CN211836369U - Waste heat utilization's distillation plant of waste heat utilization - Google Patents
Waste heat utilization's distillation plant of waste heat utilization Download PDFInfo
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- CN211836369U CN211836369U CN202020205194.XU CN202020205194U CN211836369U CN 211836369 U CN211836369 U CN 211836369U CN 202020205194 U CN202020205194 U CN 202020205194U CN 211836369 U CN211836369 U CN 211836369U
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Abstract
The utility model relates to a chemical industry equipment's field particularly, relates to a waste heat utilization's distillation plant, including retort, air heater and heat exchanger. An air guide gap is arranged in the tank wall of the distillation tank. The inner wall of the distillation tank is also provided with a plurality of air nozzles communicated with the air guide gaps. The air injection directions of the air nozzles all point to the inside of the distillation retort. The distillation retort is also provided with an electric heating pipe. The distillation tank is also provided with a steam outlet connected to the heat exchanger. The air inlet of the air heater is also connected with the heat exchanger. The air outlet of the air heater is connected with the air guide gap. When in use, the electric heating pipe heats the raw materials in the distillation tank. The hot air of the hot air blower enters the inner part of the tank wall of the distillation tank and is rapidly sprayed out from the air nozzle. The flowing of the airflow drives the liquid in the distillation tank to roll, and the liquid in the distillation tank is uniformly heated. Meanwhile, the hot air flow heats the inner wall of the distillation retort, so that the materials are effectively prevented from reaching the retort wall of the distillation retort after being evaporated and being precooled and condensed. The steam preheats the air at the heat exchanger, and the energy is saved.
Description
Technical Field
The utility model relates to a chemical industry equipment's field particularly, relates to a waste heat utilization's distillation plant.
Background
The distillation still is a common device used in chemical production. The distillation kettle is used for heating the raw materials in the kettle, so that substances with lower boiling points in the raw materials are evaporated and separated. In the distillation process, the raw materials in the distillation kettle need to be heated. The uniformity of heating affects the effectiveness of the distillation.
The uneven problem of heating is avoided through the mode of stirring to prior art's stills, but its agitated vessel structure is complicated, and the cost is high to liquid in it adopts traditional stirring mode to stir the stills. Meanwhile, after the raw material is heated and evaporated, it may be liquefied at the top wall of the distillation still and flow back into the distillation still again.
In addition, the steam generated after distillation needs to be condensed into a liquid product. A large amount of heat energy can be released in the condensation process, and the heat energy cannot be well utilized, so that waste is caused.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a waste heat utilization's distillation plant, it can avoid heating inequality, its simple structure simultaneously, and is with low costs, can also utilize waste heat, the energy saving.
The embodiment of the utility model is realized like this:
a distillation plant of waste heat utilization, characterized by: comprises a distillation retort, a hot air blower and a heat exchanger; an air guide gap is arranged in the wall of the distillation tank; the inner wall of the distillation tank is also provided with a plurality of air nozzles communicated with the air guide gaps; the air injection directions of the air injection nozzles all point to the inside of the distillation tank; an electric heating pipe is further arranged inside the wall of the distillation retort; the distillation tank is also provided with a steam outlet; the air inlet and the steam outlet of the air heater are both connected to the heat exchanger, so that air enters the air heater after heat exchange with steam;
the air outlet of the air heater is connected with the air guide gap.
Further, a liquid level meter is arranged at the bottom of the distillation tank; the liquid level meter is electrically connected with the air heater.
Further, the hot air blower comprises an air compressor and an electric heating plate; the electric heating wire is arranged in the electric heating tray; the air outlet end of the air compressor is connected to the electric heating disc; the air outlet end of the electric heating disc is connected to the air guide gap.
Further, each air nozzle is provided with an electromagnetic valve.
Further, the air guide gap is tubular; the tubular air guide gap extends from the top of the distillation tank to the bottom of the distillation tank in a spiral shape; and the air outlet of the air heater is connected to the top end of the air guide gap.
Further, a plurality of air nozzles are uniformly distributed on the bottom wall of the distillation tank; the plurality of air nozzles are connected to the bottom end of the air guide gap; the spraying directions of the plurality of air nozzles are all vertically upward.
Further, the outer wall of the distillation tank is provided with a heat insulation layer.
Further, the heat exchanger is a plate heat exchanger; the plate heat exchanger comprises a first channel and a second channel; an air inlet of the air heater is connected with one end of the first channel, and the other end of the first channel is an air inlet; the steam outlet is connected with one end of the second channel; the other end of the second channel is a discharge hole.
The utility model has the advantages that:
when in use, the raw material liquid is added into the distillation tank. Then the raw material in the distillation tank is heated by an electrothermal tube. In the heating process, the hot air blower is turned on, so that hot air enters the inner part of the tank wall of the distillation tank, flows to the air nozzle and is quickly sprayed out of the air nozzle.
The air nozzle sprays gas into the distillation retort fast, and the flow of air current drives the liquid in the distillation retort and rolls along with the air current, and then makes the liquid heating in the distillation retort more even. Meanwhile, hot air flows inside the tank wall of the distillation tank to heat the inner wall of the distillation tank, so that the materials are effectively prevented from being evaporated and then reaching the tank wall of the distillation tank to be precooled and condensed. The efficiency of distillation is guaranteed.
During distillation, a large amount of the steam with higher temperature is generated and flows out of the distillation tank through a steam outlet and flows to the heat exchanger. Meanwhile, when the air heater works, air is sucked through the heat exchanger. The air and steam exchange heat in the heat exchanger, so that the steam condenses and the air is heated. The heated air enters the hot air blower and is heated again. The distillation device utilizing the waste heat can also utilize the heat released by steam condensation for the waste heat of cold air, thereby reducing the energy consumption.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic view of a distillation apparatus provided in example 1 of the present invention;
FIG. 2 is a schematic view of the distribution of the air nozzles of example 1 of the present invention on the bottom wall of the distillation tank;
fig. 3 is a schematic diagram of a distillation apparatus provided in embodiment 2 of the present invention.
Icon:
1-distillation tank, 11-air guide gap, 12-air nozzle, 13-electric heating tube, 14-liquid level meter, 15-feed inlet, 16-discharge outlet, 17-steam outlet, 18-top cover, 19-air inlet, 2-air compressor, 3-electric heating plate, 4-heat insulation layer, 5-heat exchanger and 51-discharge outlet.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
Example 1:
referring to fig. 1 and 2, the present embodiment provides a distillation apparatus using waste heat, including a distillation tank 1, a hot air blower and a heat exchanger 5. The top of the distillation tank 1 is provided with a feed inlet 15 and a steam outlet 17, and the feed inlet 15 is also provided with a top cover 18 in a matching way. The top cover 18 is used to open or close the feed opening 15. The vapor formed after evaporation of the liquid in the distillation tank 1 is discharged from a vapor outlet 17 at the top of the distillation tank 1. The bottom of the distillation tank 1 is also provided with a discharge opening 16 for discharging the distilled liquid inside the distillation tank 1.
The wall of the distillation tank 1 is double-layer, and an air guide gap 11 is arranged in the distillation tank. The inner wall of the distillation tank 1 is also provided with a plurality of air nozzles 12 communicated with the air guide gap 11. The air injection directions of the air injection nozzles 12 are all directed towards the interior of the distillation tank 1. An electric heating pipe 13 is also arranged inside the wall of the distillation retort 1. In practice, the electric heating tube 13 is arranged inside the bottom wall of the retort 1.
The hot air blower comprises an air compressor 2 and an electric heating plate 3. The electric heating wire is arranged in the electric heating plate 3. The air outlet end of the air compressor 2 is connected with the electric heating plate 3. The air outlet end of the electric heating plate 3 is connected with the air guide gap 11. The heat exchanger 5 is a plate heat exchanger. The plate heat exchanger comprises a first channel and a second channel. An air inlet of the air compressor 2 is connected with one end of the first channel, and the other end of the first channel is an air inlet. The steam outlet 17 is connected to one end of the second channel, and the other end of the second channel is a discharge hole 51.
When in use, the raw material liquid is added into the distillation tank 1. The raw material in the retort 1 is then heated by the electric heating tube 13. During the heating process, the hot air blower is turned on, so that hot air enters the inner part of the tank wall of the distillation tank 1 and flows to the air nozzle 12 to be rapidly sprayed out of the air nozzle 12.
The air nozzle 12 rapidly sprays gas into the distillation retort 1, and the flowing of the air flow drives the liquid in the distillation retort 1 to roll along with the air flow, so that the liquid in the distillation retort 1 is heated more uniformly. Meanwhile, hot air flows inside the wall of the distillation retort 1 to heat the inner wall of the distillation retort 1, so that the materials are effectively prevented from being evaporated and then reaching the wall of the distillation retort 1 to be precooled and condensed. The efficiency of distillation is guaranteed.
During the distillation, a large amount of the steam produced, which is at a higher temperature, flows out of the distillation tank 1 through the steam outlet 17 and flows to the heat exchanger 5. Meanwhile, when the air heater is operated, air is sucked from the air inlet through the heat exchanger 5. The air and steam exchange heat in the heat exchanger 5, so that the steam condenses and the air is heated. The heated air enters the hot air blower and is heated again. The distillation device utilizing the waste heat can also utilize the heat released by steam condensation for the waste heat of cold air, thereby reducing the energy consumption. The condensed liquid flows out of the discharge port 51.
In this embodiment, the bottom of the distillation tank 1 is provided with a liquid level meter 14. In practice, a controller is also provided, and the liquid level gauge 14 and the air heater are electrically connected to the controller. The controller prestores the pressure intensity of the compressed air in the compressor 2 corresponding to each liquid level height. During the use, the inside liquid level height of level gauge 14 monitoring retort 1 and with the data transmission of liquid level height to controller, the controller compares each liquid level height that prestores in current liquid level height data and the controller to according to the pressure of the compressed air in the contrast result control compressor 2, the speed of the air current of final control air nozzle 12 spun, make the speed adaptation of air nozzle 12 spun air current in the liquid level height of retort 1. This ensures a uniform heating effect and also avoids the loss of control of the liquid in the retort 1 due to the excessive velocity of the gas stream emitted by the gas nozzle 12. Meanwhile, the air compressor 2 can automatically adjust the compression power according to the liquid level height, and energy is saved.
In this embodiment, each air nozzle 12 is provided with a solenoid valve. The electromagnetic valves are all electrically connected with the controller. The controller coordinates the work of the electromagnetic valve and the compressor 2, and when air injection is needed, the electromagnetic valve and the compressor 2 are opened, so that air injection of the air injection nozzle 12 is smooth. When air injection is not needed, the electromagnetic valve and the compressor 2 are closed, liquid in the distillation retort 1 is prevented from entering the air guide gap 11, and cleanness in the air guide gap 11 is guaranteed.
In this embodiment, the outer wall of the distillation tank 1 is provided with an insulating layer 4. The heat loss caused by the heat carried away by the outer wall of the distillation retort 1 when the hot air passes through the air guide gap 11 is avoided.
Example 2:
this embodiment is a modification of embodiment 1. As shown in fig. 3, in the present embodiment, the air guide gap 11 has a tubular shape. A tubular gas guiding gap 11 extends from the top of the retort 1 in a spiral shape towards the bottom of the retort 1. The air outlet of the air heater is connected to the top end of the air guide gap 11. During operation, hot air generated by the hot air blower can only gradually circulate from the top end of the distillation retort 1 to the bottom of the distillation retort 1 along the tubular air guide gap 11, so that the hot air can pass through the whole tank wall of the distillation retort 1, and the whole tank wall of the distillation retort 1 can be heated.
In practice, several air nozzles 12 are evenly distributed over the bottom wall of the retort 1. A plurality of air nozzles 12 are connected to the bottom end of the air guide gap 11. The jetting directions of the plurality of air nozzles 12 are all vertically upward. This can be very good to ensure that the liquid inside the retort 1 is heated evenly.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A distillation plant of waste heat utilization, characterized by: comprises a distillation retort (1), a hot air blower and a heat exchanger (5); an air guide gap (11) is arranged in the inner part of the tank wall of the distillation tank (1); the inner wall of the distillation tank (1) is also provided with a plurality of air nozzles (12) communicated with the air guide gaps (11); the air injection directions of the air injection nozzles (12) all point to the inside of the distillation retort (1); an electric heating pipe (13) is also arranged in the wall of the distillation retort (1); the distillation tank (1) is also provided with a steam outlet (17); the air inlet and the steam outlet (17) of the air heater are both connected to the heat exchanger (5) so that air enters the air heater after heat exchange with steam;
the air outlet of the air heater is connected with the air guide gap (11).
2. The waste heat utilizing distillation apparatus according to claim 1, wherein: a liquid level meter (14) is arranged at the bottom of the distillation tank (1); the liquid level meter (14) is electrically connected with the hot air blower.
3. The waste heat utilizing distillation apparatus according to claim 1, wherein: the hot air blower comprises an air compressor (2) and an electric heating disc (3); the electric heating wire is arranged in the electric heating tray (3); the air outlet end of the air compressor (2) is connected to the electric heating disc (3); the air outlet end of the electric heating disc (3) is connected with the air guide gap (11).
4. The waste heat utilizing distillation apparatus according to claim 1, wherein: each air nozzle (12) is provided with an electromagnetic valve.
5. The waste heat utilizing distillation apparatus according to claim 1, wherein: the air guide gap (11) is tubular; the tubular air guide gap (11) extends from the top of the distillation tank (1) to the bottom of the distillation tank (1) in a spiral shape; the air outlet of the air heater is connected to the top end of the air guide gap (11).
6. The waste heat utilizing distillation apparatus according to claim 5, wherein: the plurality of air nozzles (12) are uniformly distributed on the bottom wall of the distillation tank (1); the air nozzles (12) are connected to the bottom end of the air guide gap (11); the spraying directions of the plurality of air nozzles (12) are all vertically upward.
7. The waste heat utilizing distillation apparatus according to claim 1, wherein: and a heat-insulating layer (4) is arranged on the outer wall of the distillation tank (1).
8. The waste heat utilizing distillation apparatus according to claim 1, wherein: the heat exchanger (5) is a plate heat exchanger; the plate heat exchanger comprises a first channel and a second channel; an air inlet of the air heater is connected with one end of the first channel, and the other end of the first channel is an air inlet; the steam outlet (17) is connected with one end of the second channel; the other end of the second channel is a discharge hole (51).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020205194.XU CN211836369U (en) | 2020-02-24 | 2020-02-24 | Waste heat utilization's distillation plant of waste heat utilization |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020205194.XU CN211836369U (en) | 2020-02-24 | 2020-02-24 | Waste heat utilization's distillation plant of waste heat utilization |
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| CN211836369U true CN211836369U (en) | 2020-11-03 |
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| CN202020205194.XU Active CN211836369U (en) | 2020-02-24 | 2020-02-24 | Waste heat utilization's distillation plant of waste heat utilization |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115321570A (en) * | 2022-08-17 | 2022-11-11 | 多氟多（昆明）科技开发有限公司 | Distillation type cryolite production is with refining device based on bioengineering |
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2020
- 2020-02-24 CN CN202020205194.XU patent/CN211836369U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115321570A (en) * | 2022-08-17 | 2022-11-11 | 多氟多（昆明）科技开发有限公司 | Distillation type cryolite production is with refining device based on bioengineering |
| CN115321570B (en) * | 2022-08-17 | 2023-10-27 | 多氟多（昆明）科技开发有限公司 | Distillation type cryolite production is with refining device based on bioengineering |
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