CN215841679U - Vacuum alcohol recovery and distillation device - Google Patents
Vacuum alcohol recovery and distillation device Download PDFInfo
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- CN215841679U CN215841679U CN202122095987.8U CN202122095987U CN215841679U CN 215841679 U CN215841679 U CN 215841679U CN 202122095987 U CN202122095987 U CN 202122095987U CN 215841679 U CN215841679 U CN 215841679U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
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Abstract
The utility model relates to a vacuum alcohol recovery and distillation device, which comprises a vacuum buffer tank, a vacuum circulating tank, an alcohol distillation tower, an alcohol storage tank, a refrigerant storage tank and a refrigerator, wherein the bottom of the refrigerant storage tank is connected with an inlet of the refrigerator through a refrigerant circulating pump, an outlet of the refrigerator is connected with a chilled water inlet pipeline, the upper part of the refrigerant storage tank is also connected with a chilled water outlet pipeline, and the chilled water inlet pipeline is connected to the chilled water outlet pipeline through a wound tube type heat exchanger, a plate type heat exchanger and a tubular heat exchanger respectively; the lower end of the tube side of the winding tube type heat exchanger is connected with the vacuum buffer tank, the top of the vacuum buffer tank is connected to a vacuum port of a vacuum pump through a pipeline, the vacuum pump is connected to the top of the vacuum circulating tank through a pipeline, and the bottoms of the vacuum buffer tank and the vacuum circulating tank are connected to a feed port of the alcohol distillation tower through a negative pressure pump; the recovery and distillation device has low overall alcohol loss rate and greatly reduces the production cost.
Description
Technical Field
The utility model relates to the technical field of alcohol recovery, in particular to a vacuum alcohol recovery and distillation device.
Background
At present, in the process of extracting and concentrating the plant extract by using the alcohol solvent, the solvent of extraction residues after alcohol extraction is recovered by using vacuum, and the solvent of an extracting solution is removed by using single-effect decompression concentration equipment and the like. The conventional extraction residue alcohol recovery and extraction liquid alcohol removal are that materials are heated by steam firstly, so that liquid alcohol reaches the boiling point and becomes alcohol steam, then the alcohol steam passes through a conventional heat exchanger (a tubular or plate heat exchanger), normal-temperature circulating water is introduced for cooling condensation and cooling, and the alcohol which becomes liquid is recovered. Conventional heat exchanger heat transfer area is limited, and the circulating water temperature of normal atmospheric temperature is higher (can reach more than 30 ℃ when the weather is hot), and alcohol steam condensation efficiency is not high, leads to partial alcohol steam to get into the vacuum pump along with the vacuum pipe, and the loss of discharging along with the drainage of vacuum pump and exhaust leads to whole alcohol loss rate height, and manufacturing cost is high.
Disclosure of Invention
The utility model aims to provide a vacuum alcohol recovery and distillation device, which aims to solve the problems that the overall alcohol loss rate of the recovery and distillation device is low and the production cost is greatly reduced.
The specific scheme of the utility model is as follows: a vacuum alcohol recovery and distillation device comprises a vacuum buffer tank, a vacuum circulating tank, an alcohol distillation tower, an alcohol storage tank, a refrigerant storage tank and a refrigerator, wherein the bottom of the refrigerant storage tank is connected with an inlet of the refrigerator through a refrigerant circulating pump, an outlet of the refrigerator is connected with a chilled water inlet pipe, the upper part of the refrigerant storage tank is also connected with a chilled water outlet pipe, the chilled water inlet pipe is connected to the chilled water outlet pipe through a wound tube heat exchanger, a plate heat exchanger and a tubular heat exchanger respectively, the upper end and the lower end of a shell pass of the wound tube heat exchanger are connected with the chilled water outlet pipe and the chilled water inlet pipe respectively, one side of a cold source of the plate heat exchanger is connected to the chilled water outlet pipe and the chilled water inlet pipe respectively, and the two ends of the tube pass of the tubular heat exchanger are connected to the chilled water inlet pipe and the chilled water outlet pipe respectively; the vacuum tube is connected to winding tubular heat exchanger's tube side upper end, and winding tubular heat exchanger's tube side lower extreme is connected vacuum buffer tank, vacuum buffer tank top is connected to the vacuum mouth of a vacuum pump through the pipeline, and the vacuum pump passes through pipe connection to vacuum circulation tank top, and the water inlet of vacuum pump and plate heat exchanger's hot water exit linkage, plate heat exchanger's hot water import is connected to vacuum circulation tank's bottom, and vacuum buffer tank and vacuum circulation tank's bottom is connected to the feed inlet of alcohol distillation tower through the negative pressure pump jointly, and the top of the tower of alcohol distillation tower is connected to shell side entry end of tubulation heat exchanger, and shell side exit end of tubulation heat exchanger is connected to the alcohol storage tank.
Further, the winding pipe in the winding pipe type heat exchanger is a spiral winding pipe with the diameter of 8 mm.
Furthermore, the outer walls of the wound tube type heat exchanger, the plate type heat exchanger, the refrigerant storage tank, the chilled water inlet pipeline, the chilled water outlet pipeline and the vacuum circulating tank are additionally provided with insulating layers, so that the loss of chilled water cold energy is slowed down, and the power consumption of the refrigerator is reduced.
Furthermore, the temperature of the refrigerant introduced into the wound tube type heat exchanger, the plate type heat exchanger and the tubular heat exchanger is 0-2 ℃.
Further, the wound tube type heat exchanger is vertically installed, the plate type heat exchanger is vertically installed, and the tubular heat exchanger is transversely arranged and installed.
Compared with the prior design, the utility model has the following advantages:
(1) the spiral wound pipes with the diameter of 8mm are arranged inside the wound pipe type heat exchanger, and compared with a shell and tube heat exchanger with the same volume, the heat exchange area of the wound pipe type heat exchanger is increased by several times, so that the quantity of alcohol steam condensed into liquid is greatly increased, and the alcohol recovery rate is improved.
(2) The water of the vacuum pump circulates in the vacuum buffer tank, and the circulating water is cooled through the plate heat exchanger, compared with the conventional vacuum pump which is used for supplementing tap water and directly discharging outlet water, the water consumption of the vacuum pump is reduced, meanwhile, residual uncondensed alcohol steam in the vacuum can be dissolved into the circulating water through cold water circulation, and when the alcohol degree in the circulating water reaches a certain degree, the alcohol is distilled, and the alcohol is further recovered.
(3) The outer walls of the wound tube type heat exchanger, the plate type heat exchanger, the refrigerant storage tank, the chilled water inlet pipeline, the chilled water outlet pipeline and the vacuum circulating tank are also provided with the insulating layers additionally, so that the loss of chilled water cold energy can be slowed down, and the power consumption of the refrigerator is reduced.
(4) The vacuum buffer tank and the vacuum circulating tank are connected with the alcohol distillation tower through the shared negative pressure pump, when the alcohol in the vacuum buffer tank reaches a certain liquid level or the alcohol in the vacuum circulating tank reaches a certain degree, the negative pressure pump is started, and the low alcohol in the two tanks can be respectively pumped into the alcohol distillation tower to be distilled into high alcohol under the conditions of continuous vacuum and negative pressure and stored in the alcohol storage tank.
(5) According to the wound tube type heat exchanger, the plate type heat exchanger and the tubular heat exchanger, the introduced cooling medium is not cooling water at normal temperature, but a 0-2 ℃ refrigerant generated by a refrigerator, so that the medium temperature is lower, the heat exchange is better, the alcohol vapor condensation recovery effect is better, and the recovery rate is greatly improved.
(6) According to the utility model, 95% high alcohol can be directly obtained for recycling by serially connecting alcohol recovery and distillation, and the conventional alcohol recovery device can only obtain low alcohol and cannot be directly reused.
Drawings
Fig. 1 is a schematic view of the general structure of the present invention.
In the figure: the system comprises a winding pipe type heat exchanger 1, a winding pipe 2, a vacuum buffer tank 3, a valve 4, a negative pressure pump 5, a vacuum circulation tank 6, a plate type heat exchanger 7, a plate type heat exchange plate 8, a vacuum pump 9, an alcohol distillation tower 10, an alcohol storage tank 11, a refrigerant storage tank 12, a refrigerant circulation pump 13, a refrigerator 14, a tubular heat exchanger 15, a tubular heat exchanger 16, a chilled water inlet pipeline 17 and a chilled water outlet pipeline 18.
Detailed Description
The technical solutions of the present invention will be described in detail below with reference to the accompanying drawings, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships conventionally arranged when the products of the present invention are used, and are only used for convenience in describing the present invention or simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed in a specific orientation, or be operated, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," and "connected" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the connection may be direct or indirect via an intermediate medium, and may be a communication between the two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1, the utility model is a vacuum alcohol recovery and distillation device, comprising a vacuum buffer tank 3, a vacuum circulation tank 6, an alcohol distillation tower 10, an alcohol storage tank 11, a refrigerant storage tank 12 and a refrigerator 14, wherein the bottom of the refrigerant storage tank is connected with the inlet of the refrigerator through a refrigerant circulation pump 13, the outlet of the refrigerator is connected with a chilled water inlet pipe 17, the upper part of the refrigerant storage tank is also connected with a chilled water outlet pipeline 18, the chilled water inlet pipeline is respectively connected to the chilled water outlet pipeline through the wound tube type heat exchanger 1, the plate type heat exchanger 7 and the tubular heat exchanger 15, the upper end and the lower end of the shell pass of the wound tube type heat exchanger are respectively connected with a chilled water outlet pipeline and a chilled water inlet pipeline, one side of a cold source of the plate type heat exchanger is respectively connected to the chilled water outlet pipeline and the chilled water inlet pipeline, and two ends of the tube pass of the tubular heat exchanger are respectively connected to the chilled water inlet pipeline and the chilled water outlet pipeline; the vacuum tube is connected to winding tubular heat exchanger's tube side upper end, and winding tubular heat exchanger's tube side lower extreme is connected vacuum buffer tank, vacuum buffer tank top is connected to the vacuum mouth of a vacuum pump 9 through the pipeline, and the vacuum pump passes through pipe connection to vacuum circulation tank top, and the water inlet of vacuum pump and plate heat exchanger's hot water exit linkage, plate heat exchanger's hot water import is connected to vacuum circulation tank's bottom, and vacuum buffer tank and vacuum circulation tank's bottom is connected to the feed inlet of alcohol distillation tower through negative pressure pump 5 jointly, and the top of the tower of alcohol distillation tower is connected to shell side entry end of shell side heat exchanger, and shell side exit end of shell side heat exchanger is connected to the alcohol storage tank.
Further, the winding pipe in the winding pipe type heat exchanger in the present embodiment is a spiral winding pipe with a diameter of 8 mm.
Furthermore, in this embodiment, still install the heat preservation additional on winding tubular heat exchanger, plate heat exchanger, refrigerant storage tank, refrigerated water inlet channel, refrigerated water outlet conduit, the vacuum cycle jar outer wall, slow down scattering and disappearing of refrigerated water cold volume, reduce refrigerator power consumption.
Further, in this embodiment, the temperature of the refrigerant introduced into the wound tube heat exchanger, the plate heat exchanger, and the tubular heat exchanger is 0 to 2 ℃.
Further, in this embodiment, the wound tube heat exchanger is vertically installed, the plate heat exchanger is vertically installed, and the tubular heat exchanger is installed in a transverse arrangement.
The working process of the utility model is as follows:
opening the refrigerator, a refrigerant circulating pump and corresponding valves, reducing the temperature of the refrigerant in the refrigerant storage tank to 0-2 ℃ through the refrigerator, allowing the refrigerant to enter a chilled water inlet pipeline, allowing the refrigerant to enter a chilled water outlet pipeline through the wound tube type heat exchanger, the plate type heat exchanger and the tubular heat exchanger respectively, and finally allowing the refrigerant to flow back to the refrigerant storage tank; putting half-tank purified water in the vacuum circulating tank in advance, starting a vacuum pump and a corresponding valve of the vacuum circulating tank, starting the circulation of the vacuum water, and starting vacuumizing; alcohol vapor in the vacuum pipeline is condensed into liquid in the winding pipe type heat exchanger and flows into the vacuum buffer tank, and a small amount of uncondensed alcohol vapor is pumped into the vacuum pump and finally dissolved into circulating water cooled by the plate type heat exchanger; when the alcohol liquid level in the vacuum buffer tank reaches a certain position or the alcohol in the vacuum circulating tank reaches a certain degree, the vacuum is not stopped, a negative pressure pump is started, and the low alcohol in the tank is pumped into an alcohol distillation tower; the low alcohol is heated by steam at the bottom of the alcohol distillation tower to become alcohol and water vapor, and is separated in the packing at the middle upper part of the distillation tower, and the alcohol vapor enters a tube heat exchanger at the top of the tower to be condensed and cooled into 95% high alcohol and flows into a high alcohol storage tank.
The spiral wound pipes with the diameter of 8mm are arranged inside the wound pipe type heat exchanger, and compared with a shell and tube heat exchanger with the same volume, the heat exchange area of the wound pipe type heat exchanger is increased by several times, so that the quantity of alcohol steam condensed into liquid is greatly increased, and the alcohol recovery rate is improved.
The water of the vacuum pump circulates in the vacuum buffer tank and the vacuum pump, and the circulating water is cooled through the plate heat exchanger, compared with the conventional vacuum pump which is used for supplementing tap water and directly discharging outlet water, the water consumption of the vacuum pump is reduced, meanwhile, residual uncondensed alcohol steam in the vacuum can be dissolved into the circulating water through cold water circulation, and when the alcohol degree in the circulating water reaches a certain degree, the alcohol is distilled, and the alcohol is further recovered.
The outer walls of the wound tube type heat exchanger, the plate type heat exchanger, the refrigerant storage tank, the chilled water inlet pipeline, the chilled water outlet pipeline and the vacuum circulating tank are also provided with the insulating layers additionally, so that the loss of chilled water cold energy can be slowed down, and the power consumption of the refrigerator is reduced.
The vacuum buffer tank and the vacuum circulating tank are connected with the alcohol distillation tower through the shared negative pressure pump, when the alcohol in the vacuum buffer tank reaches a certain liquid level or the alcohol in the vacuum circulating tank reaches a certain degree, the negative pressure pump is started, and the low alcohol in the two tanks can be respectively pumped into the alcohol distillation tower to be distilled into high alcohol under the conditions of continuous vacuum and negative pressure and stored in the alcohol storage tank.
According to the wound tube type heat exchanger, the plate type heat exchanger and the tubular heat exchanger, the introduced cooling medium is not cooling water at normal temperature, but a 0-2 ℃ refrigerant generated by a refrigerator, so that the medium temperature is lower, the heat exchange is better, the alcohol vapor condensation recovery effect is better, and the recovery rate is greatly improved.
According to the utility model, alcohol recovery and distillation are used in series, 95% high alcohol can be directly obtained for recycling, and a conventional alcohol recovery device can only obtain low alcohol and cannot be directly reused.
Claims (5)
1. The utility model provides a vacuum alcohol recovery and distillation plant which characterized in that: the device comprises a vacuum buffer tank, a vacuum circulating tank, an alcohol distillation tower, an alcohol storage tank, a refrigerant storage tank and a refrigerator, wherein the bottom of the refrigerant storage tank is connected with an inlet of the refrigerator through a refrigerant circulating pump, an outlet of the refrigerator is connected with a chilled water inlet pipeline, the upper part of the refrigerant storage tank is also connected with a chilled water outlet pipeline, the chilled water inlet pipeline is connected to the chilled water outlet pipeline through a wound tube heat exchanger, a plate heat exchanger and a tubular heat exchanger respectively, the upper end and the lower end of a shell pass of the wound tube heat exchanger are connected with the chilled water outlet pipeline and the chilled water inlet pipeline respectively, one side of a cold source of the plate heat exchanger is connected to the chilled water outlet pipeline and the chilled water inlet pipeline respectively, and two ends of the tube pass of the tubular heat exchanger are connected to the chilled water inlet pipeline and the chilled water outlet pipeline respectively; the vacuum tube is connected to winding tubular heat exchanger's tube side upper end, and winding tubular heat exchanger's tube side lower extreme is connected vacuum buffer tank, vacuum buffer tank top is through the vacuum mouth of pipe connection to a vacuum pump, and the vacuum pump passes through pipe connection to vacuum circulation tank top, and the water inlet of vacuum pump and plate heat exchanger's hot water exit linkage, plate heat exchanger's hot water import is connected to vacuum circulation tank's bottom, and vacuum buffer tank and vacuum circulation tank's bottom is connected to the feed inlet of alcohol distillation tower through the negative pressure pump jointly, and the top of the tower of alcohol distillation tower is connected to shell side entry end of shell tube heat exchanger, and shell side exit end of shell tube heat exchanger is connected to the alcohol storage tank.
2. A vacuum alcohol recovery and distillation apparatus according to claim 1, wherein: and the winding pipe in the winding pipe type heat exchanger is a spiral winding pipe with the diameter of 8 mm.
3. A vacuum alcohol recovery and distillation apparatus according to claim 1, wherein: and the outer walls of the winding pipe type heat exchanger, the plate type heat exchanger, the refrigerant storage tank, the chilled water inlet pipeline, the chilled water outlet pipeline and the vacuum circulating tank are also provided with heat preservation layers, so that the loss of chilled water cold quantity is slowed down, and the power consumption of the refrigerator is reduced.
4. A vacuum alcohol recovery and distillation apparatus according to claim 1, wherein: the temperature of the refrigerant introduced into the winding tube type heat exchanger, the plate type heat exchanger and the tubular heat exchanger is 0-2 ℃.
5. A vacuum alcohol recovery and distillation apparatus according to claim 1, wherein: the winding tube type heat exchanger is vertically installed, the plate type heat exchanger is vertically installed, and the tubular heat exchanger is transversely arranged and installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122095987.8U CN215841679U (en) | 2021-09-01 | 2021-09-01 | Vacuum alcohol recovery and distillation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122095987.8U CN215841679U (en) | 2021-09-01 | 2021-09-01 | Vacuum alcohol recovery and distillation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215841679U true CN215841679U (en) | 2022-02-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122095987.8U Active CN215841679U (en) | 2021-09-01 | 2021-09-01 | Vacuum alcohol recovery and distillation device |
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| Country | Link |
|---|---|
| CN (1) | CN215841679U (en) |
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2021
- 2021-09-01 CN CN202122095987.8U patent/CN215841679U/en active Active
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