CN117861249A - Efficient heat exchange multi-effect evaporation crystallization all-in-one machine - Google Patents
Efficient heat exchange multi-effect evaporation crystallization all-in-one machine Download PDFInfo
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- CN117861249A CN117861249A CN202410276039.XA CN202410276039A CN117861249A CN 117861249 A CN117861249 A CN 117861249A CN 202410276039 A CN202410276039 A CN 202410276039A CN 117861249 A CN117861249 A CN 117861249A
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- 238000001704 evaporation Methods 0.000 title claims abstract description 144
- 230000008020 evaporation Effects 0.000 title claims abstract description 143
- 238000002425 crystallisation Methods 0.000 title claims abstract description 63
- 230000008025 crystallization Effects 0.000 title claims abstract description 62
- 230000007246 mechanism Effects 0.000 claims abstract description 60
- 230000005540 biological transmission Effects 0.000 claims abstract description 33
- 230000000694 effects Effects 0.000 claims abstract description 23
- 238000001802 infusion Methods 0.000 claims description 38
- 239000007788 liquid Substances 0.000 claims description 29
- 238000007789 sealing Methods 0.000 claims description 12
- 238000003756 stirring Methods 0.000 claims description 8
- 230000000903 blocking effect Effects 0.000 claims description 7
- 238000001914 filtration Methods 0.000 claims description 2
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000011552 falling film Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
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- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The invention discloses a multi-effect evaporation crystallization integrated machine with high-efficiency heat exchange, which relates to the technical field of evaporation crystallization and comprises a plurality of groups of evaporators, wherein the top end of one group of evaporators is provided with a feed hopper, the bottom end of the plurality of groups of evaporators is provided with crystallizers which are in one-to-one correspondence with the evaporators, transfusion pipelines are arranged among the plurality of groups of evaporators to enable the plurality of groups of evaporators to be communicated with each other, and a driving mechanism is arranged at the inner side position of the plurality of groups of evaporators and used for synchronously controlling the transmission speed of steam among the plurality of groups of evaporators; the internal steam pressure of four groups of evaporators is guaranteed to be gradually reduced, so that the steam can be recycled, the energy utilization rate of the steam is improved, the energy utilization effect of the multi-effect evaporation crystallization integrated machine is improved, and the energy consumption of the multi-effect evaporation crystallization integrated machine is reduced.
Description
Technical Field
The invention relates to the technical field of evaporation crystallization, in particular to a multi-effect evaporation crystallization all-in-one machine with efficient heat exchange.
Background
The prior MVR continuous evaporation crystallization system disclosed in the patent publication No. CN105879426A and the Chinese patent publication No. CN103203116B disclose a MVR continuous evaporation crystallization system and a continuous evaporation crystallization method, and in the use process of the multi-effect evaporation crystallization integrated machine, a plurality of evacuation systems are needed to be provided because of providing stepped air pressure difference, and the equipment cost and the energy loss of the multi-effect evaporation crystallization integrated machine are greatly increased by the plurality of evacuation systems, so that the use cost of the multi-effect evaporation crystallization integrated machine for treating solution crystallization is indirectly increased.
Disclosure of Invention
In order to overcome the technical problems, the invention aims to provide a multi-effect evaporation crystallization integrated machine with efficient heat exchange, so as to solve the problems of equipment cost and energy loss increase of the multi-effect evaporation crystallization integrated machine caused by the fact that a plurality of evacuation systems are required to be equipped because of the step-type air pressure difference in the prior art.
The aim of the invention can be achieved by the following technical scheme:
the utility model provides a multi-effect evaporation crystallization all-in-one that high-efficient heat transfer, including the multiunit evaporimeter, be provided with the feeder hopper on the top of one of them multiunit evaporimeter, the bottom of multiunit evaporimeter is provided with the crystallizer with the evaporimeter one-to-one, is provided with the infusion pipeline between multiunit evaporimeter, makes intercommunication each other between the multiunit evaporimeter, is provided with actuating mechanism in multiunit evaporimeter's inboard position, actuating mechanism is used for the transmission speed of steam between the synchronous control multiunit evaporimeter.
As a further scheme of the invention: the evaporator comprises an evaporation tower, sealing end covers are connected to the top end and the bottom end of the evaporation tower through bolts, an input pipeline and an output pipeline are fixedly connected to the side face of the evaporation tower, and a transmission pipeline is fixedly connected to one end, far away from the evaporation tower, of the output pipeline.
As a further scheme of the invention: the transmission pipeline comprises a driving impeller, two sides of the driving impeller are connected with an output connecting pipe and an input connecting pipe, the output connecting pipe is connected with an output pipeline on one group of evaporation towers, and the input connecting pipe is connected with an input pipeline on the other group of evaporation towers.
As a further scheme of the invention: the inner side of the sealing end cover at the top end of the evaporation tower is provided with an infusion bucket, the bottom end of the infusion bucket is fixedly connected with a liquid distribution pipe, and the bottom end of the liquid distribution pipe is provided with a heat exchange pipe.
As a further scheme of the invention: the crystallizer comprises a crystallization shell, wherein an input port is formed in the top end of the crystallization shell, an output port is formed in the bottom end of the crystallization shell, a moving track is formed in one side of the crystallization shell, a sealing plate is arranged on the inner side of the moving track, a liquid collecting port is formed in the other side of the crystallization shell, a stirring shaft is arranged on the inner side of the crystallization shell, and a sliding filtering mechanism is arranged on the top end of the liquid collecting port.
As a further scheme of the invention: the sliding filter mechanism comprises a motor, an output shaft of the motor is connected with a driving gear, a driven gear is meshed with the side face of the driving gear, and a blocking plate is meshed with one side, far away from the driving gear, of the driven gear.
As a further scheme of the invention: one end of the infusion pipeline is communicated with the liquid collecting port, and the other end of the infusion pipeline is communicated with the top end of the infusion bucket.
As a further scheme of the invention: the driving mechanism comprises a mechanism main body, a driving motor is connected to the top end of the mechanism main body through bolts, a plurality of transmission shafts are arranged on the side face of the mechanism main body through bearings, and one ends, far away from the mechanism main body, of the plurality of transmission shafts are fixedly connected with driving impellers.
As a further scheme of the invention: the inside of mechanism main part is equipped with the sun gear, and sun gear and driving motor's output shaft fixed connection, and the side meshing of sun gear has the planetary gear, and the outside meshing of planetary gear has outer ring gear, and planetary gear passes through pivot fixed mounting in the inboard of mechanism main part, and the inboard of mechanism main part still is equipped with first drive end, second drive end, third drive end and fourth drive end, and wherein first drive end and third drive end mesh with the sun gear, second drive end and fourth drive end mesh with outer ring gear.
As a further scheme of the invention: the first driving end and the fourth driving end are directly connected with two transmission shafts, one end of the outer sides of the second driving end and one end of the outer sides of the third driving end are connected with a differential mechanism, and the second driving end and the third driving end are connected with the other two transmission shafts through the differential mechanism.
The invention has the beneficial effects that:
according to the invention, the fourth driving end is connected with the driving impeller between the evaporation tower corresponding to the first-effect evaporation and the evaporation tower corresponding to the second-effect evaporation through the driving mechanism, the third driving end is connected with the driving impeller between the evaporation tower corresponding to the second-effect evaporation and the evaporation tower corresponding to the third-effect evaporation through the driving mechanism, the second driving end is connected with the driving impeller between the evaporation tower corresponding to the third-effect evaporation and the evaporation tower corresponding to the fourth-effect evaporation through the driving mechanism, and the first driving end is connected with the driving impeller between the evaporation tower corresponding to the fourth-effect evaporation and the evaporation tower corresponding to the first-effect evaporation through the driving mechanism, so that vapor pressures in the evaporation towers corresponding to the first-effect evaporation, the second-effect evaporation, the third-effect evaporation and the fourth-effect evaporation can be sequentially reduced, and the vapor pressures in the evaporation towers corresponding to the fourth-effect evaporation can be sequentially reduced, so that the vapor can be recycled, the energy utilization rate of the vapor can be improved, the energy utilization effect of the multi-effect evaporation crystallization all-in one machine can be ensured, and the energy consumption of the multi-effect evaporation crystallization all-in one machine can be ensured.
2. In the invention, the solution is recycled among the four groups of evaporators through the infusion pipeline, in particular, the redundant solution generated by the crystallizer at the bottom of the evaporator with one effect is conveyed into the infusion bucket corresponding to the evaporator with two effects through the liquid collecting port and the infusion pipeline, and the like, the redundant solution generated by the crystallizer at the bottom of the evaporator with two effects is conveyed into the infusion bucket corresponding to the evaporator with three effects, the redundant solution generated by the crystallizer at the bottom of the evaporator with three effects is conveyed into the infusion bucket corresponding to the evaporator with four effects, and the redundant solution generated by the crystallizer at the bottom of the evaporator with four effects is conveyed into the infusion bucket corresponding to the evaporator with one effect, so that the redundant solution among the evaporators with four groups can be recycled, and the complete utilization of the solution is ensured.
Drawings
The invention is further described below with reference to the accompanying drawings.
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a top view of the present invention;
FIG. 3 is a schematic view of the structure of the evaporation tower of the present invention;
FIG. 4 is a top view of the vaporization tower of the present invention;
FIG. 5 is a cross-sectional view of A-A of FIG. 4;
FIG. 6 is a schematic view showing the internal structure of the evaporation tower according to the present invention;
FIG. 7 is a schematic view showing the structure of a crystallizer in the present invention;
FIG. 8 is a top view of the crystallizer of the present invention;
FIG. 9 is a cross-sectional view of B-B of FIG. 8;
FIG. 10 is a schematic view of a sliding filter mechanism according to the present invention;
FIG. 11 is a schematic view of the driving mechanism of the present invention;
fig. 12 is a schematic view of the internal structure of the mechanism main body in the present invention.
In the figure: 1. an evaporator; 11. an evaporation tower; 12. sealing the end cover; 13. a liquid separating port; 14. an input pipe; 15. an output pipe; 16. a transmission pipeline; 161. driving the impeller; 162. an output connection pipe; 163. an input connecting pipe; 17. an infusion bucket; 18. a liquid separating pipe; 19. a heat exchange tube; 2. a feed hopper; 3. a crystallizer; 31. a crystallization shell; 32. an input port; 33. an output port; 34. a moving track; 35. a sealing plate; 36. a liquid collection port; 37. a sliding filter mechanism; 371. a motor; 372. a drive gear; 373. a driven gear; 374. a limit gear; 375. a blocking plate; 38. a stirring shaft; 4. an infusion tube; 5. a driving mechanism; 51. a mechanism body; 511. a sun gear; 512. a planetary gear; 513. an outer ring gear; 514. a first drive end; 515. a second drive end; 516. a third drive end; 517. a fourth drive end; 518. a differential; 52. a driving motor; 53. and a transmission shaft.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. 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.
Example 1
As shown in fig. 1 and 2, the invention discloses a multi-effect evaporation crystallization integrated machine with high-efficiency heat exchange, which comprises a plurality of groups of evaporators 1, wherein the top end of one group of evaporators 1 is provided with a feed hopper 2, the bottom ends of the plurality of groups of evaporators 1 are provided with crystallizers 3 which are in one-to-one correspondence with the evaporators 1, liquid delivery pipelines 4 are arranged among the plurality of groups of evaporators 1 to enable the plurality of groups of evaporators 1 to be communicated with each other, the inner side positions of the plurality of groups of evaporators 1 are provided with driving mechanisms 5, and the driving mechanisms 5 are used for synchronously controlling the transmission speeds of steam among the plurality of groups of evaporators 1;
it should be noted that, in this embodiment, four groups of evaporators 1 are taken as an example, that is, the number of the evaporators 1 is set to four groups, as shown in fig. 1, the four groups of evaporators 1 are respectively one-effect evaporation, two-effect evaporation, three-effect evaporation and four-effect evaporation, the four groups of evaporators 1 are mutually communicated, so that both vapor and solution between the four groups of evaporators 1 can be transferred, and the four groups of evaporators 1 all adopt falling film evaporation;
firstly, injecting a solution to be evaporated and crystallized into a first-effect evaporation evaporator 1 from a feed hopper 2, then heating and evaporating the solution in the first-effect evaporation evaporator 1, enabling the solution subjected to the first-effect evaporation to enter a crystallizer 3, cooling and crystallizing the solution in the crystallizer 3, enabling excessive solution to enter a second-effect evaporation evaporator 1, enabling excessive steam in the first-effect evaporation evaporator 1 to be introduced into the second-effect evaporation evaporator 1, and performing evaporation and crystallization treatment again in the second-effect evaporation evaporator 1;
in addition, it should be noted that the driving mechanism 5 arranged at the inner sides of the four groups of evaporators 1 is used for adjusting the steam circulation speed between the four groups of evaporators 1, so that the internal steam pressure of the four groups of evaporators 1 is ensured to be gradually decreased, the steam can be ensured to be recycled, the energy utilization rate of the steam is improved, the energy utilization effect of the multi-effect evaporation crystallization all-in-one machine is improved, and the energy consumption of the multi-effect evaporation crystallization all-in-one machine is reduced.
As shown in fig. 3 and 4, the evaporator 1 comprises an evaporation tower 11, sealing end covers 12 are connected to the top end and the bottom end of the evaporation tower 11 through bolts, an input pipeline 14 and an output pipeline 15 are fixedly connected to the side surface of the evaporation tower 11, and a transmission pipeline 16 is fixedly connected to one end, far away from the evaporation tower 11, of the output pipeline 15;
it should be noted that, the input pipe 14 will convey external steam into the inner cavity of the evaporation tower 11, and perform heat conversion with the solution in the inner cavity of the evaporation tower 11, so as to implement heating evaporation treatment on the solution, and meanwhile, the steam in the evaporation tower 11 may be conveyed into the conveying pipe 16 through the output pipe 15.
As shown in fig. 3, the transmission pipeline 16 comprises a driving impeller 161, an output connecting pipe 162 and an input connecting pipe 163 are connected to two sides of the driving impeller 161, the output connecting pipe 162 is connected with the output pipeline 15 on one group of the evaporation towers 11, and the input connecting pipe 163 is connected with the input pipeline 14 on the other group of the evaporation towers 11;
the steam is first sent from the output pipe 15 to the output connection pipe 162, the driving impeller 161 provides power for the steam flowing, and the steam in the output connection pipe 162 is sent to the input connection pipe 163, and the rotation speed of the driving impeller 161 is in a proportional relationship with the steam flowing speed between the output connection pipe 162 and the input connection pipe 163, that is, the greater the rotation speed of the driving impeller 161, the greater the corresponding steam flowing speed between the output connection pipe 162 and the input connection pipe 163.
As shown in fig. 5 and 6, an infusion bucket 17 is arranged on the inner side of a sealing end cover 12 at the top end of the evaporation tower 11, the bottom end of the infusion bucket 17 is fixedly connected with a liquid separating pipe 18, and a heat exchange pipe 19 is arranged at the bottom end of the liquid separating pipe 18;
it should be noted that, when the evaporation tower 11 is an efficient evaporation, the infusion bucket 17 is directly connected with the bottom end of the feed hopper 2, so that the solution in the feed hopper 2 can directly flow into the infusion bucket 17, the infusion bucket 17 conveys the solution into the heat exchange tube 19 through the liquid separation tube 18, and the steam in the evaporation tower 11 can perform a heat exchange procedure with the solution in the heat exchange tube 19, thereby increasing the temperature of the solution in the heat exchange tube 19, when the temperature of the solution in the heat exchange tube 19 reaches the evaporation temperature, the solution evaporates the steam, the effect of concentrating the solution is achieved, and the evaporated steam flows out from the bottom end of the heat exchange tube 19 and is discharged from the output pipeline 15;
during the process of flowing the solution into the heat exchange tube 19, the solution flows downwards along the inner wall of the heat exchange tube 19, so that the solution in the heat exchange tube 19 directly contacts with the inner wall of the heat exchange tube 19, and the steam entering the evaporation tower 11 from the input pipeline 14 exchanges heat with the solution in the heat exchange tube 19, because the solution flows downwards along the inner wall of the heat exchange tube 19, the center of the heat exchange tube 19 is hollow, the steam generated by the heated evaporation of the solution flows downwards from the center of the heat exchange tube 19, because the output pipeline 15 continuously sucks the steam at the bottom end of the inner cavity of the evaporation tower 11, so that negative pressure is formed at the bottom end of the inner cavity of the evaporation tower 11, and the steam flows downwards from the center of the heat exchange tube 19.
Example 2
As shown in fig. 7, 8 and 9, the crystallizer 3 comprises a crystallization shell 31, an input port 32 is arranged at the top end of the crystallization shell 31, an output port 33 is arranged at the bottom end of the crystallization shell 31, a moving track 34 is arranged on one side of the crystallization shell 31, a sealing plate 35 is arranged on the inner side of the moving track 34, a liquid collecting port 36 is arranged on the other side of the crystallization shell 31, a stirring shaft 38 is arranged on the inner side of the crystallization shell 31, and a sliding filter mechanism 37 is arranged at the top end of the liquid collecting port 36;
it should be noted that, the bottom end of the evaporation tower 11 is provided with the liquid separating port 13, the liquid separating port 13 is directly connected with the input port 32 in a sealing manner, so that the concentrated solution passing through the heat exchange tube 19 enters the input port 32 from the liquid separating port 13 and then enters the crystallization shell 31 from the input port 32, in addition, a motor is installed at the bottom of the inner cavity of the evaporation tower 11, an output shaft of the motor is directly fixedly connected with the stirring shaft 38, so that after the motor is turned on, the motor drives the stirring shaft 38 through the conveying shaft, the stirring shaft 38 rotates at a high speed, the rotating stirring shaft 38 cooperates with the temperature reduction of the concentrated solution in the crystallization shell 31, the crystallization of the concentrated solution in the crystallization shell 31 is promoted, and the occurrence of massive crystallization is prevented.
As shown in fig. 10, the sliding filter mechanism 37 includes a motor 371, an output shaft of the motor 371 is connected with a driving gear 372, a driven gear 373 is meshed with a side surface of the driving gear 372, and a blocking plate 375 is meshed with a side of the driven gear 373 away from the driving gear 372;
it should be noted that, when the crystallization of the concentrated solution in the crystallization shell 31 is completed, the motor 371 is opened, the output shaft of the motor 371 drives the driving gear 372, and since the side surface of the driving gear 372 is meshed with the driven gear 373, and the side of the driven gear 373 away from the driving gear 372 is meshed with the blocking plate 375, the driving gear 372 drives the blocking plate 375 through the driven gear 373 to move the blocking plate 375 upward, so that the junction between the liquid collecting port 36 and the crystallization shell 31 is opened, and a filter screen is further provided at the junction between the liquid collecting port 36 and the crystallization shell 31, so that the solution in the crystallization shell 31 is ensured to enter the liquid collecting port 36 through the filter screen, and the crystallization block in the crystallization shell 31 is prevented from entering the liquid collecting port 36 by the filter screen.
As shown in fig. 1 and 5, one end of the infusion tube 4 is communicated with the liquid collecting port 36, and the other end of the infusion tube 4 is communicated with the top end of the infusion bucket 17;
it should be noted that, the solution is recycled through the infusion pipeline 4 between the four groups of evaporators 1, specifically, the redundant solution generated by the crystallizer 3 at the bottom of the evaporator 1 with one effect is conveyed to the interior of the infusion bucket 17 corresponding to the evaporator 1 with two effects through the liquid collecting port 36 and the infusion pipeline 4, and the redundant solution generated by the crystallizer 3 at the bottom of the evaporator 1 with two effects is conveyed to the interior of the infusion bucket 17 corresponding to the evaporator 1 with three effects, the redundant solution generated by the crystallizer 3 at the bottom of the evaporator 1 with three effects is conveyed to the interior of the infusion bucket 17 corresponding to the evaporator 1 with four effects, and the redundant solution generated by the crystallizer 3 at the bottom of the evaporator 1 with four effects is conveyed to the interior of the infusion bucket 17 corresponding to the evaporator 1 with one effect, so that the redundant solution between the evaporators 1 with four effects can be recycled, and the full utilization of the solution is ensured;
in addition, it should be noted that a suction pump is installed at the middle position of the infusion pipeline 4, and the suction pump is used for providing power for the solution flowing in the infusion pipeline 4, and the solution entering the infusion pipeline 4 is the solution after crystallization, so that the concentration is not high, and crystallization is not easy to generate to block the infusion pipeline 4.
Example 3
As shown in fig. 11, the driving mechanism 5 includes a mechanism main body 51, a driving motor 52 is bolted to the top end of the mechanism main body 51, a plurality of transmission shafts 53 are mounted on the side surface of the mechanism main body 51 through bearings, and one end of the plurality of transmission shafts 53 away from the mechanism main body 51 is fixedly connected with a driving impeller 161;
it should be noted that, here, corresponding to the four groups of evaporators 1 in embodiment 1, the side surface of the mechanism main body 51 is provided with four transmission shafts 53 through bearings, the four transmission shafts 53 correspond to the four transmission pipes 16 between the four groups of evaporators 1, specifically, one end of the four transmission shafts 53 away from the mechanism main body 51 is directly connected with the driving impellers 161 in the four transmission pipes 16, so when the four transmission shafts 53 rotate, the four transmission shafts 53 respectively drive the four driving impellers 161, when the four driving impellers 161 rotate, the four transmission pipes 16 can generate adsorption effect, and the vapor in the evaporation towers 11 is sucked through the output pipes 15, thereby realizing the circulation of the vapor between the four groups of evaporation towers 11.
As shown in fig. 12, a sun gear 511 is arranged on the inner side of the mechanism main body 51, the sun gear 511 is fixedly connected with an output shaft of the driving motor 52, a planetary gear 512 is meshed with the side surface of the sun gear 511, an outer gear ring 513 is meshed with the outer side of the planetary gear 512, the planetary gear 512 is fixedly arranged on the inner side of the mechanism main body 51 through a rotating shaft, a first driving end 514, a second driving end 515, a third driving end 516 and a fourth driving end 517 are further arranged on the inner side of the mechanism main body 51, the first driving end 514 and the third driving end 516 are meshed with the sun gear 511, and the second driving end 515 and the fourth driving end 517 are meshed with the outer gear ring 513;
it should be noted that, when the multiple-effect evaporation crystallization integrated machine operates, the driving motor 52 on the top surface of the mechanism main body 51 is turned on, and since the sun gear 511 is fixedly connected with the output shaft of the driving motor 52, after the driving motor 52 is turned on, the driving motor 52 drives the sun gear 511 to rotate through the conveying shaft, the rotating sun gear 511 drives the outer gear ring 513 through the planetary gear 512, so that the simultaneous rotation of the sun gear 511 and the outer gear ring 513 is realized, and in addition, the planetary gear 512 is installed inside the mechanism main body 51 through a rotating shaft;
since the first driving end 514 and the third driving end 516 are meshed with the sun gear 511, and the second driving end 515 and the fourth driving end 517 are meshed with the outer gear ring 513, the sun gear 511 drives the first driving end 514 and the third driving end 516, and the outer gear ring 513 drives the second driving end 515 and the fourth driving end 517;
it should be further noted that the rotational speed of the sun gear 511 is greater than the rotational speed of the outer gear 513, so the rotational speeds of the first and third driving ends 514, 516 will be greater than the rotational speeds of the second and fourth driving ends 515, 517.
As shown in fig. 12, the first driving end 514 and the fourth driving end 517 are directly connected with two transmission shafts 53, one end of the outer sides of the second driving end 515 and the third driving end 516 is connected with a differential 518, and the second driving end 515 and the third driving end 516 are connected with the other two transmission shafts 53 through the differential 518;
it should be noted that, the rotational speeds output by the second driving end 515 and the third driving end 516 are adjusted by the differential 518, so as to ensure that the rotational speeds output by the first driving end 514, the second driving end 515, the third driving end 516 and the fourth driving end 517 are gradually reduced;
in addition, it should be noted that the fourth driving end 517 is connected to the driving impeller 161 between the evaporation tower 11 corresponding to the first-effect evaporation and the evaporation tower 11 corresponding to the second-effect evaporation through the driving shaft 53, the third driving end 516 is connected to the driving impeller 161 between the evaporation tower 11 corresponding to the second-effect evaporation and the evaporation tower 11 corresponding to the third-effect evaporation through the driving shaft 53, the second driving end 515 is connected to the driving impeller 161 between the evaporation tower 11 corresponding to the third-effect evaporation and the evaporation tower 11 corresponding to the fourth-effect evaporation through the driving shaft 53, and the first driving end 514 is connected to the driving impeller 161 between the evaporation tower 11 corresponding to the fourth-effect evaporation and the evaporation tower 11 corresponding to the first-effect evaporation through the driving shaft 53, so that vapor pressures inside the evaporation towers 11 corresponding to the first-effect evaporation, the second-effect evaporation, the third-effect evaporation and the fourth-effect evaporation can be sequentially reduced, and the evaporation temperatures inside the evaporation towers 11 of the four groups can be sequentially reduced, and the heat of the vapor can be fully utilized;
when the driving mechanism 5 drives the four groups of transmission pipelines 16 to realize steam flow, the driving impellers 161 between the evaporation towers 11 corresponding to the first-effect evaporation and the evaporation towers 11 corresponding to the second-effect evaporation, the driving impellers 161 between the evaporation towers 11 corresponding to the second-effect evaporation and the evaporation towers 11 corresponding to the third-effect evaporation, and the vapor pressure transmitted by the driving impellers 161 between the evaporation towers 11 corresponding to the third-effect evaporation and the evaporation towers 11 corresponding to the fourth-effect evaporation are from high to low, so that positive driving force is generated for the driving mechanism 5, and the vapor pressure transmitted by the driving impellers 161 between the evaporation towers 11 corresponding to the fourth-effect evaporation and the evaporation towers 11 corresponding to the first-effect evaporation is from low to high, so that negative driving force is generated for the driving mechanism 5, and the positive driving force of the driving mechanism 5 counteracts part of the negative driving force, thereby greatly reducing the energy consumption of the driving motor 52.
The foregoing describes one embodiment of the present invention in detail, but the description is only a preferred embodiment of the present invention and should not be construed as limiting the scope of the invention. All equivalent changes and modifications within the scope of the present invention are intended to be covered by the present invention.
Claims (5)
1. High-efficient heat transfer's multiple effect evaporation crystallization all-in-one, its characterized in that includes:
an evaporator (1) provided with a plurality of groups;
a feed hopper (2) arranged at the top end of one group of evaporators (1);
the crystallizers (3) are arranged in a plurality of groups, and the crystallizer (3) in a plurality of groups are arranged at the bottom ends of the evaporators (1) in a one-to-one manner;
the infusion pipeline (4) is arranged among the plurality of groups of evaporators (1) and enables the plurality of groups of evaporators (1) to be communicated with each other;
the driving mechanism (5) is arranged at the inner side position of the plurality of groups of evaporators (1), and the driving mechanism (5) is used for synchronously controlling the transmission speed of steam among the plurality of groups of evaporators (1);
the evaporator (1) comprises an evaporation tower (11), sealing end covers (12) are connected to the top end and the bottom end of the evaporation tower (11) through bolts, an input pipeline (14) and an output pipeline (15) are fixedly connected to the side face of the evaporation tower (11), and a transmission pipeline (16) is fixedly connected to one end, far away from the evaporation tower (11), of the output pipeline (15);
the transmission pipeline (16) comprises a driving impeller (161), wherein output connecting pipes (162) and input connecting pipes (163) are connected to two sides of the driving impeller (161), the output connecting pipes (162) are connected with output pipelines (15) on one group of evaporation towers (11), and the input connecting pipes (163) are connected with input pipelines (14) on the other group of evaporation towers (11);
the driving mechanism (5) comprises a mechanism main body (51), a driving motor (52) is connected to the top end of the mechanism main body (51) through bolts, a plurality of transmission shafts (53) are arranged on the side surface of the mechanism main body (51) through bearings, and one ends, far away from the mechanism main body (51), of the plurality of transmission shafts (53) are fixedly connected with a driving impeller (161);
the inner side of the mechanism main body (51) is provided with a sun gear (511), the sun gear (511) is fixedly connected with an output shaft of a driving motor (52), a side surface of the sun gear (511) is meshed with a planetary gear (512), the outer side of the planetary gear (512) is meshed with an outer gear ring (513), the planetary gear (512) is fixedly arranged on the inner side of the mechanism main body (51) through a rotating shaft, the inner side of the mechanism main body (51) is also provided with a first driving end (514), a second driving end (515), a third driving end (516) and a fourth driving end (517), the first driving end (514) and the third driving end (516) are meshed with the sun gear (511), and the second driving end (515) and the fourth driving end (517) are meshed with the outer gear ring (513);
the first driving end (514) and the fourth driving end (517) are directly connected with two transmission shafts (53), one end outside the second driving end (515) and the third driving end (516) is connected with a differential mechanism (518), and the second driving end (515) and the third driving end (516) are connected with the other two transmission shafts (53) through the differential mechanism (518).
2. The efficient heat exchange multi-effect evaporation crystallization all-in-one machine according to claim 1, wherein an infusion bucket (17) is arranged on the inner side of a sealing end cover (12) at the top end of the evaporation tower (11), a liquid separating pipe (18) is fixedly connected to the bottom end of the infusion bucket (17), and a heat exchange pipe (19) is arranged at the bottom end of the liquid separating pipe (18).
3. The efficient heat exchange multi-effect evaporation crystallization all-in-one machine according to claim 2, wherein the crystallizer (3) comprises a crystallization shell (31), an input port (32) is arranged at the top end of the crystallization shell (31), an output port (33) is arranged at the bottom end of the crystallization shell (31), a moving track (34) is arranged on one side of the crystallization shell (31), a sealing plate (35) is arranged on the inner side of the moving track (34), a liquid collecting port (36) is arranged on the other side of the crystallization shell (31), a stirring shaft (38) is arranged on the inner side of the crystallization shell (31), and a sliding filtering mechanism (37) is arranged at the top end of the liquid collecting port (36).
4. A multi-effect evaporation crystallization integrated machine with high efficiency heat exchange according to claim 3, wherein the sliding filter mechanism (37) comprises a motor (371), an output shaft of the motor (371) is connected with a driving gear (372), a driven gear (373) is meshed with a side surface of the driving gear (372), and a blocking plate (375) is meshed with a side of the driven gear (373) far away from the driving gear (372).
5. A multi-effect evaporation crystallization integrated machine with high efficiency heat exchange according to claim 3, wherein one end of the infusion pipeline (4) is communicated with the liquid collecting port (36), and the other end of the infusion pipeline (4) is communicated with the top end of the infusion bucket (17).
Priority Applications (1)
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