CN115321626A - Multi-effect continuous energy-saving forced circulation crystallization evaporator - Google Patents
Multi-effect continuous energy-saving forced circulation crystallization evaporator Download PDFInfo
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- CN115321626A CN115321626A CN202210899673.XA CN202210899673A CN115321626A CN 115321626 A CN115321626 A CN 115321626A CN 202210899673 A CN202210899673 A CN 202210899673A CN 115321626 A CN115321626 A CN 115321626A
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- 238000002425 crystallisation Methods 0.000 title claims abstract description 26
- 230000008025 crystallization Effects 0.000 title claims abstract description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 32
- 239000000463 material Substances 0.000 claims abstract description 31
- 230000009290 primary effect Effects 0.000 claims abstract description 11
- 230000009291 secondary effect Effects 0.000 claims abstract description 10
- 230000000694 effects Effects 0.000 claims description 33
- 238000001704 evaporation Methods 0.000 abstract description 18
- 230000008020 evaporation Effects 0.000 abstract description 17
- 238000000926 separation method Methods 0.000 abstract description 8
- 230000009293 tertiary effect Effects 0.000 abstract description 4
- 239000002245 particle Substances 0.000 abstract description 2
- 239000007787 solid Substances 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000002351 wastewater Substances 0.000 description 4
- 150000003839 salts Chemical class 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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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
- C02F1/048—Purification of waste water by evaporation
-
- 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
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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)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The invention relates to the technical field of evaporators, in particular to a multi-effect continuous energy-saving forced circulation crystallization evaporator which comprises a material feeding tank, a primary evaporator, a secondary evaporator and a tertiary evaporator, wherein a primary-effect separator is arranged on one side of the primary evaporator, a secondary-effect separator is arranged on one side of the secondary evaporator, a tertiary-effect separator is arranged on one side of the tertiary evaporator, and a condenser and a crystallization tank are arranged on the outer side of the tertiary-effect separator. In this multiple-effect continuous energy-saving forced circulation crystallization evaporator, each pipeline setting through upper portion guarantees that condensate water and steam and centralized collection and discharge, and guarantees that moisture fully separates, and each pipeline through the lower part setting can realize the circulation evaporation of material and the circulation separation of moisture, guarantees that last exhaust material is the solid particle state, can not cause the great condition of humidity.
Description
Technical Field
The invention relates to the technical field of evaporators, in particular to a multi-effect continuous energy-saving forced circulation crystallization evaporator.
Background
The existing wastewater contains a large amount of salt, and after the wastewater is directly discharged, serious pollution can be caused, such as salinization of land can be caused; if the wastewater is treated before being discharged, the pollution is greatly reduced, and the salt in the wastewater can be fully analyzed and reused for production, so that the production cost is reduced.
Patent publication No. CN114259744A discloses a multi-effect evaporation crystallization apparatus, comprising: the evaporative crystallization unit at least comprises a first evaporation component for receiving feed liquid and evaporating and concentrating the feed liquid; it is characterized by also comprising: the comprehensive groove is used for receiving the feed liquid discharged by the first evaporation assembly; the liquid return unit is respectively connected with the first evaporation assembly and the comprehensive groove and is used for conveying the feed liquid in the comprehensive groove to the first evaporation assembly, so that the phenomenon that the material pipe of the multi-effect evaporation equipment is blocked from one effect to two effects and from two effects to three effects can be avoided, and further, the system operation fault is formed, and the inconvenience in production is caused.
Although this technical scheme avoids multiple-effect evaporation equipment from one to two effects, two effects to the stifled pipe phenomenon of material pipe of triple effect, and then form system operation trouble, cause production inconvenience, its inside condensate water and gaseous collection are not effective enough, lead to humidity in the discharged salt great, and its inside moisture can not the abundant separation.
Disclosure of Invention
The invention aims to provide a multi-effect continuous energy-saving forced circulation crystallization evaporator to solve the problems in the background technology.
In order to achieve the purpose, the invention provides a multiple-effect continuous energy-saving forced circulation crystallization evaporator which comprises a material conveying tank, a primary evaporator, a secondary evaporator and a tertiary evaporator, wherein a primary-effect separator is arranged on one side of the primary evaporator, a secondary-effect separator is arranged on one side of the secondary evaporator, a tertiary-effect separator is arranged on one side of the tertiary evaporator, and a condenser and a crystallization tank are arranged on the outer side of the tertiary-effect separator.
Preferably, the material conveying tank is connected with the first-stage evaporator through a material inlet pipe, and the first-stage evaporator, the second-stage evaporator and the third-stage evaporator are communicated through material conveying pipes in sequence.
Preferably, the first-effect evaporator is communicated with the first-effect separator through a first feeding pipe, the bottoms of the first-effect separator and the second-effect separator are respectively provided with a first-effect circulating pump and a second-effect circulating pump, circulating pipes are mounted on the first-effect circulating pump and the second-effect circulating pump, the circulating pipe on the first-effect circulating pump is used for communicating the first-effect evaporator with the first-effect separator, the circulating pipe on the second-effect circulating pump is used for communicating the second-effect separator with the second-effect evaporator, the circulating pipe on the first-effect circulating pump is communicated with the second-effect separator through a second feeding pipe, and the circulating pipe on the second-effect circulating pump is communicated with the third-order evaporator through a third feeding pipe.
Preferably, the bottom of the third-stage evaporator is communicated with the three-effect separator through a discharge pipe, and a three-effect circulating pump is mounted on the discharge pipe.
Preferably, a discharge pump is arranged on the outer side of the triple-effect separator, the discharge pump is connected with the discharge end and the feed end of the triple-effect separator through a discharge circulating pipe, the middle part of the discharge circulating pipe is connected with the crystallizing tank through a pipeline, and the discharge pump is installed on the pipeline.
Preferably, one side of the bottom of the primary evaporator is connected with a first condensate water discharge pipe, the outer wall of the primary evaporator is connected with the primary effect separator through a discharge pipe, the primary evaporator, the secondary evaporator, the tertiary evaporator and the condenser are sequentially connected through gas pipes, the top of the primary effect separator is connected with the secondary evaporator through a gas pipe, the top of the secondary effect separator is connected with the tertiary evaporator through a gas pipe, and the tops of the primary evaporator, the secondary evaporator and the tertiary evaporator are connected with the condenser through steam discharge pipes.
Preferably, the lower parts of the second-stage evaporator and the third-stage evaporator are connected through a condensed water conveying pipe, the lower parts of the third-stage evaporator and the three-effect separator are connected through a condensed water collecting pipe, the lower parts of the three-effect separator and the condenser are connected through a second condensed water discharge pipe, and one side of the bottom of the condenser is connected with a condensed water discharge pipe.
Compared with the prior art, the invention has the beneficial effects that:
1. in the multi-effect continuous energy-saving forced circulation crystallization evaporator, the arrangement of each pipeline on the upper part ensures that condensed water and steam are collected and discharged in a centralized manner, ensures that the water is fully separated, and facilitates the centralized treatment of the steam and the condensed water.
2. In the multi-effect continuous energy-saving forced circulation crystallization evaporator, the circulation evaporation of materials and the circulation separation of moisture can be realized through the pipelines arranged at the lower part, so that the materials are fully evaporated, the materials discharged at last are in a solid particle state, and the condition of high humidity can not be caused.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic diagram of the material conveying path in the present invention;
fig. 3 is a schematic diagram of the delivery route of steam and condensed water in the present invention.
The various reference numbers in the figures mean:
1. a material feeding tank; 101. a feed pipe; 102. a delivery pipe; 2. a first-stage evaporator; 3. a secondary evaporator; 4. a third-stage evaporator; 5. a first effect separator; 6. a two-effect separator; 7. a three-effect separator; 8. a condenser; 801. a condensed water discharge pipe; 9. a one-effect circulation pump; 10. a two-effect circulating pump; 11. a three-effect circulating pump; 12. a discharge pump; 13. a crystallization tank; 14. a first feed pipe; 15. a circulation pipe; 16. a second feed tube; 17. a discharge pipe; 18. a discharge circulating pipe; 19. a discharge pump; 20. a third feed tube; 21. an exhaust pipe; 22. a first condensed water discharge pipe; 23. a gas delivery pipe; 24. an air duct; 25. a steam discharge pipe; 26. a condensed water conveying pipe; 27. a condensed water collecting pipe; 28. and a second condensed water discharge pipe.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations or positional relationships based on those shown in the drawings, merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a definition of "a first" or "a second" feature may explicitly or implicitly include one or more of the features. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
Example 1
The invention provides a multiple-effect continuous energy-saving forced circulation crystallization evaporator, which comprises a material feeding tank 1, a first-stage evaporator 2, a second-stage evaporator 3 and a third-stage evaporator 4, wherein the material feeding tank is used for carrying out multi-stage evaporation on conveyed materials respectively to ensure that the moisture of the conveyed materials is fully evaporated and separated, one side of the first-stage evaporator 2 is provided with a first-effect separator 5, one side of the second-stage evaporator 3 is provided with a second-effect separator 6, one side of the third-stage evaporator 4 is provided with a third-effect separator 7 for fully separating the materials from steam, and the outer side of the third-effect separator 7 is provided with a condenser 8 and a crystallization tank 13 for respectively collecting condensed water and the materials.
In this embodiment, the material feeding tank 1 is connected with the first-stage evaporator 2 through the feeding pipe 101, and the first-stage evaporator 2, the second-stage evaporator 3 and the third-stage evaporator 4 are communicated with each other through the material conveying pipe 102 in sequence, so that the material is conveyed conveniently.
Specifically, the first-stage evaporator 2 is communicated with the first-stage effect separator 5 through a first feeding pipe 14, the first-stage effect separator 5 and the second-stage effect separator 6 are respectively provided with a first-stage effect circulating pump 9 and a second-stage effect circulating pump 10 at the bottoms, circulating pipes 15 are respectively arranged on the first-stage effect circulating pump 9 and the second-stage effect circulating pump 10, the first-stage evaporator 2 is communicated with the first-stage effect separator 5 through the circulating pipe 15 on the first-stage effect circulating pump 9, the second-stage effect separator 6 is communicated with the second-stage evaporator 3 through the circulating pipe 15 on the second-stage effect circulating pump 10, the circulating pipe 15 on the first-stage effect circulating pump 9 is communicated with the second-stage effect separator 6 through a second feeding pipe 16, the circulating pipe 15 on the second-stage effect circulating pump 10 is communicated with the third-stage evaporator 4 through a third feeding pipe 20, and materials are subjected to multiple times of evaporation and separation, and are subjected to circular conveying through the circulating pipe 15 during evaporation and separation, so that thorough evaporation and separation are ensured.
Further, the bottom of the third-stage evaporator 4 is communicated with the three-effect separator 7 through a discharge pipe 17, a three-effect circulating pump 11 is installed on the discharge pipe 17, and the evaporated and separated materials enter the three-effect separator 7.
Further, the outer side of the triple-effect separator 7 is provided with a discharge pump 12, the discharge pump 12 is connected with the discharge end and the feed end of the triple-effect separator 7 through a discharge circulating pipe 18, the middle part of the discharge circulating pipe 18 is connected with the crystallizing tank 13 through a pipeline, and a discharge pump 19 is installed on the pipeline to feed the material into the crystallizing tank 13 for crystallization.
Example 2
In order to further facilitate the collection and discharge of condensed water and steam, on the basis of embodiment 1, one side of the bottom of the first-stage evaporator 2 is connected with a first condensed water discharge pipe 22, the outer wall of the first-stage evaporator 2 is connected with the first-stage separator 5 through an exhaust pipe 21, the first-stage evaporator 2, the second-stage evaporator 3, the third-stage evaporator 4 and the condenser 8 are sequentially connected through a gas pipe 23, the top of the first-stage separator 5 is connected with the second-stage evaporator 3 through a gas guide pipe 24, the top of the second-stage separator 6 is connected with the third-stage evaporator 4 through a gas guide pipe 24, the tops of the first-stage evaporator 2, the second-stage evaporator 3 and the third-stage evaporator 4 are all connected with the condenser 8 through a steam discharge pipe 25, all the steam generated after multiple times of evaporation is collected into the condenser 8, and the condensed steam is changed into condensed water to be thoroughly discharged.
Furthermore, the lower parts of the second-stage evaporator 3 and the third-stage evaporator 4 are connected through a condensed water conveying pipe 26, the lower parts of the third-stage evaporator 4 and the three-effect separator 7 are connected through a condensed water collecting pipe 27, the lower parts of the three-effect separator 7 and the condenser 8 are connected through a second condensed water discharging pipe 28, one side of the bottom of the condenser 8 is connected with a condensed water discharging pipe 801, and condensed water generated in the second-stage evaporator 3, the third-stage evaporator 4 and the three-effect separator 7 is collected and discharged in a centralized mode.
When the multi-effect continuous energy-saving forced circulation crystallization evaporator is used, the device is assembled, all pipelines are connected, the device is opened to work, materials sequentially enter the first-stage evaporator 2, the second-stage evaporator 3 and the third-stage evaporator 4 from the feeding tank 1 to be evaporated, and sequentially enter the first-stage separator 5, the second-stage separator 6 and the third-stage separator 7 to be separated from steam, during evaporation and separation, the materials are circularly conveyed through the circulating pipe 15 to ensure complete evaporation and separation, the materials which are evaporated and separated for multiple times enter the crystallization tank 13 to be crystallized, all steam which is generated after multiple evaporation through the first-stage evaporator 2, the second-stage evaporator 3 and the third-stage evaporator 4 is collected into the condenser 8, the steam is condensed and then turned into condensed water to be thoroughly discharged, and the condensed water generated in the second-stage evaporator 3, the third-stage evaporator 4 and the third-stage separator 7 is collected through the pipelines and enters the condenser 8 to be intensively collected and discharged.
The foregoing shows and describes the general principles, principal features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the present invention, which fall within the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. A multi-effect continuous energy-saving forced circulation crystallization evaporator is characterized in that: including feed tank (1), one-level evaporimeter (2), second grade evaporimeter (3), tertiary evaporimeter (4), one side of one-level evaporimeter (2) is provided with one and imitates separator (5), one side of second grade evaporimeter (3) is provided with two effect separator (6), one side of tertiary evaporimeter (4) is provided with three effect separator (7), the outside of three effect separator (7) is provided with condenser (8) and crystallizer (13).
2. The multiple-effect continuous energy-saving forced circulation crystallization evaporator of claim 1, characterized in that: the feed tank (1) is connected with the primary evaporator (2) through the feed pipe (101), and the primary evaporator (2), the secondary evaporator (3) and the tertiary evaporator (4) are communicated through the feed conveying pipe (102) in sequence.
3. The multiple-effect continuous energy-saving forced circulation crystallization evaporator of claim 2, characterized in that: the primary evaporator (2) is communicated with the primary effect separator (5) through a first feeding pipe (14), the bottoms of the primary effect separator (5) and the secondary effect separator (6) are respectively provided with a primary effect circulating pump (9) and a secondary effect circulating pump (10), circulating pipes (15) are installed on the primary effect circulating pump (9) and the secondary effect circulating pump (10), the primary evaporator (2) is communicated with the primary effect separator (5) through the circulating pipes (15) on the primary effect circulating pump (9), the secondary effect separator (6) is communicated with the secondary evaporator (3) through the circulating pipes (15) on the secondary effect circulating pump (10), the circulating pipes (15) on the primary effect circulating pump (9) are communicated with the secondary effect separator (6) through a second feeding pipe (16), and the circulating pipes (15) on the secondary effect circulating pump (10) are communicated with the tertiary evaporator (4) through a third feeding pipe (20).
4. The multiple-effect continuous energy-saving forced circulation crystallization evaporator of claim 3, characterized in that: the bottom of tertiary evaporator (4) is through arranging material pipe (17) and triple effect separator (7) intercommunication, arrange and install triple effect circulating pump (11) on material pipe (17).
5. The multiple-effect continuous energy-saving forced circulation crystallization evaporator of claim 4, characterized in that: the outside of triple effect separator (7) is provided with discharge pump (12), discharge pump (12) are connected with the discharge end and the feed end of triple effect separator (7) through ejection of compact circulating pipe (18), the middle part of ejection of compact circulating pipe (18) is passed through the pipeline and is connected with crystallizer (13), and installs discharge pump (19) on the pipeline.
6. The multiple-effect continuous energy-saving forced circulation crystallization evaporator of claim 5, characterized in that: bottom one side of one-level evaporimeter (2) is connected with first comdenstion water discharge pipe (22), the outer wall of one-level evaporimeter (2) passes through blast pipe (21) and is connected with one effect separator (5), loop through gas-supply pipe (23) between one-level evaporimeter (2), second grade evaporimeter (3), tertiary evaporimeter (4), condenser (8) and be connected, the top of one-level evaporimeter (5) is passed through air duct (24) and is connected with second grade evaporimeter (3), the top of two-level effect separator (6) is passed through air duct (24) and is connected with tertiary evaporimeter (4), the top of one-level evaporimeter (2), second grade evaporimeter (3), tertiary evaporimeter (4) all is connected with condenser (8) through steam discharge pipe (25).
7. The multiple-effect continuous energy-saving forced circulation crystallization evaporator of claim 6, characterized in that: be connected through comdenstion water conveyer pipe (26) between the lower part of second grade evaporator (3) and tertiary evaporator (4), be connected through comdenstion water collecting pipe (27) between the lower part of tertiary evaporator (4) and triple effect separator (7), be connected through second comdenstion water discharge pipe (28) between the lower part of triple effect separator (7) and condenser (8), bottom one side of condenser (8) is connected with comdenstion water discharge pipe (801).
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| CN202210899673.XA CN115321626A (en) | 2022-07-28 | 2022-07-28 | Multi-effect continuous energy-saving forced circulation crystallization evaporator |
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| CN202210899673.XA CN115321626A (en) | 2022-07-28 | 2022-07-28 | Multi-effect continuous energy-saving forced circulation crystallization evaporator |
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| CN201301235Y (en) * | 2008-06-30 | 2009-09-02 | 浙江商达环保有限公司 | Triple-effect continuous evaporative condenser |
| CN203355317U (en) * | 2013-06-13 | 2013-12-25 | 苏州乔发蒸发器制造有限公司 | Four-effect crystallizing evaporator |
| CN104208902A (en) * | 2014-09-28 | 2014-12-17 | 湖北吉星化工集团有限责任公司 | Triple-effect evaporation and crystallization production process and device |
| CN104548637A (en) * | 2015-01-05 | 2015-04-29 | 温州泰康蒸发器有限公司 | Novel energy-saving three-effect crystallizing evaporator |
| WO2017124215A1 (en) * | 2016-01-18 | 2017-07-27 | 江门市佰川环境科技有限公司 | Double-effect cross-flow mvr evaporation concentration system |
| CN108159721A (en) * | 2018-02-23 | 2018-06-15 | 江苏澳创生物科技有限公司 | Tryptophan TVR evaporating, concentrating and crystallizings system and the method that condensing crystallizing is carried out using the system |
| CN114604924A (en) * | 2022-02-22 | 2022-06-10 | 浙江晧月水务科技有限公司 | Low-temperature flash evaporation, concentration and crystallization integrated and zero-discharge process for treating desulfurization wastewater by concentrated solution backflow |
| CN217732726U (en) * | 2022-07-28 | 2022-11-04 | 温州市金榜轻工机械有限公司 | Multi-effect continuous energy-saving forced circulation crystallization evaporator |
-
2022
- 2022-07-28 CN CN202210899673.XA patent/CN115321626A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201301235Y (en) * | 2008-06-30 | 2009-09-02 | 浙江商达环保有限公司 | Triple-effect continuous evaporative condenser |
| CN203355317U (en) * | 2013-06-13 | 2013-12-25 | 苏州乔发蒸发器制造有限公司 | Four-effect crystallizing evaporator |
| CN104208902A (en) * | 2014-09-28 | 2014-12-17 | 湖北吉星化工集团有限责任公司 | Triple-effect evaporation and crystallization production process and device |
| CN104548637A (en) * | 2015-01-05 | 2015-04-29 | 温州泰康蒸发器有限公司 | Novel energy-saving three-effect crystallizing evaporator |
| WO2017124215A1 (en) * | 2016-01-18 | 2017-07-27 | 江门市佰川环境科技有限公司 | Double-effect cross-flow mvr evaporation concentration system |
| CN108159721A (en) * | 2018-02-23 | 2018-06-15 | 江苏澳创生物科技有限公司 | Tryptophan TVR evaporating, concentrating and crystallizings system and the method that condensing crystallizing is carried out using the system |
| CN114604924A (en) * | 2022-02-22 | 2022-06-10 | 浙江晧月水务科技有限公司 | Low-temperature flash evaporation, concentration and crystallization integrated and zero-discharge process for treating desulfurization wastewater by concentrated solution backflow |
| CN217732726U (en) * | 2022-07-28 | 2022-11-04 | 温州市金榜轻工机械有限公司 | Multi-effect continuous energy-saving forced circulation crystallization evaporator |
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