CN206720784U - A kind of novel seawater desalting device - Google Patents
A kind of novel seawater desalting device Download PDFInfo
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- CN206720784U CN206720784U CN201720390667.6U CN201720390667U CN206720784U CN 206720784 U CN206720784 U CN 206720784U CN 201720390667 U CN201720390667 U CN 201720390667U CN 206720784 U CN206720784 U CN 206720784U
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- middle plate
- seawater
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- 239000013535 sea water Substances 0.000 title claims abstract description 107
- 238000011033 desalting Methods 0.000 title abstract 2
- 238000001704 evaporation Methods 0.000 claims abstract description 68
- 238000009833 condensation Methods 0.000 claims abstract description 43
- 230000005494 condensation Effects 0.000 claims abstract description 42
- 239000013505 freshwater Substances 0.000 claims abstract description 39
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 165
- 238000007789 sealing Methods 0.000 claims description 97
- 230000008020 evaporation Effects 0.000 claims description 67
- 238000010612 desalination reaction Methods 0.000 claims description 25
- 238000000926 separation method Methods 0.000 claims description 25
- 239000012267 brine Substances 0.000 claims description 13
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 claims description 13
- 238000004891 communication Methods 0.000 claims description 9
- 238000003825 pressing Methods 0.000 claims description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 2
- 229910052802 copper Inorganic materials 0.000 abstract description 2
- 239000010949 copper Substances 0.000 abstract description 2
- 238000004140 cleaning Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 14
- 239000007789 gas Substances 0.000 description 8
- 150000003839 salts Chemical class 0.000 description 5
- 238000004821 distillation Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000005484 gravity Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 239000002918 waste heat Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
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
- C02F1/16—Treatment of water, waste water, or sewage by heating by distillation or evaporation using waste heat from other processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/0011—Heating features
- B01D1/0041—Use of fluids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/0011—Heating features
- B01D1/0058—Use of waste energy from other processes or sources, e.g. combustion gas
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
It the utility model is related to a kind of novel seawater desalting device, heat exchange plate is divided into starting sheet, terminates plate and intermediate plate A, intermediate plate B, each plate general structure is identical, starting sheet and end plate are located at both ends respectively, intermediate plate A, intermediate plate B are positioned at centre, and arrange alternately, in pairs, it is fixed and clamped between all plates by screw rod and nut, the confined space needed for desalinization is formed between plate.The utility model has the advantage of：The gap region as evaporative condenser, heat exchange efficiency height, and the plate cleaning easy to disassemble successively being divided into by plate, prevents heat exchanger can not normal use because of fouling etc.；Hydrothermal area is relative with evaporating area, preferably realizes the exchange of heat；With condensing zone, possess the ability of condensation fresh water, be fresh water from heat exchanger outflow, without other equipment；The copper shell of Conventional plate-type fresh water generator can be saved, space has been saved, reduced cost.
Description
Technical Field
The utility model relates to a heat exchanger field for medium distillation, in particular to a novel plate-type seawater desalination device.
Background
Seawater desalination is an effective way for ensuring the continuous and stable supply and supplement of fresh water in ships and ocean engineering. The distillation method seawater desalination technology has been developed greatly because of the advantages that the waste heat of the marine main engine can be used as a heat source, the seawater inlet does not need special treatment, the produced water quality is high, the maintenance is easy, and the like.
The invention patent with the patent number of 201510621244.6 discloses a plate heat exchanger, which comprises a front end plate, a rear end plate and plate sheets arranged between the front end plate and the rear end plate and parallel to the front end plate, wherein sealing rings are arranged on two sides of each plate sheet, the same sealing rings on one side of the adjacent plate sheets are matched to form a seawater cavity and a steam cavity, and the same sealing rings on the other side of the adjacent plate sheets are matched to form a seawater evaporation cavity; steam gets into the evaporation cavity in the evaporation process, and the sea water gets into the sea water cavity, and the sea water that increases gradually flows into the sea water evaporation cavity again, and the both sides of every sea water evaporation cavity are the steam cavity, can effectively evaporate the sea water of sea water evaporation intracavity, and the opening that the sea water evaporation produced flows to condensing equipment through on the sealing washer, leads to fresh water collection device through condensing equipment. The above patent mentions an equipment for preparing fresh water by seawater evaporation, adopts a plate structure, improves the efficiency of seawater evaporation, but the equipment does not contain a condensing device, so fresh water cannot be directly prepared, and the seawater area and the steam area on both sides are not completely combined, and the efficiency still needs to be improved.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a combine evaporation, condensation in high-efficient novel board-like sea water desalination device of an organic whole.
In order to solve the technical problem, the utility model adopts the technical scheme that: the utility model provides a novel sea water desalination device, its innovation point lies in: the device comprises a device body, wherein a plurality of plates are overlapped in a face-to-face buckling manner, the start end and the tail end of each plate are tightly pressed by a pressing plate, a closed space is formed between every two adjacent plates, and the closed space comprises first plate-to-plate gaps and second plate-to-plate gaps which are alternately arranged;
the plate comprises an initial plate, a plurality of middle plates A, a plurality of middle plates B and a finishing plate, wherein the front surface of the initial plate faces the outer side of the device body, and the back surface of the initial plate is attached to the front surface of the middle plate A to form a first plate gap; the middle plates A and the middle plates B are arranged in an alternating mode, wherein the back surfaces of the middle plates A are attached to the front surfaces of the middle plates B to form second plate gaps; the back surface of the middle plate B is attached to the front surface of the middle plate A to form a first plate gap; the front surface of the end plate is attached to the back surface of the middle plate B to form a first plate gap;
the first inter-plate gap comprises an upper cold water area and a lower hot water area which are independent and sealed; the second inter-plate gap sequentially comprises a condensation area, a separation area and an evaporation area which are communicated with each other from top to bottom, the cold water area is opposite to the condensation area, and the hot water area is opposite to the evaporation area.
Furthermore, channels for medium to flow are arranged between the plates,
cold water inlet holes and cold water outlet holes are formed in the starting plate, the middle plate A and the middle plate B, and the cold water inlet holes and the cold water outlet holes are located in an area surrounded by a cold water area on the plate; a circle of small sealing rings are arranged on the front surface of the middle plate B around the cold water inlet and outlet holes to form a cold water circulating channel communicated with the cold water area but not communicated with the condensation area;
hot water inlet holes and hot water outlet holes are formed in the starting plate, the middle plate A and the middle plate B and are positioned in an area surrounded by a hot water area on the plate; the front surface of the middle plate A is provided with a circle of small sealing rings around the hot water inlet and outlet holes to form a hot water circulating channel communicated with the hot water area but not communicated with the evaporation area;
the starting plate, the middle plate A and the middle plate B are provided with seawater inlet holes, the seawater inlet holes are positioned in the area surrounded by the hot water area on the plate, the front surface of the middle plate B is provided with a circle of small sealing rings around the seawater inlet holes, and a seawater channel communicated with the evaporation area but not communicated with the hot water area is formed;
the starting plate, the middle plate A and the middle plate B are provided with fresh water output holes positioned at the bottom of the condensation area, the fresh water output holes are positioned in the area surrounded by the condensation area, the front surface of the middle plate A is provided with a circle of small sealing rings around the fresh water output holes, and a fresh water output channel communicated with the second plate-to-plate gap condensation area but not communicated with the first plate-to-plate gap is formed;
the medium in the cold water circulation channel is cold seawater, and the medium in the hot water circulation channel is cylinder liner water.
Furthermore, the seawater inlet holes are symmetrically arranged in a pair, the seawater inlet holes are symmetrically arranged on the middle plate A and the middle plate B and correspond to two sides of the bottom of the evaporation area, the front surface of the middle plate B is provided with a small opening sealing ring around the seawater inlet holes, and the small opening sealing ring is provided with an opening facing the center of the evaporation area.
Furthermore, the channel also comprises a strong brine channel positioned below the evaporation area and the hot water area, and the strong brine channel is formed by overlapping the strong brine holes positioned at the corresponding positions at the bottom of each plate.
Further, the front surface of the middle plate A is provided with a first sealing ring group, and the first sealing ring group comprises a first main sealing ring used for surrounding and forming a first plate-to-plate gap, a large sealing ring A arranged in a region surrounded by the first main sealing ring and used for surrounding and forming a cold water region, and a large sealing ring B used for surrounding and forming a hot water region;
the front surface of the middle plate B is provided with a second sealing ring group, the second sealing ring group comprises a second main sealing ring for surrounding and forming a gap between the second plates, and a sealing strip A and a sealing strip B which are arranged in an area surrounded by the second main sealing ring and used for dividing a condensation area, a separation area and an evaporation area, the evaporation area is a space with an opening at the upper end formed by surrounding the sealing strip A, and the separation area and the condensation area are sequentially arranged above the evaporation area and are separated by the sealing strip B above the opening of the evaporation area.
Furthermore, the sealing strip B is in a strip shape which is symmetrically inclined downwards from two ends to the middle part and forms a low-lying strip in the middle.
Furthermore, two sides of each plate corresponding to the separation area are provided with guide corrugations, the guide corrugations on the two sides extend from the middle position of the separation area to the outer side and obliquely downwards, and the extending direction of the guide corrugations is not in contact with the evaporation area.
Further, gas communication holes are formed in the middle plate A and the middle plate B and are located in the closed space and located outside the surrounding area of the hot water area and the cold water area.
The utility model has the advantages that:
(1) the plate and the sealing ring (strip) form a closed space required by seawater desalination, and a shell is not required to be added, so that materials and space are saved.
(2) The gaps formed by the plates provide space for seawater desalination, the heat exchange efficiency is high, the plates are convenient to disassemble and clean, and the heat exchanger can be prevented from being used normally due to scaling and the like; the hot water area is opposite to the evaporation area, so that the heat exchange is better realized; the heat exchanger has a condensation area, has the capacity of condensing fresh water, and flows out of the heat exchanger as fresh water without other equipment.
(3) The heat exchanger is also internally provided with a cold water circulation channel, a hot water circulation channel, a seawater circulation channel and a fresh water output channel, and various media fully flow in the heat exchanger to realize heat exchange, wherein the medium in the cold water circulation channel is cold seawater, the medium in the hot water circulation channel is cylinder liner water, the waste heat of the cylinder liner water on the ship is fully utilized, and resources are saved.
(4) The functional areas on the plates are surrounded by the sealing rings, wherein the main sealing rings surround the plate gaps, the sealing rings isolate the functional areas on the gaps between the same plates from each other, and the functional areas are tightly separated and are convenient to disassemble and assemble; only one side of each plate is provided with a sealing ring, so that the processing is convenient.
(5) Set up the punch combination as the passageway on the slab, need not to independently set up the pipeline as the medium passageway, make things convenient for the medium to flow, reduce the consumptive material, the passageway adopts the sealing washer to seal in the interplate clearance that does not communicate, replaces traditional pipeline.
(6) The strong brine channel leads the seawater with higher salinity after the evaporation of the fresh water out of the heat exchanger, so that the salt is prevented from being accumulated in the heat exchanger, the blockage is caused, and the production efficiency is reduced.
(7) The sealing strip B has the function of separating the separation area and the condensation area in the gap between the plates, and the structure of the sealing strip B can just lead the fresh water condensed in the condensation area to gather to the middle low-lying area and finally flow into the fresh water output channel.
(8) The effect of direction ripple is the salinity of separation sea water in the sea water evaporation process to make the sea water that contains salt more flow in the strong brine passageway of bottom along with the direction ripple, finally flow out.
Drawings
Fig. 1 is a schematic side view of a preferred embodiment of the novel seawater desalination plant of the present invention.
Fig. 2 is a schematic front view of an intermediate plate a according to the preferred embodiment of the present invention.
Fig. 3 is a schematic front view of a middle plate B of a preferred embodiment of the novel seawater desalination apparatus of the present invention.
Fig. 4 is a front schematic view of a starting plate of a preferred embodiment of the novel seawater desalination apparatus of the present invention.
Fig. 5 is a front schematic view of an end plate of a preferred embodiment of the novel seawater desalination device of the present invention.
Fig. 6 is a working schematic diagram of the preferred embodiment of the novel seawater desalination device of the present invention.
In the figure:
1-intermediate plate a, 11-main sealing ring a, 12-sealing ring B,
13-sealing rings A, 14-small sealing rings, 15-small opening sealing rings,
2-middle plate B, 21-main sealing ring B, 22-sealing strip B,
23-sealing strip A, 3-starting plate, 4-finishing plate,
5-a pressure plate, 6-a bolt, 7-a through rod,
8-second plate gap, 9-first plate gap, 10-cold water inlet hole,
20-cold water outlet hole, 30-fresh water output hole, 40-gas communication hole,
50-hot water inlet hole, 60-hot water outlet hole, 70-seawater inlet hole,
80-strong brine hole, 90-guide ripple; the L-cold water area is provided with a water inlet,
an R-hot water zone, a C-condensation zone, an S-separation zone,
e-an evaporation zone.
Detailed Description
As shown in fig. 1, the utility model discloses a novel sea water desalination device, including the device body, form with the mode stack of face-to-face lock by a plurality of slabs, compress tightly with pressure strip 5 at first, last both ends again, form airtight space between the adjacent slab, airtight space includes first inter-plate clearance 9 and the second inter-plate clearance 8 that sets up in turn, and the slab includes:
the starting plate 3 is positioned at the starting end of the device body, is provided with a front surface and a back surface, the front surface faces the outer side of the device body and is tightly pressed with the starting end pressing plate, and the back surface faces the inner part of the device body and is used for forming a first plate gap;
a binding plate 4, located at the end of the device body, having a front surface and a back surface, wherein the front surface faces the outside of the device body to form a heat exchanger terminal surface, and the back surface faces the inside of the device body to form a first plate gap;
a plurality of intermediate plates a1 disposed between the start plate 3 and the end plate 4 and having a front surface for forming a first inter-plate gap and a back surface for forming a second inter-plate gap;
a plurality of intermediate plates B2 arranged between the starting plate 3 and the ending plate 4 and arranged alternately with the intermediate plates A1, wherein the intermediate plates B2 have a front surface and a back surface, the front surface is buckled with the back surface of the intermediate plate A to form a first plate-to-plate gap, and the back surface is buckled with the front surface of the intermediate plate A to form a second plate-to-plate gap;
the starting plate 3 and the ending plate 4 are respectively positioned at two ends, and the middle plate A1 and the middle plate B2 are positioned in the middle and are arranged in an alternating and paired manner; the back surface of the starting plate 3 is buckled with the front surface of the first middle plate A1 to form a first inter-plate gap, the front surface of the finishing plate 4 is buckled with the back surface of the last middle plate B2 to form a last first inter-plate gap, and all the plates are tightly installed in parallel, so that a closed space required by seawater desalination can be formed, a copper shell of a traditional plate type water making machine can be omitted, the space is saved, and the cost is reduced.
The closed space is divided into a plurality of functional areas by rubber pads; wherein,
the first inter-plate gap comprises an upper cold water area L and a lower hot water area R which are sealed independently, and is formed by separating a first sealing ring group on the front surface of the middle plate a1, as shown in fig. 2, the first sealing ring group comprises a main sealing ring a11 for surrounding and forming the first inter-plate gap, a large sealing ring a13 which is arranged in the area surrounded by the main sealing ring a11 and is used for surrounding and forming the cold water area L, and a large sealing ring B12 for surrounding and forming the hot water area B;
the second inter-plate gap sequentially comprises a condensation area C, a separation area S and an evaporation area E which are communicated with each other from top to bottom, and the second inter-plate gap is formed by separating a second sealing ring group on the front surface of the middle plate B2, as shown in fig. 3, the second sealing ring group comprises a main sealing ring B21 used for surrounding and forming the second inter-plate gap, and a sealing strip a23 and a sealing strip B22 which are arranged in an area surrounded by the main sealing ring B21 and used for dividing the condensation area C, the separation area S and the evaporation area E, the evaporation area E is a space with an opening at the upper end formed by surrounding of the sealing strip a23, the separation area S and the condensation area C are sequentially arranged above the evaporation area E and are separated by the sealing strip B;
wherein, both sides of each plate are provided with symmetrical guide ripples 90, the guide ripples 90 at both sides extend from the middle position of the separation area to the outer oblique lower side, and the extending direction is not contacted with the evaporation area E, so that steam carrying salt is settled in the evaporation process and flows out of the evaporation area E along with the guide ripples;
in the first plate-to-plate gap and the second plate-to-plate gap, the cold water region L is opposite to the region surrounded by the condensation region C and is positioned at the same position of two sides of any middle plate, and the hot water region R is opposite to the region surrounded by the evaporation region E and is positioned at the same position of two sides of any middle plate.
The seawater can boil when reaching a certain temperature and generate water vapor, and the seawater desalination by the distillation method just utilizes the physical phenomenon to realize the seawater desalination. The hot water area R is internally provided with a high-temperature heat exchange medium, the evaporation area E is internally provided with seawater to be evaporated, the high-temperature heat exchange medium and the seawater to be evaporated are separated by only one plate, so that better heat transfer can be realized, the cold water area L is provided with a low-temperature heat exchange medium, the cold water area L is separated by only one plate from the condensation area C, and similarly, the two areas can realize better heat transfer; under the effect of the high-temperature heat exchange medium in the hot water region R, seawater in the evaporation region E can be boiled at a certain temperature to generate steam, the steam passes through the separation region S and rises to the condensation region C, the low-temperature heat exchange medium is arranged in the cold water region L and is opposite to the condensation region C at an interval, and the steam is condensed under the effect of the low-temperature medium, so that fresh water can be formed.
As shown in figures 2-5, because the device body is formed by mutually overlapping a plurality of plates, in order to facilitate the circulation of media in each functional area, the plates are also provided with channels for the media to flow, and the device comprises
The cold water circulating channel consists of a cold water inlet channel and a cold water outlet channel, and the cold water inlet channel and the cold water outlet channel are communicated with the cold water region L, penetrate through the condensation region C and are not communicated with the condensation region C; the concrete structure is as follows: cold water inlet holes 10 and cold water outlet holes 20 are formed in the starting plate 3, the middle plate A1 and the middle plate B2, the cold water inlet holes 10 and the cold water outlet holes 20 are located in the area surrounded by the cold water area L on the plate pieces, and the cold water inlet holes 10 and the cold water outlet holes 20 on the adjacent front and rear plate pieces are mutually overlapped to respectively preliminarily form cold water inlet and outlet channels; the front surface of the middle plate B2 is respectively provided with a circle of small sealing rings 14 around the cold water inlet hole 10 and the cold water outlet hole 20 to form a complete cold water circulating channel which is communicated with the cold water area L but not communicated with the condensation area C;
the hot water circulating channel consists of a hot water inlet channel and a hot water outlet channel, and the hot water inlet channel and the hot water outlet channel are communicated with the hot water region R, pass through the evaporation region E and are not communicated with the evaporation region E; the concrete structure is as follows: the starting plate 3, the middle plate A1 and the middle plate B2 are provided with hot water inlet holes 50 and hot water outlet holes 60, and the hot water inlet holes 50 and the hot water outlet holes 60 are positioned in an area surrounded by a hot water area R on the plate; the hot water inlet and outlet holes 50 and 60 on the adjacent front and rear plates are mutually overlapped to respectively form a hot water inlet channel and a hot water outlet channel at initial step; the front surface of the middle plate A1 is respectively provided with a circle of small sealing rings 14 around the hot water inlet and outlet holes 50 and 60 to form a complete hot water circulation channel which is communicated with the hot water area R but not communicated with the evaporation area E;
the seawater channel is communicated with the evaporation zone E, passes through the hot water zone R and is not communicated with the hot water zone R; the concrete structure is as follows: the starting plate 3, the middle plate A1 and the middle plate B2 are provided with seawater inlet holes 70, the seawater inlet holes 70 are positioned in the area surrounded by the hot water area R on the plate pieces, the seawater inlet holes 70 on the adjacent front and rear plate pieces are mutually overlapped to preliminarily form a seawater channel, the front surface of the middle plate A1 is provided with a circle of small sealing rings 14 around the seawater inlet holes 70 to form a complete seawater channel communicated with the evaporation area E but not communicated with the hot water area R; it should be noted that the seawater inlet holes 70 are symmetrically arranged in a pair, the seawater inlet holes 70 are symmetrically arranged on the middle plate a1 and the middle plate B2 at positions corresponding to two sides of the bottom of the evaporation area E, so that the seawater can be conveniently diffused from two sides of the bottom to the middle upper part, the small opening sealing ring 15 is arranged on the front surface of the middle plate B2 surrounding the seawater inlet holes 70, the small opening sealing ring 15 is provided with an opening facing the center of the evaporation area, the small opening sealing ring has a guiding function on the inflowing medium, and the medium is favorable for flowing to the center.
Fresh water output channel is located condensation zone C bottom, only communicates with condensation zone C, and concrete structure is: fresh water output holes 30 are formed in the starting plate 3, the middle plate A1 and the middle plate B2, the fresh water output holes 30 are located in an area surrounded by the condensation area C, the condensation area C is isolated by the sealing strip B22, the condensation area C is located above the sealing strip B23, the sealing strip B22 is in a strip shape which is symmetrically inclined downwards from two ends to the middle and forms a low-lying zone in the middle, the fresh water output holes 30 are located at the corresponding positions of the low-lying zone, and fresh water drained by the sealing strip B can completely flow into the fresh water output holes 30; the fresh water output holes 30 on the adjacent front and rear plate sheets are mutually overlapped to form a fresh water output channel preliminarily, the front surface of the middle plate A1 is provided with a circle of small sealing rings 14 around the fresh water output holes 30, and finally a complete fresh water output channel communicated with the second plate-to-plate gap condensation area but not communicated with the first plate-to-plate gap is formed.
The medium in the cold water circulation channel is cold seawater, the medium in the hot water circulation channel is cylinder liner water, and the cylinder liner water on other equipment is utilized for preheating, so that energy is saved, and cost is reduced.
Because the sea water evaporation can separate out the strong brine, so the passageway still includes the strong brine passageway that is located evaporation zone and hot water district below, superposes from beginning to end by the strong brine hole 80 that is located the corresponding position in every plate bottom, and the sea water of being convenient for smuggleing a large amount of salt content is separated and is flowed in the evaporation process.
In addition to the above medium flow holes, the intermediate plate a1 and the intermediate plate B2 are further provided with gas communication holes 40, the gas communication holes 40 are located in the region surrounded by any intermediate plate main seal ring and located outside the regions surrounded by the hot water region R and the cold water region L, so that water vapor can be freely dispersed and absorbed and condensed in gaps between the intermediate plates, and the vacuum pump can be used for manufacturing the internal vacuum of the heat exchanger, reducing the boiling point of seawater and improving the production efficiency, specifically, the gas communication holes 40 are arranged in the regions of the separation regions S and the two sides of the regions C of the intermediate plates a1 and B2 and are also arranged on the two sides of the regions surrounded by the cold water regions L of the intermediate plates a1 and B2.
The plate sheets of the device body are positioned by the through rod 7, so that the front and the back are correspondingly superposed, two ends are pressed by the pressing plate 5, and the pressing plate 5 is connected and fixed by the bolt 6, so that the device body is pressed; the front pressing plate 5 is buckled with the front surface of the starting plate 3, as shown in fig. 4, the medium holes on the starting plate 3 are completely consistent with the middle plate A1, and a circle of small sealing ring 14 is arranged around each medium hole on the front surface of the starting plate, so that when a medium enters and exits the device body, the sealing performance is good and no leakage exists; the back end pressing plate 5 is buckled with the back surface of the end plate 4, no gap is left between the two, as shown in fig. 5, no medium hole is formed on the end plate 4, and the front surface of the end plate is provided with a rubber pad which is the same as the middle plate A1, so that the final gap between the first plates is conveniently formed.
When the heat exchanger works, as the plates of the device body are mutually communicated through the gas communication hole 90, the pressure can be firstly reduced by utilizing a vacuum pump, so that the evaporation temperature of seawater is reduced;
as shown in fig. 6, firstly, in the evaporation process, cylinder liner water of the main engine continuously enters from a hot water inlet hole 50, because no small sealing ring 14 is arranged around the hot water inlet hole 50 of the middle plate a1, the cylinder liner water is diffused to an evaporation area E of the middle plate a1 and continuously moves forwards, because the small sealing rings 14 are arranged around the hot water inlet hole 50 and the hot water outlet hole 60 of the middle plate B2, the cylinder liner water only flows through the evaporation area E and then is diffused to a hot water area R of the next group of middle plates a1, and alternately circulates to the end plate 4, and finally, similarly, a hot water outlet channel composed of the hot water outlet holes 60 flows out; the seawater which is still to be evaporated and continuously enters the heat exchanger together with the cylinder liner water continuously enters from the seawater inlet hole 70, the seawater only flows through the hot water region R and simultaneously flows into the gap between the second plates because the small sealing ring 14 is arranged at the position of the seawater inlet hole 70 on the middle plate A1, the seawater only flows through the small opening sealing ring 15 is arranged around the seawater inlet hole 70 on the middle plate B2, the seawater is diffused to the evaporation region E of the middle plate B2 along with the opening of the small opening sealing ring 15, and simultaneously the seawater continuously flows forwards, and the process is circulated until the plates are bundled. In the process, the intermediate plates A1 and the intermediate plates B2 are alternately arranged, the heat of the cylinder liner water is transferred to the seawater through the plates, and the seawater is gradually heated to the evaporation temperature under the pressure, further becomes water vapor and rises to the separation area S.
And (3) a separation process: the seawater is heated and changed into water vapor, the water vapor is lifted to the separation area S, salt is carried in the water vapor, part of water vapor can drop and separate due to the action of gravity in the lifting process, and the strong brine bypasses the evaporation area E under the action of the guide corrugations 90 of the separation area S, flows down from two sides of the evaporation area E and is discharged to the outside through the strong brine holes 80; meanwhile, because the amount of vapor in this region is large, part of the vapor is uniformly dispersed into other plate gaps along with the gas communication holes 90 at that position.
And (3) condensation process: because the left side and the right side of the condensation area C formed by the sealing strips B13 are not closed, the steam passing through the separation area S enters the condensation area C; cold sea water is contained in a cold water area L separated from one plate of the condensation area C, the cold sea water continuously enters the device body from a cold water inlet hole 10, the small sealing ring 14 is not arranged around the cold water inlet hole 10 of the middle plate A1, the cold sea water is diffused to the cold water area and simultaneously flows into a gap between the second plates, the small sealing ring 14 is arranged around the cold water inlet hole 10 of the middle plate B2, the cold sea water only flows through the cold water inlet hole 10 of the middle plate B2 without being diffused and continuously diffuses towards the next cold water area L, and the steps are repeated until the plate 4 is bundled and similarly flows out through a cold water outlet channel formed by cold water outlet holes 20. In the process, cold seawater exchanges heat with water vapor through the plates, the water vapor is condensed into fresh water, the fresh water flows to the fresh water output hole 30 under the action of gravity, and then the fresh water directly enters the fresh water bin through the fresh water output hole 30. The seawater discharged from the cold water outlet hole 20 is partially discharged to the outside directly, and partially flows to the seawater inlet hole 70 to be used as the seawater to be evaporated, the steam liquefaction process preheats the cold seawater, the temperature of the seawater is increased, and the seawater is beneficial to the seawater to be heated to be evaporated.
Supplementary explanation: the plate is provided with herringbone corrugations in the condensation area C and the evaporation area E, so that on one hand, liquid or gas flowing through two sides can be promoted to form turbulent flow, the heat exchange is more sufficient, and the heat exchange efficiency is improved; on the other hand, the steel plate rigidity can be improved. The plate separation area S is provided with inclined guide corrugations 90 in the horizontal direction, so that liquid drops in the water vapor are easy to attach and separate in the rising process of the water vapor, and a practical filter screen in the traditional plate type water making machine is omitted; and simultaneously, the rigidity of the plate is enhanced.
The foregoing shows and describes the general principles and features of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. A novel sea water desalination device is characterized in that: the device comprises a device body, wherein a plurality of plates are overlapped in a face-to-face buckling manner, the start end and the tail end of each plate are tightly pressed by a pressing plate, a closed space is formed between every two adjacent plates, and the closed space comprises first plate-to-plate gaps and second plate-to-plate gaps which are alternately arranged;
the plate comprises an initial plate, a plurality of middle plates A, a plurality of middle plates B and a finishing plate, wherein the front surface of the initial plate faces the outer side of the device body, and the back surface of the initial plate is attached to the front surface of the middle plate A to form a first plate gap; the middle plates A and the middle plates B are arranged in an alternating mode, wherein the back surfaces of the middle plates A are attached to the front surfaces of the middle plates B to form second plate gaps; the back surface of the middle plate B is attached to the front surface of the middle plate A to form a first plate gap; the front surface of the end plate is attached to the back surface of the middle plate B to form a first plate gap;
the first inter-plate gap comprises an upper cold water area and a lower hot water area which are independent and sealed; the second inter-plate gap sequentially comprises a condensation area, a separation area and an evaporation area which are communicated with each other from top to bottom, the cold water area is opposite to the condensation area, and the hot water area is opposite to the evaporation area.
2. The novel seawater desalination device of claim 1, which is characterized in that: the plates are also provided with channels for medium to flow between,
cold water inlet holes and cold water outlet holes are formed in the starting plate, the middle plate A and the middle plate B, and the cold water inlet holes and the cold water outlet holes are located in an area surrounded by a cold water area on the plate; a circle of small sealing rings are arranged on the front surface of the middle plate B around the cold water inlet and outlet holes to form a cold water circulating channel communicated with the cold water area but not communicated with the condensation area;
hot water inlet holes and hot water outlet holes are formed in the starting plate, the middle plate A and the middle plate B and are positioned in an area surrounded by a hot water area on the plate; the front surface of the middle plate A is provided with a circle of small sealing rings around the hot water inlet and outlet holes to form a hot water circulating channel communicated with the hot water area but not communicated with the evaporation area;
the starting plate, the middle plate A and the middle plate B are provided with seawater inlet holes, the seawater inlet holes are positioned in the area surrounded by the hot water area on the plate, the front surface of the middle plate B is provided with a circle of small sealing rings around the seawater inlet holes, and a seawater channel communicated with the evaporation area but not communicated with the hot water area is formed;
the starting plate, the middle plate A and the middle plate B are provided with fresh water output holes positioned at the bottom of the condensation area, the fresh water output holes are positioned in the area surrounded by the condensation area, the front surface of the middle plate A is provided with a circle of small sealing rings around the fresh water output holes, and a fresh water output channel communicated with the second plate-to-plate gap condensation area but not communicated with the first plate-to-plate gap is formed;
the medium in the cold water circulation channel is cold seawater, and the medium in the hot water circulation channel is cylinder liner water.
3. The novel seawater desalination device of claim 2, wherein: the seawater inlet holes are symmetrically arranged in a pair, the seawater inlet holes are symmetrically arranged on the middle plate A and the middle plate B and correspond to two sides of the bottom of the evaporation area, the front surface of the middle plate B is provided with a small opening sealing ring around the seawater inlet holes, and the small opening sealing ring is provided with an opening facing the center of the evaporation area.
4. The novel seawater desalination device of claim 2, wherein: the channel also comprises a strong brine channel positioned below the evaporation area and the hot water area, and is formed by superposing strong brine holes positioned at corresponding positions at the bottom of each plate in front and back.
5. The novel seawater desalination device of claim 1, which is characterized in that:
the front surface of the middle plate A is provided with a first sealing ring group, and the first sealing ring group comprises a first main sealing ring used for surrounding and forming a first plate-to-plate gap, a large sealing ring A arranged in a region surrounded by the first main sealing ring and used for surrounding and forming a cold water region, and a large sealing ring B used for surrounding and forming a hot water region;
the front surface of the middle plate B is provided with a second sealing ring group, the second sealing ring group comprises a second main sealing ring for surrounding and forming a gap between the second plates, and a sealing strip A and a sealing strip B which are arranged in an area surrounded by the second main sealing ring and used for dividing a condensation area, a separation area and an evaporation area, the evaporation area is a space with an opening at the upper end formed by surrounding the sealing strip A, and the separation area and the condensation area are sequentially arranged above the evaporation area and are separated by the sealing strip B above the opening of the evaporation area.
6. The novel seawater desalination device of claim 5, wherein: the sealing strip B is in a strip shape which is symmetrically inclined downwards from two ends to the middle part and forms a low-lying zone in the middle.
7. The novel seawater desalination device of claim 1, which is characterized in that: the two sides of each plate corresponding to the separation area are provided with guide ripples, the guide ripples at the two sides extend from the middle position of the separation area to the outer oblique lower side, and the extending direction of the guide ripples is not contacted with the evaporation area.
8. The novel seawater desalination device of claim 1, which is characterized in that: and the middle plate A and the middle plate B are also provided with gas communication holes, and the gas communication holes are positioned in the closed space and are positioned outside the surrounded areas of the hot water area and the cold water area.
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| CN201710087086X | 2017-02-17 | ||
| CN201710087086 | 2017-02-17 |
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| CN201720390667.6U Expired - Fee Related CN206720784U (en) | 2017-02-17 | 2017-04-14 | A kind of novel seawater desalting device |
| CN201710243486.5A Pending CN106830151A (en) | 2017-02-17 | 2017-04-14 | A kind of novel seawater desalting device |
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| CN201710243486.5A Pending CN106830151A (en) | 2017-02-17 | 2017-04-14 | A kind of novel seawater desalting device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112166293A (en) * | 2018-06-07 | 2021-01-01 | 阿法拉伐股份有限公司 | Plate heat exchanger, heat exchanger plate and method for treating a feed, such as seawater |
| JP2022508288A (en) * | 2018-11-29 | 2022-01-19 | アルファ－ラヴァル・コーポレート・アーベー | Plate heat exchangers and heat exchange plates for treating supplies such as seawater |
| CN114097584A (en) * | 2021-12-02 | 2022-03-01 | 南通大学 | Desert water-making drip irrigation system and method utilizing solar energy |
| CN114341584A (en) * | 2019-09-13 | 2022-04-12 | 阿法拉伐股份有限公司 | Plate heat exchanger for treatment of liquid feed |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE528310C8 (en) * | 2005-04-01 | 2006-12-12 | Alfa Laval Corp Ab | plate heat exchangers |
| CN101985369B (en) * | 2010-11-29 | 2013-08-21 | 南京中船绿洲环保有限公司 | Plate type sea water desalinating device |
| CN105753081A (en) * | 2015-07-28 | 2016-07-13 | 南通中船机械制造有限公司 | Split plate-type sea water desalination system and method |
| CN105066751B (en) * | 2015-09-25 | 2017-04-12 | 四平市巨元瀚洋板式换热器有限公司 | Plate heat exchanger |
-
2017
- 2017-04-14 CN CN201720390667.6U patent/CN206720784U/en not_active Expired - Fee Related
- 2017-04-14 CN CN201710243486.5A patent/CN106830151A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112166293A (en) * | 2018-06-07 | 2021-01-01 | 阿法拉伐股份有限公司 | Plate heat exchanger, heat exchanger plate and method for treating a feed, such as seawater |
| CN112166293B (en) * | 2018-06-07 | 2023-05-05 | 阿法拉伐股份有限公司 | Plate heat exchanger, heat exchanger plate and method of treating a supply such as seawater |
| JP2022508288A (en) * | 2018-11-29 | 2022-01-19 | アルファ－ラヴァル・コーポレート・アーベー | Plate heat exchangers and heat exchange plates for treating supplies such as seawater |
| JP7132439B2 (en) | 2018-11-29 | 2022-09-06 | アルファ－ラヴァル・コーポレート・アーベー | Plate heat exchangers and heat exchange plates for processing feeds such as seawater |
| CN114341584A (en) * | 2019-09-13 | 2022-04-12 | 阿法拉伐股份有限公司 | Plate heat exchanger for treatment of liquid feed |
| CN114341584B (en) * | 2019-09-13 | 2023-09-12 | 阿法拉伐股份有限公司 | Plate heat exchanger for treatment of liquid feed |
| CN114097584A (en) * | 2021-12-02 | 2022-03-01 | 南通大学 | Desert water-making drip irrigation system and method utilizing solar energy |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106830151A (en) | 2017-06-13 |
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Granted publication date: 20171208 Termination date: 20210414 |