CN108298620B - Spraying baffle of low-temperature multi-effect seawater desalination system - Google Patents
Spraying baffle of low-temperature multi-effect seawater desalination system Download PDFInfo
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- CN108298620B CN108298620B CN201810282778.4A CN201810282778A CN108298620B CN 108298620 B CN108298620 B CN 108298620B CN 201810282778 A CN201810282778 A CN 201810282778A CN 108298620 B CN108298620 B CN 108298620B
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- Prior art keywords
- baffle
- desalination system
- water
- baffle frame
- low
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Classifications
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/043—Details
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/046—Treatment of water, waste water, or sewage by heating by distillation or evaporation under vacuum produced by a barometric column
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/08—Seawater, e.g. for desalination
-
- 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
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The invention discloses a spray baffle of a low-temperature multi-effect sea water desalination system, which comprises an effective body support part, a baffle frame and a plurality of Y-shaped baffles embedded in the baffle frame, wherein the Y-shaped baffles are formed by PVC material modules, the upper part of the baffle frame is connected with the structure of the effective body support part through fixed buckles, sliding rails are arranged on two sides of the baffle frame and are matched with sliding grooves arranged and fixed on the effective body support part, limit pins are arranged on the lower part of the sliding grooves, universal wheels are arranged on the upper part and the lower part of the Y-shaped baffles and are fixed on the baffle frame through the universal wheels, a direction-regulating screw is arranged on the lower part of the Y-shaped baffles, and a water collecting tank is arranged on the lower part of the baffle frame and is led out through a pipeline and connected with a vacuum pipeline pump. The invention aims to provide a low-temperature multi-effect spray baffle plate of a sea water desalination system, which further reduces the 'secondary steam' air resistance of the sea water desalination system in the operation process, lightens the overall weight and is convenient to overhaul and maintain.
Description
Technical Field
The invention relates to the technical field of sea water desalting devices, in particular to a spray baffle of a low-temperature multi-effect sea water desalting system.
Background
The low-temperature multi-effect sea water desalination system is a mainstream technical scheme for sea water desalination and water production at present internationally and domestically. The system generally adopts a mode of 'cogeneration', utilizes the steam of the generator set to heat the seawater, and distills out the desalted water. The system uses the steam extracted from the generator set as a power steam source of the device, and simultaneously performs vacuum pumping to evaporate the seawater at 70 ℃, and the steam in the heat exchange tube is cooled and recovered after heat exchange to obtain fresh water generated by the system.
The upper nozzle of the seawater desalination system sprays seawater to the upper part of the uppermost heat exchange tube uniformly through the water distribution system, and ensures that the heat exchange tube has a certain wettability when exchanging heat with seawater in the tube, thereby avoiding scaling caused by small local spray water quantity. The sprayed seawater flows to the bottom of the effective body bracket part to be recycled to the seawater side after heat exchange through a plurality of heat exchange pipes from top to bottom. Due to the function of the spraying baffle, the utility model can prevent the water quality of the produced water of the seawater desalination system from being influenced by the fact that part of seawater in the normal operation process of seawater spraying splashes to the demister side of the next effective inlet. In the spraying process of the upper spraying pipe, the reasons such as nozzle deflection, spraying pipe fracture, spraying system blockage and the like possibly exist, so that the spraying seawater flow is uneven or splashed to the fresh water side through the seawater side, and the water quality index of produced water is influenced. In the running process of the system, once the problems occur, a large amount of water splashes to the water side of the product, so that the water production electricity is overproof, the water quality of the water supply network is seriously overproof, and the shutdown system is required to be checked and repaired.
In the prior art, though the splash prevention effect can be achieved in the normal operation process, the normal flow of steam in the effect body is affected to a certain extent, the secondary steam generated by the evaporation of the seawater cannot flow to the inlet side of the next effect directly through the baffle plate side, and the secondary steam is required to bypass the baffle plate and then be mixed with other secondary steam, so that the flow resistance of gas is increased intangibly, and the burden of a vacuumizing system is increased. In addition, the baffle is made of anti-corrosion metal materials, so that the self weight of the baffle is large, and the manual operation strength is high in the maintenance process. If abnormal conditions of the spraying system occur, the internal spraying fault position of the effective body support cannot be accurately judged in time, a plurality of manholes are required to be opened for inspection, and the equipment outage time and the processing period are increased.
Disclosure of Invention
Aiming at the problems, the invention aims to provide the low-temperature multi-effect spray baffle of the sea water desalination system, which can further reduce the 'secondary steam' air resistance of the sea water desalination system in the operation process, lighten the whole weight, quickly confirm fault points and facilitate overhaul and maintenance.
The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a low temperature multiple effect sea water desalination sprays baffle, includes that effect body support part, baffle frame and inside embedding of baffle frame "Y" type baffle, "Y" type baffle comprises PVC material module, baffle frame upper portion and effect body support part structure department through fixed buckle connection, baffle frame both sides are equipped with the slide rail, use with the spout cooperation of installing and fixing on effect body support part, the spout lower part is equipped with the spacer pin, the universal wheel is all installed from top to bottom to "Y" type baffle, through the universal wheel is fixed on the baffle frame, steering screw is installed to "Y" type baffle lower part, the baffle frame lower part is equipped with a water catch bowl, the water catch bowl is drawn forth through the pipeline and is connected the vacuum pipeline pump.
Further, the water collecting tank is provided with an overflow weir, and the height of the overflow weir is lower than the bottom of the Y-shaped baffle.
Further, a water hole is designed at the support of the lower part of the Y-shaped baffle, and liquid drops intercepted by the Y-shaped baffle flow downwards under the action of gravity and enter the water collecting tank through the water hole.
Further, a rotameter is connected to the outlet of the vacuum pipeline pump.
Further, the universal wheel is a spherical universal wheel.
The invention has the advantages that:
1. by adopting the light Y-shaped baffle plate, the air resistance of the secondary steam in the running process of the seawater desalination system is further reduced, so that the steam generated by heating the seawater in the effective body bracket part flows into the next effect in time, the system heat exchange effect is avoided being poor due to the fact that a large amount of gas stays in the effective body, the efficiency is reduced due to poor steam fluidity, and the burden of the vacuumizing system is reduced.
2. By adopting the design, the system design has less investment in metal, the whole weight of the device is reduced, convenience is brought to overhaul and maintenance, and the maintenance amount is greatly reduced.
3. The 'buckle' type fixing mode and the hanging type placing mode in the disassembling process are adopted, so that the labor intensity of workers is relieved, the maintenance time is further shortened, the occupied maintenance site is reduced, and the influence caused in the conveying and hoisting processes is avoided.
4. The angle of the baffle module can be adjusted according to the needs, so that the dynamic adjustment of the flow resistance and the spraying amount of the gas in the effective body is realized, and the limited space is utilized to the maximum extent.
5. The baffle module is made of cheap materials, the cost is further reduced, partial damage and dirt can be treated respectively or partially, and the corrosion resistance and the impact resistance are high.
6. The bottom of the baffle plate is provided with a spray water collecting device, and when the system is abnormal in operation, the water quantity of the baffle plate can be subjected to statistical analysis, so that the leakage phenomenon can be judged through the flow quantity of the baffle plate. The device is convenient to overhaul in time, and reduces the time for solving the problems.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a front view of the present invention.
Fig. 3 is a top view of the present invention.
Fig. 4 is an enlarged view of a portion of fig. 3 in accordance with the present invention.
Fig. 5 is a side view of the present invention.
Wherein:
1. baffle frame 2, water collecting tank 3 and buffer water tank
4. Vacuum pipeline pump 5, vacuum pipeline pump outlet valve 6 and rotameter
7. Y-shaped baffle 8, universal wheels 9 and direction-adjusting screw
10. Fixing buckle 11, sliding rail 12 and sliding chute
13. Stop pin 14, vacuum pipeline pump inlet valve 15 and effective body support part
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured 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.
The utility model provides a low temperature multiple effect sea water desalination system sprays baffle as shown in fig. 1, 2, includes effective body support part 15, baffle frame 1 and a plurality of "Y" type baffle 7 of the inside embedding of baffle frame 1, "Y" type baffle 7 comprises PVC material module, baffle frame 1 upper portion and effective body support part 15 structure department are connected through fixed buckle 10, and the installation and dismantlement of being convenient for, baffle frame 1 both sides are equipped with slide rail 11, use with the spout 12 cooperation of installation fixed on effective body support part 15, can slide from top to bottom in spout 12, spout 12 lower part is equipped with spacer pin 13, can be fixed in baffle frame 1 here.
When the spraying pipeline system of the effective body support 15 has overhauling operation, the buckle of the baffle frame 1 can be loosened, the connecting pipeline at the lower part of the baffle frame 1 is disassembled, the baffle frame 1 is slid downwards, the main baffle structure can be suspended in the effective body support 15 through the sliding rail sliding chute system and the limiting pin 13, an effective body is not required to be moved out, and the workload and the overhauling and maintenance time are further reduced.
When the baffle needs to be overhauled, the limiting pin 13 can be taken out, and the baffle frame 1 can be slid out from the lower part. The Y-shaped baffle 7 is in up-and-down contact with the baffle frame 1 through universal wheels 8, and the angle can be adjusted through lower adjusting bolts 9.
By adopting the light Y-shaped baffle 7, the air resistance of the secondary steam in the running process of the seawater desalination system is further reduced, so that the steam generated by heating the seawater in the effect body flows into the next effect in time, the efficiency reduction caused by poor heat exchange effect and poor steam fluidity of the system due to the fact that a large amount of gas stays in the effect body is avoided, and the burden of the vacuumizing system is reduced.
The 'buckle' type fixing mode and the hanging type placing mode in the disassembling process are adopted, so that the labor intensity of workers is relieved, the maintenance time is further shortened, the occupied maintenance site is reduced, and the influence caused in the conveying and hoisting processes is avoided.
The angle of the baffle module can be adjusted according to the requirement, and the flow resistance and the spraying amount of the effective body gas are dynamically adjusted, so that the limited space is utilized to the maximum extent.
As shown in fig. 3 and 4, universal wheels 8 are mounted on the upper and lower sides of the Y-shaped baffle 7, the baffle frame 1 is fixed by the universal wheels 8, a direction adjusting screw 9 is mounted on the lower portion of the Y-shaped baffle 7, and the angle of the Y-shaped baffle 7 can be adjusted by adjusting the extending length of the direction adjusting screw 9. In equipment debugging, the most suitable angle can be determined by experimental different angles of the Y-shaped baffle 7, so that the air resistance is reduced to the maximum extent and the seawater splashing is avoided.
The lower part of the baffle frame 1 shown in fig. 5 is provided with a water collecting tank 2 for collecting the seawater sprayed to the baffle side, and an eduction tube is arranged at the bottom to educe the seawater and is connected with a vacuum pipeline pump 4. The lower support of the Y-shaped baffle 7 is provided with water holes, and the liquid drops intercepted by the Y-shaped baffle 7 flow downwards under the action of gravity and enter the water collecting tank 2 through the water holes. The water collecting tank 2 is designed with an overflow weir, the height of which is lower than the bottom of the Y-shaped baffle 7, and in normal operation, after the water collecting tank 2 is full, seawater overflows back to the inside of the effective body.
When the water quality of the sea water desalination system is abnormal, namely, under the condition of product water pollution, when the spraying system is required to be checked, the flow rate at the position of the rotameter 6 can be observed by opening the inlet valve 14 of the vacuum pipeline pump, starting the vacuum pipeline pump 4 and opening the outlet valve 5 of the vacuum pipeline pump, and the abnormal spraying position can be confirmed according to the water collection amount.
When the index of the water quality of the produced water of the system exceeds the standard, the water quantity of the system can be subjected to statistical analysis, and then the specific position of leakage in the effective body is judged through the flow of the system, so that the system is convenient to overhaul in time, and the time for solving the problem is reduced.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.
Claims (5)
1. The utility model provides a low temperature multiple effect sea water desalination sprays baffle, its characterized in that, including effective body support part, baffle frame and a plurality of "Y" type baffles of the inside embedding of baffle frame, "Y" type baffle comprises PVC material module, baffle frame upper portion and effective body support part structure department are connected through fixed buckle, baffle frame both sides are equipped with the slide rail, use with the spout cooperation of installing and fixing on effective body support part, the spout lower part is equipped with the spacer pin, the universal wheel is all installed from top to bottom to "Y" type baffle, through the universal wheel is fixed on the baffle frame, the steering screw is installed to "Y" type baffle lower part, baffle frame lower part is equipped with a water catch bowl, the water catch bowl is drawn forth through the pipeline and is connected the vacuum pipeline pump.
2. The spray baffle of a low-temperature multi-effect seawater desalination system as claimed in claim 1, wherein the water collecting tank is provided with an overflow weir, and the height of the overflow weir is lower than the bottom of the Y-shaped baffle.
3. The spraying baffle of the low-temperature multi-effect seawater desalination system according to claim 1, wherein water holes are designed at the lower support of the Y-shaped baffle, and liquid drops intercepted by the Y-shaped baffle flow downwards under the action of gravity and enter the water collecting tank through the water holes.
4. The spray baffle of the low-temperature multi-effect seawater desalination system of claim 1, wherein a rotameter is connected to the outlet of the vacuum pipeline pump.
5. The spray baffle of a low temperature multi-effect seawater desalination system of claim 1, wherein the universal wheels are spherical universal wheels.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810282778.4A CN108298620B (en) | 2018-04-02 | 2018-04-02 | Spraying baffle of low-temperature multi-effect seawater desalination system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810282778.4A CN108298620B (en) | 2018-04-02 | 2018-04-02 | Spraying baffle of low-temperature multi-effect seawater desalination system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108298620A CN108298620A (en) | 2018-07-20 |
| CN108298620B true CN108298620B (en) | 2023-09-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810282778.4A Active CN108298620B (en) | 2018-04-02 | 2018-04-02 | Spraying baffle of low-temperature multi-effect seawater desalination system |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4077849A (en) * | 1975-11-03 | 1978-03-07 | Ziehm Jr Kurt F | Desalination apparatus |
| CN102168888A (en) * | 2011-02-25 | 2011-08-31 | 清华大学 | Contact-type advanced recycling system for waste heat of low-temperature flue gas |
| CN102336450A (en) * | 2011-08-10 | 2012-02-01 | 国家海洋局天津海水淡化与综合利用研究所 | Seawater distillation desalting device utilizing residual heat of diesel engine and desalting method |
| CN202962261U (en) * | 2012-10-31 | 2013-06-05 | 浙江天蓝环保技术股份有限公司 | Y-shaped absorption plate tower |
| CN206185108U (en) * | 2016-08-31 | 2017-05-24 | 中冶赛迪工程技术股份有限公司 | Square billet secondary cooling spray set |
| CN208292692U (en) * | 2018-04-02 | 2018-12-28 | 天津国投津能发电有限公司 | A kind of low temperature multi-effect seawater desalting system spray baffle |
-
2018
- 2018-04-02 CN CN201810282778.4A patent/CN108298620B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4077849A (en) * | 1975-11-03 | 1978-03-07 | Ziehm Jr Kurt F | Desalination apparatus |
| CN102168888A (en) * | 2011-02-25 | 2011-08-31 | 清华大学 | Contact-type advanced recycling system for waste heat of low-temperature flue gas |
| CN102336450A (en) * | 2011-08-10 | 2012-02-01 | 国家海洋局天津海水淡化与综合利用研究所 | Seawater distillation desalting device utilizing residual heat of diesel engine and desalting method |
| CN202962261U (en) * | 2012-10-31 | 2013-06-05 | 浙江天蓝环保技术股份有限公司 | Y-shaped absorption plate tower |
| CN206185108U (en) * | 2016-08-31 | 2017-05-24 | 中冶赛迪工程技术股份有限公司 | Square billet secondary cooling spray set |
| CN208292692U (en) * | 2018-04-02 | 2018-12-28 | 天津国投津能发电有限公司 | A kind of low temperature multi-effect seawater desalting system spray baffle |
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| Publication number | Publication date |
|---|---|
| CN108298620A (en) | 2018-07-20 |
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