CN216418338U - Energy-efficient continuous concentration separator - Google Patents
Energy-efficient continuous concentration separator Download PDFInfo
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- CN216418338U CN216418338U CN202122605781.5U CN202122605781U CN216418338U CN 216418338 U CN216418338 U CN 216418338U CN 202122605781 U CN202122605781 U CN 202122605781U CN 216418338 U CN216418338 U CN 216418338U
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Abstract
The utility model discloses an energy-efficient continuous concentration separator, including one-level evaporation system and the multistage evaporation and condensation system who is connected with one-level evaporation system, one-level evaporation system includes the concentrated evaporation reactor of one-level, and multistage evaporation and condensation system includes a plurality of evaporation and condensation systems that connect gradually, and evaporation and condensation system includes concentrated evaporation reactor, condensing equipment and reflux unit respectively with concentrated evaporation reactor return circuit connection. The utility model discloses the device is under vacuum condition, realizes the continuous separation and the extraction of light and heavy component in the concentrate, improves production efficiency greatly, has the characteristics of waste heat utilization rate height, energy multilevel utilization, saving energy consumption, realizes the multistage use of energy, and the heat medium use amount that significantly reduces improves energy utilization.
Description
Technical Field
The utility model belongs to the technical field of concentrated separation, concretely relates to energy-efficient continuous concentration separator.
Background
In the production process of petrochemical industry, fine chemical industry, medicine and other industries, the concentration and separation process of multi-component materials is often involved. Generally, modes such as multi-stage rectification, single-stage distillation and the like are often adopted, on one hand, the concentration and separation effect is poor, the efficiency is low, continuous extraction is difficult to achieve, on the other hand, concentrated solution heating needs a large amount of heat sources for heating, and after a primary heat source is often used, secondary energy cascade use is rarely performed, so that waste of a large amount of energy in the concentration process is caused, and the production cost in the production process of an enterprise is overhigh.
SUMMERY OF THE UTILITY MODEL
To the above-mentioned problem that exists among the prior art, the utility model aims to provide a high-efficient energy-saving continuous concentration separator solves the concentrate and at shortcomings such as concentrated separation process separation efficiency is low, the energy consumption is big, the separation effect is poor, realizes that the continuous separation of light and heavy component in the concentrate, adopts and the multistage use of energy, improves production efficiency and energy utilization greatly.
In order to achieve the purpose, the following technical scheme is provided:
the utility model provides an energy-efficient continuous concentrated separator, includes one-level evaporation system and the multistage evaporative condensation system who is connected with one-level evaporation system, and one-level evaporation system includes the concentrated evaporative reactor of one-level, and multistage evaporative condensation system includes a plurality of evaporative condensation systems that connect gradually, and evaporative condensation system includes concentrated evaporative reactor, condensing equipment and reflux unit, and condensing equipment and reflux unit are connected with concentrated evaporative reactor return circuit respectively.
Further, the multistage evaporative condensation system is second grade evaporative condensation system, concentrated evaporative reactor includes second grade concentration evaporative reactor and tertiary concentration evaporative reactor, condensing equipment includes second grade condensate holding vessel and tertiary condensate holding vessel, reflux unit includes second grade evaporate delivery pump and tertiary evaporate delivery pump, evaporative heater locates the top of evaporating pot and constitutes first grade concentration evaporative reactor respectively, second grade concentration evaporative reactor and tertiary concentration evaporative reactor, second grade condensate holding vessel and second grade evaporate delivery pump respectively with second grade concentration evaporative reactor return circuit connection, tertiary condensate holding vessel and tertiary evaporate delivery pump respectively with tertiary concentration evaporative reactor return circuit connection.
Furthermore, a gas discharge port at the upper end of an evaporation tank of the first-stage concentration evaporation reactor is connected with a side inlet of an evaporation heater of the second-stage concentration evaporation reactor through a gas discharge pipeline, a side discharge port of the evaporation heater is connected with a second-stage condensate collecting tank through a condensate outlet pipeline, a discharge port at the upper end of the second-stage condensate collecting tank is connected with the gas discharge pipeline in a converging manner through a pipeline, a discharge port at the top of the evaporation heater is connected with an outlet of a second-stage evaporated liquid delivery pump through a backflow pipeline, an inlet of the second-stage evaporated liquid delivery pump is connected with a discharge port at the lower end of the evaporation tank of the second-stage concentration evaporation reactor to form a loop, an outlet of the evaporation tank of the second-stage concentration evaporation reactor is connected with an inlet of the evaporation heater of the third-stage concentration evaporation reactor, and the connection modes of the third-stage condensate collecting tank and the third-stage evaporated liquid delivery pump are connected with the second-stage concentration evaporation reactor, The connection mode of the secondary condensate collecting tank and the secondary evaporated liquid delivery pump is the same.
Further, the second-stage evaporated liquid delivery pump is connected with the third-stage evaporated liquid delivery pump through a first pipeline.
Furthermore, the top of the evaporation heater of the third-stage concentration evaporation reactor is provided with another pipeline which is connected with the evaporation tank of the third-stage concentration evaporation reactor; the pipeline of the third-stage concentration evaporation reactor connected with the third-stage evaporated liquid conveying pump loop is provided with another branch for collecting a concentrated liquid product; the evaporation tank of the third-stage concentration evaporation reactor is provided with a pipeline for collecting light components.
Furthermore, the side outlet of the evaporating pot of the second-stage concentration and evaporation reactor is connected with the bottom inlet of the evaporating pot of the first-stage concentration and evaporation reactor.
Furthermore, the evaporation heater is a vertical tube type heat exchanger, and a thermometer, a pressure gauge and a liquid level gauge are arranged on evaporation tanks of the first-stage concentration evaporation reactor, the second-stage concentration evaporation reactor and the third-stage concentration evaporation reactor.
An efficient energy-saving continuous concentration and separation process comprises the following steps:
1) the final discharge port of the device is connected with a vacuum pump, the vacuum pump is started, the control valve of the gas pipeline is opened, and the control valves of other outlets are closed, so that the pressure in the whole device is in a negative pressure state;
2) opening a heating medium inlet and outlet pipeline of the first-stage concentration evaporation reactor, and starting feeding of a concentrated solution after the temperature is stable;
3) heating the concentrated solution under the action of a heating medium, wherein light component steam of the concentrated solution is gas, enters an evaporation heater of a secondary concentration evaporation reactor through a gas discharge pipeline to serve as a heating source, and after heat exchange, condensate is liquid and enters a secondary condensate collecting tank through a condensate outlet pipeline to be recovered; the concentrated solution at the bottom of the evaporation tank of the first-stage concentration evaporation reactor enters the evaporation tank of the second-stage concentration evaporation reactor through a pipeline;
4) one part of the concentrated solution at the bottom of the evaporation tank of the second-stage concentration evaporation reactor enters an evaporation heater of the second-stage concentration evaporation reactor through a second-stage evaporated solution delivery pump and a reflux pipeline, and the other part of the concentrated solution is sent into an evaporation heater of the third-stage concentration evaporation reactor;
5) after the material enters the third-stage concentration evaporation reactor, through the same circulating evaporation and condensation process as in the second-stage concentration evaporation reactor, part of the concentrated solution at the bottom of the evaporation tank of the third-stage concentration evaporation reactor enters the evaporation heater of the third-stage concentration evaporation reactor through the third-stage evaporation solution delivery pump for circulating heating, the other part of the concentrated solution flows out as a concentrated solution product, the light component in the evaporation heater is evaporated into gas, one part of the light component returns to the evaporation tank, and the other part of the light component is discharged and enters a subsequent vacuum system.
Further, the heat exchange area of an evaporation heater of the first-stage concentration evaporation reactor is 50-500 m2The addition amount of the concentrated solution is 20-100 m3H; the heat exchange area of an evaporation heater of the secondary concentration evaporation reactor is 100-800 m2To (c) to (d); the heat exchange area of an evaporation heater of the three-stage concentration evaporation reactor is 300-1500 m2In the meantime.
Furthermore, an evaporation tank of the primary concentration evaporation reactor is a vertical double-ellipse end enclosure container with the volume of 10-30 m3To (c) to (d); the evaporating pot of the second-stage concentration evaporation reactor is a vertical double-ellipse end enclosure container with the volume of 20-80 m3To (c) to (d); the evaporating pot of the three-stage concentration evaporation reactor is a vertical double-ellipse end enclosure container with the volume of 50-150 m3In the meantime.
Furthermore, the volume of the secondary condensate collecting tank is 5-20 m3The volume of the three-stage condensate collecting tank is 10-30 m3In the meantime.
Further, the flow rates of the second-stage evaporated liquid conveying pump and the third-stage evaporated liquid conveying pump are 50-150 m3Is between/h.
The beneficial effects of the utility model reside in that: through with above-mentioned device, can effectively solve the concentrate and at the shortcoming such as concentration separation process separation efficiency is low, the energy consumption is big, separation effect is poor, realizes the multistage use of continuous separation, extraction and the energy of light and heavy component in the concentrate, improves production efficiency and energy utilization greatly.
Drawings
FIG. 1 is a schematic flow chart of the present invention;
in the figure: 1. a first-stage concentration evaporation reactor; 2. a second-stage concentration evaporation reactor; 3. a third-stage concentration evaporation reactor; 4. a secondary condensate collection tank; 5. a third-stage condensate collection tank; 6. a second-stage evaporated liquid delivery pump; 7. a third-stage evaporated liquid delivery pump; 8. an evaporation heater; 9. an evaporator tank; 10. a gas discharge conduit; 11. a condensate outlet conduit; 12. a return line; 13. a first conduit.
Detailed Description
The invention will be further described with reference to the drawings and examples, but the scope of the invention is not limited thereto.
As shown in figure 1, the multi-stage evaporation and condensation system in the figure is a two-stage evaporation and condensation system, and is a high-efficiency energy-saving continuous concentration and separation device, which comprises a first-stage concentration evaporation reactor 1, a second-stage concentration evaporation reactor 2, a third-stage concentration evaporation reactor 3, a second-stage condensate collecting tank 4, a third-stage condensate collecting tank 5, a second-stage evaporant conveying pump 6 and a third-stage evaporant conveying pump 7, wherein an evaporation heater 8 is arranged at the top of an evaporation tank 9 to respectively form the first-stage concentration evaporation reactor 1, the second-stage concentration evaporation reactor 2 and the third-stage concentration evaporation reactor 3, a side outlet of the evaporation tank 9 of the first-stage concentration evaporation reactor 1 is connected with a side inlet of the evaporation heater 8 of the second-stage concentration evaporation reactor 2 through a gas discharge pipeline 10, a side outlet of the evaporation heater 8 of the second-stage concentration evaporation reactor 2 is connected with the second-stage condensate collecting tank 4 through a condensate outlet pipeline 11, the top outlet of the secondary condensate collecting tank 4 is converged with the gas discharging pipeline 10 through a pipeline, and the bottom of the secondary condensate collecting tank 4 is provided with a cold component outlet; the top of an evaporation heater 8 of the second-stage concentration evaporation reactor 2 is connected with a second-stage evaporated liquid delivery pump 6 through a backflow pipeline 12, a feed inlet of the second-stage evaporated liquid delivery pump 6 is connected with a bottom outlet of an evaporation tank 9 of the second-stage concentration evaporation reactor 2 to form a loop, a lateral line inlet of the evaporation tank 9 of the second-stage concentration evaporation reactor 2 is connected with the bottom of the evaporation tank 9 of the first-stage concentration evaporation reactor 1, a lateral line outlet of the evaporation tank 9 of the second-stage concentration evaporation reactor 2 is connected with a lateral line of an evaporation heater 8 of the third-stage concentration evaporation reactor 3, a third-stage condensate collecting tank 5, a third-stage evaporated liquid delivery pump 7 and the second-stage concentration evaporation reactor 2, the connection mode of the secondary condensate collecting tank 4 and the secondary evaporated liquid conveying pump 6 is the same, and the top of an evaporation heater 8 of the tertiary concentration evaporation reactor 3 is provided with another pipeline connected with an evaporation tank 9 of the tertiary concentration evaporation reactor 3; the pipeline of the third-stage concentration evaporation reactor 3 connected with the loop of the third-stage evaporated liquid conveying pump 7 is provided with another branch for collecting the concentrated liquid product; the evaporation tank 9 of the third-stage concentration evaporation reactor 3 is provided with a pipeline for collecting light components; the second-stage evaporated liquid delivery pump 6 is connected with the third-stage evaporated liquid delivery pump 7 through a first pipeline 13, and a thermometer, a pressure gauge and a liquid level gauge are arranged on the evaporation tanks 9 of the first-stage concentration evaporation reactor 1, the second-stage concentration evaporation reactor 2 and the third-stage concentration evaporation reactor 3.
Examples
Separating toluene and concentrate (boiling point greater than 170 deg.C) by high-efficiency energy-saving continuous concentration and separation device and concentration process, wherein the component is toluene inlet mass concentration of 60%, and total concentrate feed flow is 50m3/h。
The vacuum degree of the device is controlled between-0.02 to-0.05 Mpa, the evaporation heater 8 of the first-stage concentration evaporation reactor 1 is a vertical tubular heat exchanger made of carbon steel and the like, and the heat exchange area is 150m2The corresponding evaporating pot 9 vertical double-ellipse end socket container is made of carbon steel and has a volume of 15m3The liquid level is controlled at 50% of the volume, and the temperature is controlled at 105 ℃; the evaporation heater 8 of the second-stage concentration evaporation reactor 2 is a vertical tubular heat exchanger made of carbon steel and the like, and the heat exchange area is 300m2The corresponding evaporating pot 9 vertical double-ellipse end socket container is made of carbon steel and has the volume of 40m3The liquid level is controlled to be 55 percent of the volume, the temperature is controlled to be 95 ℃, the secondary condensate collecting tank 4 is a vertical double-ellipse end socket container made of carbon steel and having a volume of 10m3The second-stage evaporated liquid delivery pump 6 is a shield pump made of carbon steel and has a flow rate of 80m3H; the evaporation heater 8 of the three-stage concentration evaporation reactor 3 is a vertical tubular heat exchanger made of carbon steel and the like, and the heat exchange area is 800m2The corresponding evaporating pot 9 vertical double-ellipse end socket container is made of carbon steel and has the volume of 100m3The liquid level is controlled to be 70% of the volume, the temperature is controlled to be 80 ℃, and the tertiary condensate collecting tank 5 is a vertical double-ellipse end socket container made of carbon steel and having a volume of 20m3The three-stage evaporation liquid delivery pump 7 is a shield pump made of carbon steel and has a flow rate of 100m3/h。
The final discharge port of the device is connected with a vacuum pump, the vacuum pump is started, the control valve of the gas pipeline is opened, and the control valves of other outlets are closed, so that the pressure in the whole device is in a negative pressure state; opening a heating medium inlet and outlet pipeline of the first-stage concentration evaporation reactor 1, and after the temperature is stable, feeding concentrated solution; the concentrated solution is heated under the action of a heating medium, the light component steam of the concentrated solution is gas, the gas enters an evaporation heater 8 of the secondary concentration evaporation reactor 2 through a gas discharge pipeline 10 and is used as a heating source, after heat exchange, the condensate is liquid and enters a secondary condensate collecting tank 4 through a condensate outlet pipeline 11 for recovery; the concentrated solution at the bottom of the evaporation tank 9 of the first-stage concentration evaporation reactor 1 enters the evaporation tank 9 of the second-stage concentration evaporation reactor 2 through a pipeline; one part of the concentrated solution at the bottom of the evaporation tank 9 of the second-stage concentration evaporation reactor 2 enters the evaporation heater 8 of the second-stage concentration evaporation reactor 2 through a second-stage evaporated solution delivery pump 6 and a return pipeline 12, and the other part of the concentrated solution is sent into the evaporation heater 8 of the third-stage concentration evaporation reactor 3;
after the material gets into tertiary concentration evaporation reactor 3, through the cyclic evaporation condensation process the same in secondary concentration evaporation reactor 2, after the partly concentrated solution of evaporating pot 9 bottom of tertiary concentration evaporation reactor 3 got into tertiary concentration evaporation reactor 3's evaporation heater 8 through tertiary evaporant delivery pump 7 in the circulation heating, another part outflow was as the concentrated solution product, and the evaporation of the light component in the evaporation heater 8 is gaseous, and partly returns in evaporating pot 9, and partly ejection of compact gets into in the follow-up vacuum system.
After the materials are circularly concentrated, evaporated and condensed, the ratio of toluene in the concentrated solution at the outlet of the three-stage condensate collecting tank 5 is 1.5%, and the toluene removal efficiency is 99%.
Claims (9)
1. The utility model provides a high-efficient energy-conserving continuous concentration separator, its characterized in that, includes one-level evaporation system and the multistage evaporative condensation system who is connected with one-level evaporation system, one-level evaporation system includes one-level concentrated evaporative reactor (1), and multistage evaporative condensation system includes a plurality of evaporative condensation systems that connect gradually, and evaporative condensation system includes concentrated evaporative reactor, condensing equipment and reflux unit, and condensing equipment and reflux unit are connected with concentrated evaporative reactor return circuit respectively.
2. The efficient energy-saving continuous concentration and separation device as claimed in claim 1, wherein the multistage evaporation and condensation system is a two-stage evaporation and condensation system, the concentration and evaporation reactor comprises a two-stage concentration evaporation reactor (2) and a three-stage concentration evaporation reactor (3), the condensation device comprises a two-stage condensate collection tank (4) and a three-stage condensate collection tank (5), the reflux device comprises a two-stage evaporated liquid delivery pump (6) and a three-stage evaporated liquid delivery pump (7), the evaporation heater (8) is arranged at the top of the evaporation tank (9) to respectively form the one-stage concentration evaporation reactor (1), the two-stage concentration evaporation reactor (2) and the three-stage concentration evaporation reactor (3), the two-stage condensate collection tank (4) and the two-stage evaporated liquid delivery pump (6) are respectively connected with the two-stage concentration evaporation reactor (2) in a loop, and the three-stage condensate collection tank (5) and the three-stage evaporated liquid delivery pump (7) are respectively connected with the concentration evaporation reactor (3) in a loop And (6) connecting the paths.
3. The efficient energy-saving continuous concentration and separation device as claimed in claim 2, wherein a gas outlet at the upper end of an evaporation tank (9) of the primary concentration and evaporation reactor (1) is connected with a side inlet of an evaporation heater (8) of the secondary concentration and evaporation reactor (2) through a gas outlet pipeline (10), a side outlet of the evaporation heater (8) is connected with a secondary condensate collecting tank (4) through a condensate outlet pipeline (11), a discharge outlet at the upper end of the secondary condensate collecting tank (4) is connected with the gas outlet pipeline (10) in a converging manner through a pipeline, a discharge outlet at the top of the evaporation heater (8) is connected with an outlet of a secondary evaporated liquid delivery pump (6) through a return pipeline (12), an inlet of the secondary evaporated liquid delivery pump (6) is connected with a discharge outlet at the lower end of the evaporation tank (9) of the secondary concentration and evaporation reactor (2), a loop is formed, the outlet of an evaporation tank (9) of the second-stage concentration evaporation reactor (2) is connected with the inlet of an evaporation heater (8) of the third-stage concentration evaporation reactor (3), and the connection mode of the third-stage concentration evaporation reactor (3), the third-stage condensate collecting tank (5) and the third-stage evaporated liquid delivery pump (7) is the same as that of the second-stage concentration evaporation reactor (2), the second-stage condensate collecting tank (4) and the second-stage evaporated liquid delivery pump (6).
4. A high efficiency energy saving continuous concentration separation device according to claim 3, characterized in that the second evaporation liquid transfer pump (6) is connected with the third evaporation liquid transfer pump (7) through the first pipe (13).
5. A high-efficiency energy-saving continuous concentration and separation device as claimed in claim 3, wherein the top of the evaporation heater (8) of the three-stage concentration evaporation reactor (3) is provided with another pipeline connected with the evaporation tank (9) of the three-stage concentration evaporation reactor (3).
6. A high efficiency energy saving continuous concentration separation device as claimed in claim 3, wherein the side outlet of the evaporation tank (9) of the second concentration evaporation reactor (2) is connected with the bottom inlet of the evaporation tank (9) of the first concentration evaporation reactor (1).
7. An energy-efficient continuous concentrating and separating device as claimed in claim 2, wherein the said evaporating heater (8) is a vertical tubular heat exchanger.
8. A high-efficiency energy-saving continuous concentration and separation device as claimed in claim 3, wherein the pipeline connecting the loop of the three-stage concentration evaporation reactor (3) and the three-stage evaporated liquid delivery pump (7) is provided with another branch for collecting the concentrated liquid product; an evaporation tank (9) of the three-stage concentration evaporation reactor (3) is provided with a pipeline for collecting light components.
9. An efficient energy-saving continuous concentration and separation device as claimed in claim 2, characterized in that the evaporation tanks (9) of the first-stage concentration evaporation reactor (1), the second-stage concentration evaporation reactor (2) and the third-stage concentration evaporation reactor (3) are all provided with a thermometer, a pressure gauge and a liquid level gauge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202122605781.5U CN216418338U (en) | 2021-10-28 | 2021-10-28 | Energy-efficient continuous concentration separator |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202122605781.5U CN216418338U (en) | 2021-10-28 | 2021-10-28 | Energy-efficient continuous concentration separator |
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| CN216418338U true CN216418338U (en) | 2022-05-03 |
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