 2 and the sea-fresh six-effect air suction pipe 1 are connected in a way of being wrapped by glass fiber reinforced plastic, the branch vacuum-pumping inlet pipeline 2 is provided with an electric branch vacuum-pumping inlet pipe door 3 and a manual branch vacuum-pumping inlet pipe door 4, the branch vacuum-pumping inlet pipeline 2 is provided with two valves, one side of the branch, one side close to the effect body is an electric butterfly valve, the valve is connected with a vacuumizing inlet branch pipeline 2 through a glass fiber reinforced plastic flange, a vacuumizing inlet main pipeline 5 is connected with a vacuumizing inlet branch pipeline 2, the vacuumizing inlet main pipeline 5 is made of glass fiber reinforced plastic, the vacuumizing inlet main pipeline 5 is connected with the vacuumizing inlet branch pipeline 2 through glass fiber reinforced plastic wrapping, a vacuumizing inlet drainage branch pipeline 6 is arranged at the lowest point of the vacuumizing inlet main pipeline 5 close to the inlet of the vacuum pump, the vacuumizing inlet drainage branch pipeline 6 is made of glass fiber reinforced plastic, the vacuumizing inlet main pipeline 5 is connected with the vacuumizing inlet drainage branch pipeline 6 through glass fiber reinforced plastic wrapping, a vacuumizing inlet drainage gate 7 is arranged on the vacuumizing inlet drainage branch pipeline 6, the vacuum pump 8 is connected with the vacuumizing inlet main pipeline 5, and the vacuum pump 8 is connected with the vacuumizing inlet main pipeline 5 through a flange, wherein the flange material that is close to evacuation import female line 5 one side is the glass steel, and the flange material that is close to vacuum pump 8 one side is stainless steel 316L, evacuation outlet pipe 9 minimum sets up evacuation outlet drain pipe 10, evacuation outlet pipe 9 passes through flange joint with vacuum pump 8, the flange material is stainless steel 316L, set up evacuation outlet drain door 11 on the evacuation outlet drain pipe 10, the evacuation outlet drain door 119 that sets up on the evacuation outlet drain pipe 10 is manual ball valve, evacuation outlet pipe is connected to the atmosphere.
The size of the vacuum pump 8, the branch vacuum pumping inlet pipeline 2, the main vacuum pumping inlet pipeline 5, the branch vacuum pumping inlet drainage pipeline 6, the branch vacuum pumping outlet pipeline 9 and the accessory equipment thereof can be flexibly adjusted according to the field requirement.
The working mode is as follows:
when the vacuumizing system is started in operation, firstly ensuring that the manual door 4 of the vacuumizing inlet branch pipe is in an open state, then starting the vacuum pump 8, and after the vacuumizing inlet branch pipe is operated for 400 seconds, opening the electric door 3 of the vacuumizing inlet branch pipe and the manual door 4 of the vacuumizing inlet branch pipe; and after the vacuum reaches the vacuum maintenance requirement, closing the electric door 3 of the vacuumizing inlet branch pipe, then opening the vacuumizing inlet drainage door 7, after the operation is carried out for 600 seconds, closing the vacuumizing inlet drainage door 7, and stopping the operation of the vacuum pump 8.
The utility model discloses a low temperature multiple-effect sea water desalination device vacuum maintenance system can reduce the energy consumption well, and improve equipment's security and stability reduce the noise pollution to the environment.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (8)
1. A vacuum maintenance system of a low-temperature multi-effect seawater desalination device is characterized by comprising a vacuum pump, a vacuumizing inlet branch pipeline, a vacuumizing inlet main pipeline, a vacuumizing inlet drainage branch pipeline and a vacuumizing outlet pipeline, the branch vacuum-pumping inlet pipeline is connected with a sea-fresh six-effect exhaust pipe, the branch vacuum-pumping inlet pipeline is provided with two valves, the vacuum pumping inlet main pipeline is connected with the vacuum pumping inlet branch pipeline, the vacuum pumping inlet main pipeline is provided with a vacuum pumping inlet drainage branch pipeline at the lowest point close to the vacuum pump inlet, the vacuum pump is connected with a vacuum pumping inlet main pipeline, the vacuum pumping outlet pipeline is connected with the vacuum pump, the lowest point of the vacuumizing outlet pipeline is provided with a vacuumizing outlet drain pipe, a vacuumizing outlet drain door is arranged on the vacuumizing outlet drain pipe, and the vacuumizing outlet pipeline is connected to the atmosphere.
2. The vacuum maintenance system for the low-temperature multi-effect seawater desalination plant as claimed in claim 1, wherein the branch vacuum inlet pipeline is made of glass fiber reinforced plastic, and the branch vacuum inlet pipeline is connected with the sea-fresh six-effect extraction pipe in a manner of being wrapped by glass fiber reinforced plastic.
3. The vacuum maintenance system for the low-temperature multi-effect seawater desalination plant as claimed in claim 1, wherein the side of the branch pipeline of the vacuum inlet close to the vacuum pump is a manual butterfly valve, the side close to the effect body is an electric butterfly valve, and the valve and the branch pipeline of the vacuum inlet are connected by adopting a glass fiber reinforced plastic flange.
4. The vacuum maintenance system for the low-temperature multi-effect seawater desalination plant as claimed in claim 1, wherein the vacuum inlet main pipeline is made of glass fiber reinforced plastic, and the vacuum inlet main pipeline and the vacuum inlet branch pipeline are connected by wrapping the glass fiber reinforced plastic.
5. The vacuum maintenance system for the low-temperature multi-effect seawater desalination plant as claimed in claim 1, wherein the vacuum inlet drainage branch pipeline is made of glass fiber reinforced plastic, and the vacuum inlet main pipeline and the vacuum inlet drainage branch pipeline are connected by wrapping the glass fiber reinforced plastic.
6. The vacuum maintenance system for the low-temperature multi-effect seawater desalination plant as claimed in claim 1, wherein the vacuum pump is connected with the vacuum inlet main pipeline in a flange connection manner, wherein the flange near one side of the vacuum inlet main pipeline is made of glass fiber reinforced plastic, and the flange near one side of the vacuum pump is made of stainless steel 316L.
7. The vacuum maintenance system for the low-temperature multi-effect seawater desalination plant as claimed in claim 1, wherein the evacuation outlet pipeline is connected with the vacuum pump through a flange, and the flange is made of stainless steel 316L.
8. The vacuum maintenance system for the low-temperature multi-effect seawater desalination plant as claimed in claim 1, wherein the evacuation outlet drain door arranged on the evacuation outlet drain pipe is a manual ball valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920454130.0U CN210193448U (en) | 2019-04-04 | 2019-04-04 | Vacuum maintenance system for low-temperature multi-effect seawater desalination device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920454130.0U CN210193448U (en) | 2019-04-04 | 2019-04-04 | Vacuum maintenance system for low-temperature multi-effect seawater desalination device |
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| CN210193448U true CN210193448U (en) | 2020-03-27 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114684883A (en) * | 2022-06-01 | 2022-07-01 | 天津国投津能发电有限公司 | Device and method for improving vacuum degree of low-temperature multi-effect seawater desalination device |
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2019
- 2019-04-04 CN CN201920454130.0U patent/CN210193448U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114684883A (en) * | 2022-06-01 | 2022-07-01 | 天津国投津能发电有限公司 | Device and method for improving vacuum degree of low-temperature multi-effect seawater desalination device |
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