CN211536563U - Traditional chinese medicine extract evaporation and concentration device - Google Patents
Traditional chinese medicine extract evaporation and concentration device Download PDFInfo
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- CN211536563U CN211536563U CN201922001980.8U CN201922001980U CN211536563U CN 211536563 U CN211536563 U CN 211536563U CN 201922001980 U CN201922001980 U CN 201922001980U CN 211536563 U CN211536563 U CN 211536563U
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Abstract
The utility model relates to a traditional Chinese medicine extract evaporation and concentration device, which comprises a preheating unit, an evaporation and concentration unit and a steam compression unit which are connected in sequence; wherein, the evaporation concentration unit includes the falling film heat exchanger, two effect falling film circulating pump, one effect falling film circulating pump, falling film separator and the ejection of compact pump that connect gradually, and the falling film heat exchanger is connected with the comdenstion water unit, preheats the unit and is connected with the falling film heat exchanger, and the vapor compression unit includes the washing separator, and the washing separator is connected with falling film separator. The utility model discloses an increase the washing separator, wash secondary steam through the water spray, make secondary steam cleaner, can prevent that traditional chinese medicine active ingredient from getting into the distilled water to guarantee that the compressor has good service condition, prolonged the life of compressor, ensured the stability of evaporating system operation, realize improving the production efficiency of chinese medicine extract, simplify the production flow, improve the security performance, reduce running cost.
Description
Technical Field
The utility model relates to a traditional chinese medicine processing apparatus, more specifically say and indicate a traditional chinese medicine extract evaporation concentration device.
Background
At present, a traditional Chinese medicine concentration and evaporation device generally adopts a double-effect evaporator, and the double-effect evaporator is a process of connecting two evaporators in series for operation. The secondary steam generated in the former evaporator during evaporation can be used as heating steam of the latter evaporator, and the introduced secondary steam can play a role of a heating heat source as long as the pressure and the solution boiling point in the latter evaporator are lower than those in the former evaporator. Each evaporator is called as a single effect, and heat energy is recycled by recycling steam, so that energy consumption cost is reduced. Because the energy consumption of the double-effect evaporation process mainly comes from steam, and for most of enterprises needing outsourcing steam, along with the rising of the market steam price, the steam operation cost is higher and higher, and the burden of the enterprises is increased sharply.
Because the traditional Chinese medicine is easy to bubble in the evaporation and concentration process, the distilled water of the double-effect evaporator contains more effective components of the traditional Chinese medicine, and the water quality is not clean.
Therefore, it is necessary to design a new device to improve the production efficiency of the Chinese medicine extract, simplify the production process, improve the safety performance and reduce the operation cost.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art and provide a traditional Chinese medicine extracting solution evaporation and concentration device.
In order to achieve the above purpose, the utility model adopts the following technical scheme: an evaporation concentration device for traditional Chinese medicine extracting solution comprises a preheating unit, an evaporation concentration unit and a steam compression unit which are connected in sequence; wherein, the evaporation concentration unit includes the falling film heat exchanger, two effect falling film circulating pump, one effect falling film circulating pump, falling film separator and the ejection of compact pump that connect gradually, the falling film heat exchanger is connected with the comdenstion water unit, the preheating unit with the falling film heat exchanger is connected, the vapor compression unit includes the washing separator, the washing separator with the falling film separator is connected.
The further technical scheme is as follows: the preheating unit comprises a feeding pump, a condensate water preheater and a fresh steam preheater which are connected in sequence, the fresh steam preheater is connected with the falling film heat exchanger, and the condensate water preheater and the fresh steam preheater are respectively connected with the condensate water unit.
The further technical scheme is as follows: the condensed water preheater and the fresh steam preheater are respectively plate preheaters.
The further technical scheme is as follows: the steam compression unit further comprises a washing circulating pump, a washing water preheater, a steam compressor and a liquid accumulation tank which are connected in sequence, and the washing separator is connected with the washing circulating pump.
The further technical scheme is as follows: the top of the falling film separator is provided with a first outlet which is connected with the washing separator.
The further technical scheme is as follows: the bottom of the washing separator is provided with a second outlet, the second outlet is connected with the washing circulating pump, a third outlet is arranged at the side end of the washing separator, and the washing water preheater is connected with the third outlet.
The further technical scheme is as follows: the condensed water unit comprises a condensed water tank and a condensed water pump, the condensed water tank is connected with the condensed water pump, the condensed water pump is connected with the condensed water preheater, and the condensed water tank is connected with the falling film heat exchanger.
The further technical scheme is as follows: the condensed water preheater is connected with a vacuum control assembly, and the vacuum control assembly is connected with the falling film preheater.
The further technical scheme is as follows: the vacuum control assembly includes a vacuum pump cooler.
The further technical scheme is as follows: the vacuum pump cooler is connected with a vacuum pump.
Compared with the prior art, the utility model beneficial effect be: the utility model discloses an adopt energy-conserving mechanical vapor recompression technique, the thermal efficiency is high, the low power consumption, adopt mechanical vapor recompression technique, use less fresh steam heating, the dependence to boiler equipment has been reduced, the pollutant has been reduced, no pollution to the environment, it is more energy-concerving and environment-protective, through increasing the washing separator, wash secondary steam through the water spray, it is cleaner to make secondary steam, can prevent that traditional chinese medicine active ingredient from getting into the distilled water, and guarantee that the compressor has good service behavior, the life of compressor has been prolonged, the stability of evaporating system operation has been ensured, realize improving the production efficiency of traditional chinese medicine extract, simplify the production flow, the security performance is improved, and the operation cost is reduced.
The invention is further described with reference to the accompanying drawings and specific embodiments.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without any creative effort.
Fig. 1 is a schematic structural view of an evaporation and concentration device for traditional Chinese medicine extract according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be described in further detail with reference to the accompanying drawings and the following 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 those skilled in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "secured" are to be construed broadly and can, for example, be connected or detachably connected or integrated; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above should not be understood to necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by one skilled in the art.
As shown in fig. 1, the present embodiment provides an evaporation concentration apparatus for extracting chinese traditional medicine, which can be applied to the evaporation concentration process of extracting chinese traditional medicine.
Referring to fig. 1, the above-mentioned evaporation concentration apparatus for traditional Chinese medicine extract solution includes a preheating unit, an evaporation concentration unit and a vapor compression unit connected in sequence; wherein, the evaporation concentration unit includes that falling film heat exchanger 9, two effect falling film circulating pump 8, one effect falling film circulating pump 10, falling film separator 11 and the ejection of compact pump 13 that connect gradually, and falling film heat exchanger 9 is connected with the comdenstion water unit, preheats the unit and is connected with falling film heat exchanger 9, and the vapor compression unit includes washing separator 12, and washing separator 12 is connected with falling film separator 11.
The energy-saving mechanical vapor recompression technology is adopted, the energy consumption for evaporating 1 ton of water is about 1/6 to 1/5 of the traditional evaporator, the thermal efficiency is high, the power consumption is low, the mechanical vapor recompression technology is adopted, a small amount of fresh vapor is used for heating, the dependence on boiler equipment is reduced, pollutants are reduced, has no pollution to the environment, is more energy-saving and environment-friendly, and can wash the secondary steam by spraying water through adding the washing separator 12, so that the secondary steam is cleaner, the active ingredients of the traditional Chinese medicine can be prevented from entering the distilled water, and the steam compression unit is ensured to have good use condition, the service life of the steam compression unit is prolonged, the running stability of the evaporation system is ensured, the process flow is simple, the realization is easy, the automation degree is high, the running cost is low, the sustainable development requirement is met, and the method can be widely applied to the actual industrial production process.
In an embodiment, the preheating unit includes a feeding pump 1, a condensate preheater 2 and a fresh steam preheater 3 connected in sequence, the fresh steam preheater 3 is connected to the falling film heat exchanger 9, and the condensate preheater 2 and the fresh steam preheater 3 are respectively connected to the condensate unit. The traditional Chinese medicine extracting solution to be treated sequentially enters the condensate water preheater 2 and the fresh steam preheater 3 under the action of the feed pump 1, and exchanges heat with distilled water in the condensate water preheater 2 and fresh steam in the fresh steam preheater 3 to reach the evaporation temperature of the traditional Chinese medicine extracting solution to be treated, namely 80 ℃.
In the present embodiment, the condensate preheater 2 and the fresh steam preheater 3 are plate preheaters; of course, in other embodiments, the condensate preheater 2 and the fresh steam preheater 3 may be other types of preheaters, such as a tubular preheater.
In one embodiment, the fresh steam preheater 3 is connected to the falling film heat exchanger 9 through a pipeline, the Chinese medicine extract to be treated preheated by the fresh steam enters the falling film heat exchanger 9 through the pipeline, then the concentrated solution falls to the bottom of a lower tube of the falling film heat exchanger 9, the gas phase obtained by evaporation is discharged to an external falling film separator 11 through a side tube opening of the lower tube, and the material liquid and the secondary steam are continuously separated after evaporation. The bottom of the falling film separator 11 is connected with the inlet of the single-effect falling film circulating pump 10 through a pipeline, the traditional Chinese medicine concentrated solution obtained by gas-liquid separation in the falling film separator 11 is continuously pumped into the falling film heat exchanger 9 by the single-effect falling film circulating pump 10 for evaporation and concentration, and the circulation is carried out.
The lower pipe box in the falling film heat exchanger 9 is divided into two effects by a baffle, the traditional Chinese medicine extracting solution with slightly high one-effect density enters into the two effects by overflow, then is pumped into the falling film heat exchanger 9 by the two-effect falling film circulating pump 8 for evaporation and concentration, and the concentrated traditional Chinese medicine extracting solution reaching 1.1g/mL-1.15g/mL after concentration is pumped out by the discharging pump 13.
In one embodiment, referring to fig. 1, the vapor compression unit includes a washing circulation pump 14, a washing water preheater 15, a vapor compressor 6 and a liquid accumulation tank 7 connected in sequence through a pipeline, and the washing separator 12 is connected to the washing circulation pump 14.
Specifically, the top of the falling film separator 11 is provided with a first outlet, and the first outlet is connected with a washing separator 12.
Specifically, the bottom of the washing separator 12 is provided with a second outlet, the second outlet is connected with the washing circulation pump 14, the side end of the washing separator 12 is provided with a third outlet, and the washing water preheater 15 is connected with the third outlet.
The secondary steam generated in the falling film separator 11 enters the washing separator 12 from the top and is washed by spraying water, so that the secondary steam is cleaner, the active ingredients of traditional Chinese medicines can be prevented from entering distilled water, the steam compressor 6 is ensured to have good use condition, the service life of the steam compressor 6 is prolonged, and the running stability of an evaporation system is ensured. Washing water passes through in the washing separator 12 of washing circulating pump 14 pump income, shower water pipeline has increased washing water pre-heater 15, has prevented that the washing water temperature from being less than the heat of evaporating temperature time loss secondary steam, the secondary steam gets into behind the heating up and boosting in the steam compressor 6 after the washing, gets into falling film heat exchanger 9 heating material, steam compressor 6 is connected with amasss jar 7, amasss jar 7 adopts the three-way valve effect, realizes breaking the direct negative pressure of vacuum through autonomous system control and discharges the comdenstion water.
In one embodiment, the condensate unit includes a condensate water tank 5 and a condensate water pump 4, the condensate water tank 5 is connected to the condensate water pump 4, the condensate water pump 4 is connected to the condensate water preheater 2, and the condensate water tank 5 is connected to the falling film heat exchanger 9.
The secondary steam in the falling film heat exchanger 9 heats the traditional Chinese medicine extracting solution and then condenses into water to enter a condensate water tank 5, the water is pumped into a condensate water preheater 2 through the action of a condensate water pump, and the condensate water is discharged out of the system after exchanging heat with the traditional Chinese medicine extracting solution, so that the heat in the system is fully utilized.
In an embodiment, a mirror polishing tube is arranged in the falling film heat exchanger 9 to delay the scaling rate in the falling film heat exchanger 9, a steam channel is arranged on a tube plate of the falling film heat exchanger 9, heating steam entering the falling film heat exchanger 9 can be uniformly distributed, the heating steam entering a shell pass can rapidly reach the outer wall of each heat exchange tube, so that the heat exchange process is very uniform, the heat exchange conditions in the heat exchange tubes are ensured to be similar, and the phenomena of scaling and tube blocking of the heat exchange tubes of the falling film heat exchanger 9 due to dead angle areas are avoided.
In one embodiment, the condensate preheater 2 is connected to a vacuum control assembly, and the vacuum control assembly is connected to the falling film preheater.
Specifically, the vacuum control assembly includes a vacuum pump cooler 17. A vacuum pump 16 is connected to the vacuum pump cooler 17. The system vacuum is controlled by vacuum pump 16.
When the traditional Chinese medicine extracting solution evaporation and concentration device is used for carrying out evaporation and concentration, the process is used for treating the traditional Chinese medicine extracting solution with the flow rate of 5.2t/h, the density of the traditional Chinese medicine extracting solution is 1.01g/mL, and the whole process is as follows:
preheating the traditional Chinese medicine extracting solution to the evaporating temperature through a preheating unit. Specifically, Chinese medicine extract with the density of 1.01g/mL to be processed is sequentially pumped into a condensate water preheater 2 and a fresh steam preheater 3 by a feed pump 1, and is sequentially subjected to heat exchange with distilled water in the condensate water preheater 2 and fresh steam in the fresh steam preheater 3 to reach the evaporation temperature of the materials, namely 80 ℃, the distilled water is secondary steam condensate water obtained by evaporating the distilled water in a condensate water tank 5, the secondary steam is high-temperature high-pressure secondary steam with the temperature of 90 ℃ and the pressure of 70.1KPa obtained after compression by a compressor, and the fresh steam is saturated steam with the pressure of 1985mbar and the temperature of 120 ℃;
by opening the vacuum pump 16, circulating cooling water is introduced into the vacuum pump cooler 17, and the shell side of the falling film heat exchanger 9 is pumped into a negative pressure vacuum state with the pressure of 70.1KPa through a pipeline;
carrying out evaporation concentration on the preheated traditional Chinese medicine extracting solution through an evaporation concentration unit to obtain a traditional Chinese medicine extracting concentrated solution with the density of 1.1-1.15 g/mL, and sending the concentrated solution out of the system through a discharging pump 13; specifically, the preheated material enters the falling film heat exchanger 9, then is pumped into the falling film heat exchanger 9 through the first-effect falling film circulating pump 10 and the first-effect falling film circulating pump 10 for evaporation and concentration, the gas phase obtained by evaporation is discharged to the external falling film separator 11 through the pipe orifice at the side of the lower pipe box, and the material liquid and the secondary steam are continuously separated after evaporation. A micro-negative pressure of 47.4KPa is provided in the falling film separator 11, secondary steam with the temperature of 80 ℃ is obtained after flash separation, the secondary steam is discharged through a first outlet at the top of the falling film separator 11, and the concentrated traditional Chinese medicine extraction solution reaching 1.1g/mL-1.15g/mL after concentration is pumped out of the system through a discharge pump 13;
the secondary steam generated by evaporation concentration enters a washing separator 12, is washed by spraying water, enters a steam compressor 6 for compression and then returns to the falling film heat exchanger 9; specifically, the secondary steam is washed by spraying water into the washing separator 12 from the top of the falling film separator 11, so that the secondary steam is cleaner. The washing water is pumped into the washing separator 12 by the washing circulation pump 14, and the washing water preheater 15 is added on the spraying water pipeline to prevent the heat of the secondary steam from being lost when the temperature of the washing water is lower than the evaporating temperature. Washing the secondary steam, then compressing the secondary steam in a steam compressor 6 to obtain high-temperature high-pressure steam with the temperature of 90 ℃ and the pressure of 70.1KPa, recycling the high-temperature high-pressure steam to a falling film heat exchanger 9 for heating materials, condensing the high-temperature high-pressure steam into water flow to a condensate water tank 5 in the process of heating the materials, sending the water flow to a condensate water preheater 2 by a condensate water pump 4 for heat exchange with the traditional Chinese medicine extracting solution, cooling to about 10 ℃ higher than the temperature of the traditional Chinese medicine extracting solution, and then discharging the traditional Chinese medicine extracting solution. The vapor compressor 6 is connected with a liquid accumulation tank 7, the liquid accumulation tank 7 is acted by a three-way valve, and condensate water is discharged under direct negative pressure without breaking vacuum through the control of an automatic control system.
The traditional Chinese medicine extracting solution evaporation concentration device adopts an energy-saving mechanical vapor recompression technology, the energy consumption for evaporating 1 ton of water is about 1/6-1/5 of the traditional evaporator, the heat efficiency is high, the power consumption is low, the mechanical vapor recompression technology is adopted, a small amount of fresh steam is used for heating, the dependence on boiler equipment is reduced, pollutants are reduced, the environment is not polluted, the device is more energy-saving and environment-friendly, the secondary steam is washed by adding the washing separator 12 and spraying water, the secondary steam is cleaner, the active ingredients of traditional Chinese medicines can be prevented from entering distilled water, the compressor is ensured to have good use working conditions, the service life of the compressor is prolonged, the stability of the operation of an evaporation system is ensured, the process flow is simple, the device is easy to realize, the automation degree is high, the operation cost is low, and the sustainable development requirement is met, can be widely applied to the actual industrial production process, realizes the improvement of the production efficiency of the traditional Chinese medicine extracting solution, simplifies the production flow, improves the safety performance and reduces the operation cost.
The technical content of the present invention is further described by the embodiments only, so that the reader can understand it more easily, but the embodiments of the present invention are not limited thereto, and any technical extension or re-creation according to the present invention is protected by the present invention. The protection scope of the present invention is subject to the claims.
Claims (10)
1. An evaporation concentration device for traditional Chinese medicine extracting solution is characterized by comprising a preheating unit, an evaporation concentration unit and a steam compression unit which are connected in sequence; wherein, the evaporation concentration unit includes the falling film heat exchanger, two effect falling film circulating pump, one effect falling film circulating pump, falling film separator and the ejection of compact pump that connect gradually, the falling film heat exchanger is connected with the comdenstion water unit, the preheating unit with the falling film heat exchanger is connected, the vapor compression unit includes the washing separator, the washing separator with the falling film separator is connected.
2. The evaporative concentration device for traditional Chinese medicine extracting solution, according to claim 1, wherein the preheating unit comprises a feeding pump, a condensed water preheater and a fresh steam preheater which are connected in sequence, the fresh steam preheater is connected with the falling film heat exchanger, and the condensed water preheater and the fresh steam preheater are respectively connected with the condensed water unit.
3. The evaporative concentration device for Chinese herb medicine extracting solution as claimed in claim 2, wherein the condensate water preheater and the fresh steam preheater are plate preheaters respectively.
4. The device for evaporating and concentrating traditional Chinese medicine extracting solution according to claim 3, wherein the vapor compression unit further comprises a washing circulating pump, a washing water preheater, a vapor compressor and a liquid accumulation tank which are connected in sequence, and the washing separator is connected with the washing circulating pump.
5. The evaporative concentration device for traditional Chinese medicine extracting solution as claimed in claim 4, wherein a first outlet is provided at the top of the falling film separator, and the washing separator is connected to the first outlet.
6. The device of claim 5, wherein a second outlet is provided at the bottom of the washing separator, the second outlet is connected to the washing circulation pump, a third outlet is provided at the side end of the washing separator, and the washing water preheater is connected to the third outlet.
7. The evaporation and concentration device of traditional Chinese medicine extracting solution according to claim 6, wherein the condensed water unit comprises a condensed water tank and a condensed water pump, the condensed water tank is connected with the condensed water pump, the condensed water pump is connected with the condensed water preheater, and the condensed water tank is connected with the falling film heat exchanger.
8. The evaporative concentration device for traditional Chinese medicine extracting solution according to any one of claims 1 to 7, wherein a vacuum control assembly is connected to the condensed water preheater, and the vacuum control assembly is connected to the falling film preheater.
9. The apparatus as claimed in claim 8, wherein the vacuum control unit comprises a vacuum pump cooler.
10. The apparatus as claimed in claim 9, wherein the vacuum pump cooler is connected to a vacuum pump.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922001980.8U CN211536563U (en) | 2019-11-19 | 2019-11-19 | Traditional chinese medicine extract evaporation and concentration device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922001980.8U CN211536563U (en) | 2019-11-19 | 2019-11-19 | Traditional chinese medicine extract evaporation and concentration device |
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| CN211536563U true CN211536563U (en) | 2020-09-22 |
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| CN201922001980.8U Active CN211536563U (en) | 2019-11-19 | 2019-11-19 | Traditional chinese medicine extract evaporation and concentration device |
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