CN211752554U - Falling film evaporation tower - Google Patents
Falling film evaporation tower Download PDFInfo
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- CN211752554U CN211752554U CN201922084327.2U CN201922084327U CN211752554U CN 211752554 U CN211752554 U CN 211752554U CN 201922084327 U CN201922084327 U CN 201922084327U CN 211752554 U CN211752554 U CN 211752554U
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Abstract
The utility model discloses a falling liquid film evaporation tower, include: the tower body and three partition plates with the same structure; the tower body is of a hollow structure, three partition plates are respectively fixed in the tower body at equal intervals, the utility model relates to the technical field of liquid evaporation concentration, liquid materials are extracted through a feeding pump, the liquid materials enter a heat exchange evaporator I after being distributed and processed by a liquid distributor, and then are subjected to heat exchange with air with the temperature raised by a heating pump, so that the liquid materials are heated and evaporated by themselves, after gas-liquid separation is carried out through a separator I, the liquid materials sequentially pass through a heat exchange evaporator II and a heat exchange evaporator III downwards by virtue of self-flowing gravity, and finally, after the temperature is reduced through condenser condensation, the liquid materials can be discharged through a condensing pump; the gas in the heating pump can uniformly flow back to the heating pump to heat the water vapor with certain temperature in the heating pump; the design can reduce energy consumption, form recycling, and improve the concentration of the liquid by three times of evaporation separation.
Description
Technical Field
The utility model relates to a liquid evaporative concentration technical field specifically is a falling liquid film evaporation tower.
Background
Falling film evaporation can be continuously operated under the condition of vacuum low temperature, has the characteristics of high evaporation capacity, energy conservation, consumption reduction, low operation cost and capability of ensuring the invariability of materials in the evaporation process, is widely used for evaporation and concentration of water or organic solvent solutions in the industries of medicine, food, chemical industry, light industry and the like, can be widely used for waste liquid treatment in the industries, and is particularly suitable for thermosensitive materials;
at present, a falling film evaporator is characterized in that feed liquid is added from an upper pipe box of a heating chamber, is uniformly distributed into each heat exchange pipe through a liquid distribution and film forming device, and flows from top to bottom in a uniform film shape under the action of gravity, vacuum induction and airflow; in the flowing process, the shell-pass heating medium is heated and vaporized, the generated steam and the liquid phase enter a separation chamber of an evaporator together, the steam and the liquid are fully separated, the steam enters a condenser for condensation (single-effect operation) or enters a next-effect evaporator as the heating medium, so that the multi-effect operation is realized, and the liquid phase is discharged from the separation chamber; however, the concentration of the liquid obtained after concentration by the falling film evaporator is not very high, and the heat energy utilization efficiency of the heating medium is not very high, so a falling film evaporation tower is designed.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a falling liquid film evaporation tower to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: a falling film evaporation column comprising: the tower body and three partition plates with the same structure; the tower body is of a hollow structure, the three partition plates are respectively fixed in the tower body at equal intervals and are a first partition plate, a second partition plate and a third partition plate from top to bottom, and a feeding distribution structure, a multi-effect heat exchange structure and a cooling discharge structure are arranged in the tower body;
pan feeding distribution structure includes: the device comprises a feeding pump, a feeding pipe, a flow meter and a liquid distributor;
the feeding pump is fixedly arranged on the upper wall surface of the first partition plate and positioned at the left end in the tower body, one end of the feeding pipe is connected to the feeding end of the feeding pump, the other end of the feeding pipe is fixedly penetrated through the left side wall of the tower body, the flowmeter is fixedly arranged on the feeding pipe, and the liquid distributor is fixedly arranged on the upper wall surface of the first partition plate, positioned at the rear side of the feeding pump and connected with a pipeline at the feeding end of the feeding pump;
the multiple-effect heat transfer structure includes: the system comprises a heat exchange evaporator I, a separator I, a heat exchange evaporator II, a separator II, a heat exchange evaporator III, a separator III, a heating pump, a three-way pipe A, a three-way pipe B and a four-way pipe;
the first heat exchange evaporator is fixedly arranged on the upper wall surface of the first partition plate and positioned at the right side of the feeding pump, a feeding port of the first heat exchange evaporator is connected with a liquid distributor pipeline, the first separator is fixedly arranged on the upper wall surface of the first partition plate and positioned at the right side of the first heat exchange evaporator, a feeding port of the first heat exchange evaporator is connected with a discharging port pipeline of the first heat exchange evaporator, the second heat exchange evaporator is fixedly arranged on the upper wall surface of the second partition plate, a feeding port of the second heat exchange evaporator is connected with a discharging port pipeline of the separator, an air inlet of the second separator is connected with an air outlet pipeline of the separator, the second separator is fixedly arranged on the upper wall surface of the second partition plate and positioned at the right side of the second heat exchange evaporator, a feeding port of the second heat exchange evaporator is connected with a discharging port pipeline of the second heat exchange evaporator, the third heat exchange evaporator is fixedly arranged on the upper wall surface of the third partition plate, the third separator is fixedly arranged on the upper wall surface of the third partition plate and positioned on the right side of the third heat exchange evaporator, a feeding port of the third separator is connected with a third discharge port pipeline of the heat exchange evaporator, the heating pump is fixedly arranged on the upper wall surface of the first partition plate and positioned at the right end of the first partition plate, an air outlet of the third separator is connected with an air inlet pipeline of the first heat exchange evaporator, one end of the three-way pipe A is connected with an inlet end of the heating pump, one end of the three-way pipe B is connected with a pipeline of the three-way pipe A, one end of the four-way pipe B is connected with the pipeline of the other end of the three-.
Preferably, the cooling discharge structure includes: a condenser, a condensing pump and a liquid discharge pipe;
the condenser is fixedly arranged on the inner lower wall of the tower body and positioned on the right side of the central line, a feeding port of the condenser is connected with a liquid outlet end pipeline of the separator, the condensate pump is fixedly arranged on the inner lower wall of the tower body and positioned on the left side of the central line, a liquid inlet end of the condensate pump is connected with a liquid outlet end pipeline of the condenser, one end of the liquid discharge pipe is connected to the liquid outlet end of the condensate pump, and the other end of the liquid discharge pipe is fixedly embedded in the left side wall of the tower body.
Preferably, the three-way pipe A, the three-way pipe B and the four-way pipe are all made of stainless steel structure and corrosion-resistant and heat-resistant pipelines.
Preferably, the first heat exchange evaporator, the second heat exchange evaporator and the third heat exchange evaporator are all assembled by evaporators and heat exchangers with the same structure.
Preferably, the first partition plate is disposed in a left-right direction.
Compared with the prior art, the beneficial effects of the utility model are that: the falling film evaporation tower is characterized in that a tower body is layered and installed in layers through a partition plate; liquid materials are extracted through a feeding pump, filler efficiency is distributed and processed through a liquid distributor and then enter a first heat exchange evaporator, heat exchange is carried out between the first heat exchange evaporator and air with the temperature raised through a heating pump, the liquid materials are heated and evaporated, after gas and liquid are separated through a first separator, the liquid materials sequentially pass through a second heat exchange evaporator and a third heat exchange evaporator downwards through self flowing gravity, and finally the liquid materials are condensed and reduced in temperature through a condenser and can be discharged through a condensing pump; the gas in the heating pump can uniformly flow back to the heating pump to heat the water vapor with certain temperature in the heating pump; the design can reduce energy consumption, form recycling, and improve the concentration of the liquid by three times of evaporation separation.
Drawings
FIG. 1 is a schematic sectional view of the front view of the present invention;
fig. 2 is a schematic diagram of the schematic block diagram structure of the present invention.
In the figure: 1. the system comprises a tower body, 2, a partition plate, 3, a feeding pump, 4, a feeding pipe, 5, a flow meter, 6, a liquid distributor, 7, a first heat exchange evaporator, 8, a first separator, 9, a second heat exchange evaporator, 10, a second separator, 11, a third heat exchange evaporator, 12, a third separator, 13, a heating pump, 14, three-way pipes A, 15, three-way pipes B, 16, a four-way pipe, 17, a condenser, 18, a condensing pump, 19 and a liquid discharge pipe.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-2, the present invention provides a technical solution: a falling film evaporation column comprising: the tower body 1 and three partition plates 2 with the same structure; the tower body 1 is of a hollow structure, three partition plates 2 are respectively fixed in the tower body 1 at equal intervals and are a first partition plate 2, a second partition plate 2 and a third partition plate 2 from top to bottom, the first partition plate 2 is arranged along the left and right direction, and a feeding distribution structure, a multi-effect heat exchange structure and a cooling discharge structure are arranged in the tower body 1; pan feeding distribution structure includes: a feeding pump 3, a feeding pipe 4, a flow meter 5 and a liquid distributor 6; the feeding pump 3 is fixedly arranged on the upper wall surface of the first partition plate 2 and is positioned at the left end in the tower body 1, one end of a feeding pipe 4 is connected to the feeding end of the feeding pump 3, the other end of the feeding pipe is fixedly penetrated through the left side wall of the tower body 1, the flowmeter 5 is fixedly arranged on the feeding pipe 4, and the liquid distributor 6 is fixedly arranged on the upper wall surface of the first partition plate 2, is positioned at the rear side of the feeding pump 3 and is connected with a discharge end pipeline of the feeding pump 3; materials can be dispersedly conveyed through the feeding structure; multiple-effect heat transfer structure includes: the heat exchange evaporator comprises a first heat exchange evaporator 7, a first separator 8, a second heat exchange evaporator 9, a second separator 10, a third heat exchange evaporator 11, a third separator 12, a heating pump 13, a three-way pipe A14, a three-way pipe B15 and a four-way pipe 16; a first heat exchange evaporator 7 is fixedly arranged on the upper wall surface of the first clapboard 2 and is positioned at the right side of the feeding pump 3, a feeding port of the first heat exchange evaporator is connected with a liquid distributor 6 through a pipeline, a first separator 8 is fixedly arranged on the upper wall surface of the first clapboard 2 and is positioned at the right side of the first heat exchange evaporator 7, a feeding port of the first heat exchange evaporator is connected with a discharging port of the first heat exchange evaporator 7 through a pipeline, a second heat exchange evaporator 9 is fixedly arranged on the upper wall surface of the second clapboard 2, a feeding port of the second heat exchange evaporator is connected with a liquid outlet of the first separator 8 through a pipeline, an air inlet of the second separator 10 is connected with an air outlet of the first separator 8 through a pipeline, a second separator 10 is fixedly arranged on the upper wall surface of the second clapboard 2 and is positioned at the right side of the second heat exchange evaporator 9, a feeding port of the second heat exchange evaporator is connected with a discharging port of the second separator 9 through a pipeline, a third heat, the third separator 12 is fixedly arranged on the upper wall surface of the third partition plate 2 and is positioned on the right side of the third heat exchange evaporator 11, a feeding port of the third separator is connected with a discharging port pipeline of the third heat exchange evaporator 11, the heating pump 13 is fixedly arranged on the upper wall surface of the first partition plate 2 and is positioned at the right end, an air outlet of the heating pump is connected with an air inlet pipeline of the first heat exchange evaporator 7, one end of the tee pipe A14 is connected with an inlet end of the heating pump 13, one end of the tee pipe B15 is connected with a pipeline of the tee pipe A14, one end of the tee pipe B15 is connected with an air outlet pipeline of the third separator 12, one end of the four-way pipe 16 is connected with a pipeline of the other end of the tee pipe B15, and the other three ends; through the multiple-effect heat exchange structure, multiple times of evaporation can be carried out to improve the liquid concentration.
The following electric devices have the following types and functions:
a feeding pump: it is prior art, as long as the pan feeding pump that is applicable to this scheme all can use.
A separator: it is prior art, as long as the separator that is applicable to this scheme all can use.
A condensation pump: it is prior art, as long as the condensate pump that is applicable to this scheme all can use.
A condenser: it is prior art, as long as the condenser that is applicable to this scheme all can use.
Preferably, the cooling discharge structure further includes: a condenser 17, a condensate pump 18, and a drain pipe 19;
the condenser 17 is fixedly arranged on the inner lower wall of the tower body 1 and positioned on the right side of the central line, a feeding port of the condenser 17 is connected with a liquid outlet end pipeline of the separator III 12, the condensate pump 18 is fixedly arranged on the inner lower wall of the tower body 1 and positioned on the left side of the central line, a liquid inlet end of the condensate pump is connected with a liquid outlet end pipeline of the condenser 17, one end of the liquid outlet pipe 19 is connected with the liquid outlet end of the condensate pump 18, and the other end of the liquid outlet pipe is fixedly embedded in the left side wall of.
Preferably, the three-way pipe a14, the three-way pipe B15 and the four-way pipe 16 are made of stainless steel, corrosion-resistant and heat-resistant pipelines, so that the conveying is facilitated.
Preferably, the first heat exchange evaporator 7, the second heat exchange evaporator 9 and the third heat exchange evaporator 11 are all assembled by evaporators and heat exchangers with the same structure, so that the installation is convenient and the cost is saved.
All the electrical components in the present application are connected with the power supply adapted to the electrical components through the wires, and an appropriate controller should be selected according to actual conditions to meet the control requirements, and specific connection and control sequences should be obtained.
Example (b): as can be seen from the attached figures 1-2 of the specification, firstly, the material can be extracted through a material inlet pipe 4 by controlling the driving of a material inlet pump 3 on a baffle plate 2 in a tower body 1, the material passes through a flow meter 5 and then displays the flow, enters a liquid distributor 6 for distribution treatment and then enters a heat exchange evaporator I7, and exchanges heat with air which is converted into high temperature at low temperature and is extracted through a heating pump 13, so that the liquid material is heated and evaporated by itself, after gas-liquid separation is carried out through a separator I8, the liquid passes through a heat exchange evaporator II 9 downwards by virtue of self-flowing gravity and is evaporated, after separation is carried out through a separator II 10, the liquid enters a heat exchange evaporator III 11 again for evaporation, after separation is carried out through a separator III 12, the liquid is discharged into a condenser 17 for condensation and temperature reduction, and then the liquid can be discharged; the gas after each evaporation passes through the four-way pipe 16 and then is recycled into the heating pump 13 through the three-way pipe A14 together with the separated gas through the three-way pipe B15 for cyclic utilization, so that the energy consumption is reduced.
In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation; also, unless otherwise expressly stated or limited, the terms "fixedly disposed," "fixedly welded," "conduit-connected," "fixedly embedded," "connected," and the like are to be construed broadly, e.g., as fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. A falling film evaporation column comprising: the tower body (1) and three partition plates (2) with the same structure; the heat exchange tower is characterized in that the tower body (1) is of a hollow structure, three partition plates (2) are respectively fixed in the tower body (1) at equal intervals and are a first partition plate (2), a second partition plate (2) and a third partition plate (2) from top to bottom, and a feeding distribution structure, a multiple-effect heat exchange structure and a cooling discharge structure are arranged in the tower body (1);
pan feeding distribution structure includes: the device comprises a feeding pump (3), a feeding pipe (4), a flow meter (5) and a liquid distributor (6);
the feeding pump (3) is fixedly arranged on the upper wall surface of the first partition plate (2) and is positioned at the left end in the tower body (1), one end of the feeding pipe (4) is connected to the feeding end of the feeding pump (3), the other end of the feeding pipe is fixedly penetrated in the left side wall of the tower body (1), the flowmeter (5) is fixedly arranged on the feeding pipe (4), and the liquid distributor (6) is fixedly arranged on the upper wall surface of the first partition plate (2), is positioned at the rear side of the feeding pump (3) and is connected with a discharge end pipeline of the feeding pump (3);
the multiple-effect heat transfer structure includes: the system comprises a heat exchange evaporator I (7), a separator I (8), a heat exchange evaporator II (9), a separator II (10), a heat exchange evaporator III (11), a separator III (12), a heating pump (13), a three-way pipe A (14), a three-way pipe B (15) and a four-way pipe (16);
the first heat exchange evaporator (7) is fixedly arranged on the upper wall surface of the first partition plate (2) and is positioned on the right side of the feeding pump (3), a feeding port of the first heat exchange evaporator is connected with a liquid distributor (6) through a pipeline, the first separator (8) is fixedly arranged on the upper wall surface of the first partition plate (2) and is positioned on the right side of the first heat exchange evaporator (7), a feeding port of the first heat exchange evaporator is connected with a discharging port of the first heat exchange evaporator (7) through a pipeline, the second heat exchange evaporator (9) is fixedly arranged on the upper wall surface of the second partition plate (2), a feeding port of the first heat exchange evaporator is connected with a liquid outlet of the first separator (8) through a pipeline, an air inlet of the first separator is connected with an air outlet of the first separator (8) through a pipeline, the second separator (10) is fixedly arranged on the upper wall surface of the second partition plate (2) and is positioned on the right side of the second heat exchange, the third heat exchange evaporator (11) is fixedly arranged on the upper wall surface of the third partition plate (2), a feed inlet of the third heat exchange evaporator is connected with a liquid outlet end pipeline of the second separator (10), an air inlet of the third heat exchange evaporator is connected with an air outlet pipeline of the second separator (10), the third separator (12) is fixedly arranged on the upper wall surface of the third partition plate (2) and is positioned on the right side of the third heat exchange evaporator (11), a feed inlet of the third heat exchange evaporator is connected with a discharge outlet pipeline of the third heat exchange evaporator (11), the heating pump (13) is fixedly arranged on the upper wall surface of the first partition plate (2) and is positioned at the right end, an air outlet of the third heat exchange evaporator is connected with an air inlet pipeline of the first heat exchange evaporator (7), one end of the three-way pipe A (14) is connected with the heating pump (13), one end of the three-way pipe B (15) is connected with a three-way pipe A (14, one end of the four-way pipe (16) is connected with the pipeline at the other end of the three-way pipe B (15), and the other three ends of the four-way pipe are respectively connected with the pipelines at the air outlet ends of the heat exchange evaporator I (7), the heat exchange evaporator II (9) and the heat exchange evaporator III (11).
2. A falling film evaporation column according to claim 1, wherein: the cooling discharge structure includes: a condenser (17), a condensing pump (18) and a liquid discharge pipe (19);
the condenser (17) is fixedly arranged on the inner lower wall of the tower body (1) and positioned on the right side of the central line, a feeding port of the condenser is connected with a liquid outlet end pipeline of the separator III (12), the condensate pump (18) is fixedly arranged on the inner lower wall of the tower body (1) and positioned on the left side of the central line, a liquid inlet end of the condensate pump is connected with a liquid outlet end pipeline of the condenser (17), one end of the liquid outlet pipe (19) is connected to the liquid outlet end of the condensate pump (18), and the other end of the liquid outlet pipe is fixedly embedded in the left side wall of the tower body (1).
3. A falling film evaporation column according to claim 1, wherein: the three-way pipe A (14), the three-way pipe B (15) and the four-way pipe (16) are all made of stainless steel structures and corrosion-resistant and heat-resistant pipelines.
4. A falling film evaporation column according to claim 1, wherein: the heat exchange evaporator I (7), the heat exchange evaporator II (9) and the heat exchange evaporator III (11) are all formed by assembling evaporators and heat exchangers with the same structure.
5. A falling film evaporation column according to claim 1, wherein: the first partition plate (2) is arranged along the left-right direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922084327.2U CN211752554U (en) | 2019-11-27 | 2019-11-27 | Falling film evaporation tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922084327.2U CN211752554U (en) | 2019-11-27 | 2019-11-27 | Falling film evaporation tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211752554U true CN211752554U (en) | 2020-10-27 |
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ID=72961947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922084327.2U Active CN211752554U (en) | 2019-11-27 | 2019-11-27 | Falling film evaporation tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211752554U (en) |
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2019
- 2019-11-27 CN CN201922084327.2U patent/CN211752554U/en active Active
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