CN114618184B - A steam condensing equipment and collecting system for low oil content plant volatile oil - Google Patents
A steam condensing equipment and collecting system for low oil content plant volatile oil Download PDFInfo
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- CN114618184B CN114618184B CN202210098050.2A CN202210098050A CN114618184B CN 114618184 B CN114618184 B CN 114618184B CN 202210098050 A CN202210098050 A CN 202210098050A CN 114618184 B CN114618184 B CN 114618184B
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- 239000000341 volatile oil Substances 0.000 title claims abstract description 91
- 239000003921 oil Substances 0.000 title claims description 47
- 238000009826 distribution Methods 0.000 claims abstract description 50
- 235000019476 oil-water mixture Nutrition 0.000 claims abstract description 30
- 239000000498 cooling water Substances 0.000 claims abstract description 22
- 235000019198 oils Nutrition 0.000 claims description 43
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 23
- 238000000605 extraction Methods 0.000 claims description 13
- 125000003118 aryl group Chemical group 0.000 claims description 12
- XLYOFNOQVPJJNP-ZSJDYOACSA-N Heavy water Chemical compound [2H]O[2H] XLYOFNOQVPJJNP-ZSJDYOACSA-N 0.000 claims description 4
- 239000011521 glass Substances 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 2
- 230000005484 gravity Effects 0.000 abstract description 5
- 238000009833 condensation Methods 0.000 description 6
- 230000005494 condensation Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000001788 irregular Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000009991 scouring Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 239000000295 fuel oil Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 206010035148 Plague Diseases 0.000 description 1
- 241000607479 Yersinia pestis Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000003205 fragrance Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000001256 steam distillation Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 229940126680 traditional chinese medicines Drugs 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
- B01D5/0003—Condensation of vapours; Recovering volatile solvents by condensation by using heat-exchange surfaces for indirect contact between gases or vapours and the cooling medium
- B01D5/0012—Vertical tubes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
- B01D5/0033—Other features
- B01D5/0054—General arrangements, e.g. flow sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
- B01D5/0057—Condensation of vapours; Recovering volatile solvents by condensation in combination with other processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
- B01D5/0078—Condensation of vapours; Recovering volatile solvents by condensation characterised by auxiliary systems or arrangements
- B01D5/009—Collecting, removing and/or treatment of the condensate
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11B—PRODUCING, e.g. BY PRESSING RAW MATERIALS OR BY EXTRACTION FROM WASTE MATERIALS, REFINING OR PRESERVING FATS, FATTY SUBSTANCES, e.g. LANOLIN, FATTY OILS OR WAXES; ESSENTIAL OILS; PERFUMES
- C11B9/00—Essential oils; Perfumes
- C11B9/02—Recovery or refining of essential oils from raw materials
- C11B9/022—Refining
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The embodiment of the invention provides a steam condensing device and a collecting system for low-oil-content plant volatile oil, and relates to the field of volatile oil collecting equipment. The steam condensing device comprises an outer barrel, a conical inner barrel and a spiral guide plate, wherein the diameter of the conical inner barrel gradually reduces from the bottom to the top, the conical inner barrel is installed in the outer barrel, the spiral guide plate is spirally installed on the outer surface of the conical inner barrel, a cooling water outlet is formed in the top of the outer barrel, a cooling water inlet and an oil-water mixture outlet are formed in the bottom of the outer barrel, a steam distribution plate is arranged at the bottom of the conical inner barrel, a steam overflow pipe is arranged at the top of the conical inner barrel, a stopper is arranged in the steam overflow pipe, and an overflow gap for steam to be discharged is formed between the stopper and the steam overflow pipe. The utility model provides a can effectively slow down the velocity of flow of steam, reduce the volatile oil in the steam and be stained with the condition of wall, the volatile oil that the volatile oil relies on gravity and erodees can make to be stained with the wall and drop to the collection volume of volatile oil has been improved.
Description
Technical Field
The invention relates to the field of volatile oil collecting equipment, in particular to a steam condensing device and a collecting system for low-oil-content plant volatile oil.
Background
The vegetable volatile oil is also called essential oil, is a generic term for oily liquid which has volatility and can be distilled out along with water vapor, and is an important intermediate in the production process of the Chinese medicinal preparation.
At present, the volatile oil collecting process mainly adopts a steam distillation method, and the scheme is widely applied to volatile oil collection due to the mature technical principle, simple equipment structure, low cost and environmental friendliness. The traditional volatile oil collecting device can achieve satisfactory effect in the process of collecting volatile oil from plants with higher oil content. However, in the process of collecting part of plant volatile oil with lower oil content, the traditional collecting device has the problem that volatile oil in a condenser is easy to be stained with walls, so that the total collecting amount of the volatile oil is low, and the product quality is affected. This problem often plagues enterprises, hinders industry development, and is also a common problem in the production process of traditional Chinese medicines.
Therefore, the technical problems which need to be solved at present are to solve the problem of collecting low-content plant volatile oil and improving the quality of the product.
In view of this, the present application is specifically proposed.
Disclosure of Invention
The invention aims to provide a steam condensing device and a collecting system for low-oil-content plant volatile oil, which can sufficiently collect the low-oil-content plant volatile oil.
Embodiments of the invention may be implemented as follows:
in a first aspect, the invention provides a steam condensing device for low-oil-content plant volatile oil, which comprises an outer cylinder, a conical inner cylinder and a spiral guide plate, wherein the diameter of the conical inner cylinder gradually reduces from the bottom to the top, the conical inner cylinder is arranged in the outer cylinder, the spiral guide plate is spirally arranged on the outer surface of the conical inner cylinder, a cooling water outlet is formed in the top of the outer cylinder, a cooling water inlet and an oil-water mixture outlet are formed in the bottom of the outer cylinder, a steam distribution disc is arranged at the bottom of the conical inner cylinder, a steam overflow pipe is arranged at the top of the conical inner cylinder, a stopper is arranged in the steam overflow pipe, and an overflow gap for discharging steam is formed between the stopper and the steam overflow pipe.
In an alternative embodiment, the stopper includes a gap forming part, a first tip and a second tip, the first tip and the second tip being connected to both ends of the gap forming part, respectively.
In an alternative embodiment, the steam overflow pipe is a straight pipe, and the gap forming part is fixed in the steam overflow pipe.
In an optional embodiment, the steam overflow pipe is an inverted cone pipe, the diameter of the steam overflow pipe gradually decreases along the direction from the top to the bottom of the conical inner cylinder, the minimum diameter of the steam overflow pipe is larger than the diameter of the gap forming part, and the stopper is movably clamped in the steam overflow pipe.
In an alternative embodiment, the stopper further comprises a fixing piece, a disc is arranged at the top of the outer barrel, the disc is positioned at the top of the steam overflow pipe, the gap forming part extends out of the steam overflow pipe, one end of the fixing piece is connected with the top of the steam overflow pipe, and the other end of the fixing piece is connected with the disc through a bolt;
preferably, a first elastic piece is arranged between the fixing piece and the top of the bolt, a second elastic piece is arranged between the fixing piece and the disc at the bottom, and the bolt sequentially passes through the first elastic piece, the fixing piece and the second elastic piece and is fixed on the disc;
preferably, the first elastic member and the second elastic member are wave springs.
In an alternative embodiment, the steam distribution tray includes an air inlet pipe, a distribution manifold and a distribution air tap, the distribution manifold is an annular pipe, the distribution manifold is communicated with the air inlet pipe, and the distribution air tap is a plurality of distribution manifolds and is uniformly distributed and communicated with the distribution manifold.
In an alternative embodiment, the distribution air tap comprises a horizontal portion, a vertical portion and an inclined portion, wherein two ends of the vertical portion are respectively communicated with the horizontal portion and the inclined portion, the horizontal portion is communicated with the distribution manifold, and the inclined portion is inclined downwards towards the axis of the conical inner cylinder.
In a second aspect, the present invention provides a collection system for low oil content plant essential oils comprising a steam condensing unit for low oil content plant essential oils as described in any of the preceding embodiments.
In an alternative embodiment, the collection system for low oil content plant volatile oil further comprises an extraction tank, a tail gas condensing device, a cooler and an oil receiving device; the tail gas condensing device is provided with a tail gas inlet and a condensate outlet; the cooler is provided with an oil-water mixture inlet, an aromatic water outlet, a volatile oil outlet and a heavy water outlet;
the extraction tank is communicated with the steam distribution plate, the tail gas inlet is communicated with the steam overflow pipe, the oil-water mixture inlet is simultaneously communicated with the oil-water mixture outlet and the condensate outlet, the oil collecting device is communicated with the volatile oil outlet, and the aromatic water outlet is communicated with the extraction tank.
In an alternative embodiment, the collection system for low oil content plant volatile oil further comprises a control system, the control system comprises a plurality of temperature sensors and a plurality of flow controllers, the cooling water outlet, the oil-water mixture outlet and the aromatic water outlet are all provided with the temperature sensors, and the steam distribution plate and the pipeline of the cooling water outlet are all provided with the flow controllers.
In an alternative embodiment, the pipeline at the outlet of the oil-water mixture inlet, the aromatic water outlet, the volatile oil outlet and the oil receiving device is provided with a sight glass.
The beneficial effects of the embodiment of the invention include, for example:
the embodiment of the invention provides a steam condensing device for low-oil-content plant volatile oil, which can effectively reduce the condition that volatile oil in steam is stained with walls by arranging a conical inner cylinder.
The steam containing volatile oil is contacted with the conical inner cylinder wall after passing through the steam distribution disc and is quickly cooled to be condensed into oil-containing water drops. The volatile oil is contained in the oil-containing water drops, and compared with the steam condensation water drops, the volatile oil on the wall can fall off rapidly by means of gravity and repeated flushing of the steam in real time, so that the collection amount of the volatile oil is improved. Meanwhile, the flow speed of steam can be reduced by the arrangement of the stopper, so that the steam is quickly condensed into water in the conical inner cylinder, the amount of the steam entering the subsequent tail gas condenser is reduced, and the condition that the steam is stained with a wall in the tubular tail gas condenser is effectively reduced. The steam distribution plate can make steam evenly sprayed out, and the irregular flow of steam is avoided.
The utility model provides a collecting system for low oil content plant volatile oil can realize the extraction and the collection of volatile oil in the low oil content plant, and overall structure is simple arranges compact reliable operation.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a perspective view of a vapor condensing device for low oil content plant volatile oils provided herein;
FIG. 2 is an exploded view of the vapor condensing device for low oil content plant volatile oils provided herein at a first view angle;
FIG. 3 is an exploded view of the vapor condensing device for low oil content plant volatile oils provided herein at a second view angle;
FIG. 4 is a side view of a stopper and disk of a vapor condensing device for low oil content plant volatile oils provided herein in combination;
FIG. 5 is a perspective view of a stopper and disk of a vapor condensing device for low oil content plant volatile oils provided herein when mated;
FIG. 6 is an enlarged view of a portion of FIG. 5 at A;
FIG. 7 is a schematic view of the structure of a vapor distribution tray of the vapor condensing device for low oil content plant volatile oil provided in the present application;
FIG. 8 is a schematic diagram of a collection system for low oil content plant volatile oils provided herein.
Icon: 100-a steam condensing device for low oil content plant volatile oil; 110-an outer cylinder; 111-cooling water inlet; 112-a cooling water outlet; 113-an oil-water mixture outlet; 114-a disc; 120-a conical inner cylinder; 121-a steam distribution tray; 122-steam overflow pipe; 123-stopper; 1231-gap forming portion; 1232-a first tip; 1233-a second tip; 1234-fixing piece; 1235-bolt; 1236-first resilient member; 1237-a second resilient member; 124-overflow gap; 126-air inlet pipe; 127-distribution header; 128-distributing air nozzles; 1281-horizontal section; 1282-vertical; 1283-an inclined portion; 130-spiral baffle; 140-upper cover; 150-lower sealing cover;
200-a collection system for low oil content plant volatile oil; 210-an extraction tank; 220-a tail gas condensing device; 221-a tail gas inlet; 222-condensate outlet; 230-a cooler; 231-an oil-water mixture inlet; 232-a fragrance water outlet; 233-volatile oil outlet; 234-heavy oil outlet; 240-an oil receiving device; 250-mesh mirror.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of 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 apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention 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 invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present invention, it should be noted that, if the terms "upper", "lower", "inner", "outer", and the like indicate an azimuth or a positional relationship based on the azimuth or the positional relationship shown in the drawings, or the azimuth or the positional relationship in which the inventive product is conventionally put in use, it is merely for convenience of describing the present invention and simplifying the description, and it is not indicated or implied that the apparatus or element referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus it should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, if any, are used merely for distinguishing between descriptions and not for indicating or implying a relative importance.
It should be noted that the features of the embodiments of the present invention may be combined with each other without conflict.
First embodiment
Referring to fig. 1, 2 and 3, the present embodiment provides a steam condensing device 100 for low-oil content plant volatile oil, which includes an outer cylinder 110, a conical inner cylinder 120, a spiral deflector 130, an upper cover 140 and a lower cover 150.
In this application, urceolus 110 is hollow drum structure, toper inner tube 120 installs in urceolus 110, spiral guide plate 130 spiral installs in the surface of toper inner tube 120, cooling water export 112 has been seted up at the top of urceolus 110, cooling water import 111 and oily water mixture export 113 have been seted up to the bottom of urceolus 110, urceolus 110 is from top to bottom closed by upper cover 140 and lower closing cap 150 respectively, the bottom of toper inner tube 120 is provided with steam distribution dish 121, the top of toper inner tube 120 is provided with steam overflow pipe 122, be provided with stopper 123 in the steam overflow pipe 122, have between stopper 123 and the steam overflow pipe 122 and supply steam exhaust overflow clearance 124.
Cooling water enters from the bottom of the outer cylinder 110, rises along with the spiral guide plate 130 in a spiral manner, and is discharged from the cooling water outlet 112 at the top of the outer cylinder 110. The steam mixed with the volatile oil discharged from the extraction tank 210 enters the conical inner cylinder 120 from the steam inlet of the steam distribution plate 121, the steam distribution plate 121 is arranged in the lower sealing cover 150, after the steam is condensed in the conical inner cylinder 120, an oil-water mixture is formed and discharged from the oil-water mixture outlet 113, and part of uncondensed steam is discharged from the steam overflow pipe 122 through the steam outlet of the upper sealing cover 140. In this application, through setting up toper inner tube 120, the diameter of toper inner tube 120 reduces gradually along the bottom to the top for steam is in toper inner tube 120 internal motion in-process, constantly with the lateral wall contact condensation formation oil water mixture of toper inner tube 120 drop in lower closing cap 150 and flow out through oil water mixture export 113. Meanwhile, compared with the straight barrel, the arrangement of the conical inner barrel 120 is easy to show a chimney effect due to steam flow, and the straight barrel can easily cause steam to quickly overflow from the straight barrel, so that steam with volatile oil can escape. In this application, the tapered inner barrel 120 is used to present an approximately 50 ° oblique angle to the horizontal, and steam is first contacted with the inner barrel oblique wall so that the steam changes direction of motion and contacts the inner barrel wall more broadly to rapidly condense. At this time, volatile oil on the inner wall is collected by water drops from steam scouring and continuous condensation, and the water drops containing the volatile oil vertically drop under the action of gravity, so that the factor of the volatile oil on the wall is reduced. Meanwhile, the flow rate of steam can be further slowed down through the arrangement of the stopper 123 arranged in the steam overflow pipe 122, steam escape in the conical inner cylinder 120 is reduced, and the amount of steam entering the subsequent tail gas condenser is reduced, so that the problem that the steam is stained with walls in the tubular tail gas condenser is effectively reduced, and the collection amount of volatile oil is improved.
Specifically, referring to fig. 1 and 4 in combination, in the present application, the stopper 123 includes a gap forming part 1231, a first tip 1232 and a second tip 1233, and the first tip 1232 and the second tip 1233 are connected to both ends of the gap forming part 1231, respectively. The gap forming part 1231 is generally cylindrical, and the first tip 1232 and the second tip 1233 are formed in a conical structure, the first tip 1232 is located at the bottom of the gap forming part 1231 and can be inserted into the upper part of the conical inner cylinder 120, and the first tip 1232 is configured to split the steam, so as to change the flow direction of the steam directly upwards, and make the steam stay in the conical inner cylinder 120 as much as possible for condensation, while the uncondensed steam is discharged from the overflow gap 124. The second tip 1233 is located at the top of the gap forming part 1231 and protrudes from the top of the steam overflow pipe 122, which can ensure that the flow passage of the overflowed steam is enlarged, and the flow speed of the steam is further reduced, so that the overflowed steam is condensed into liquid again, and the condensed liquid in the steam overflow pipe 122 can fall down along the second tip 1233 and is not accumulated in the steam overflow pipe 122.
Further, in the present application, the shape of the steam overflow pipe 122 may be a straight pipe or an inverted cone, which is shown as a typical non-limiting example, referring to fig. 5 and 6, when the steam overflow pipe 122 is an inverted cone, the diameter of the steam overflow pipe 122 gradually decreases along the direction from the top to the bottom of the tapered inner cylinder 120, the minimum diameter of the steam overflow pipe 122 is slightly larger than the diameter of the gap forming part 1231, the stopper 123 further includes a fixing piece 1234, the top of the outer cylinder 110 is provided with a disc 114, the disc 114 is located at the top of the steam overflow pipe 122, the gap forming part 1231 extends out of the steam overflow pipe 122, and the gap forming part 1231 is connected to the disc 114 through the fixing piece 1234; specifically, the fixing plate 1234 is in a vertical structure to form an L shape, one end of the fixing plate 1234 is connected with the top of the steam overflow pipe 122, the other end of the fixing plate 1234 is connected with the disc 114 through a bolt 1235, the fixing plate 1234 adopts a double-spring structure, the double-spring structure comprises a first elastic member 1236 and a second elastic member 1237, the first elastic member 1236 is arranged between the bolt 1235 and the fixing plate 1234, the second elastic member 1237 is arranged between the bottom of the fixing plate 1234 and the disc 114, the first elastic member 1236, the fixing plate 1234, the second elastic member 1237 and the disc 114 are fixed through the bolt 1235, and three fixing plates 1234 which are fixedly arranged at an angle of 120 DEG are arranged on the disc 114 and used for fixing the stopper 123 to enable the stopper 123 to work stably; preferably, the first elastic member 1236 and the second elastic member 1237 are wave springs. The wave spring is made of stainless steel, and good vibration reduction effect can be achieved by utilizing wave elasticity, so that the stopper 123 is stable in operation. Meanwhile, the fixing bolt can be adjusted by the torsion wrench to adjust the overflow clearance 124 between the stopper 123 and the steam overflow pipe 122. Meanwhile, through the scalability of the wave spring, the steam pressure in the conical inner cylinder 120 can automatically move upwards when the steam pressure is overlarge, and the overflow clearance 124 space is enlarged to realize automatic pressure relief.
In addition, referring to fig. 1 and 7 in combination, the steam distribution plate 121 of the present application may enable steam to be regularly distributed, specifically, the steam distribution plate 121 includes an air inlet pipe 126, a distribution manifold 127 and a distribution air tap 128, the distribution manifold 127 is an annular pipe, the distribution manifold 127 is communicated with the air inlet pipe 126, and the distribution air tap 128 is multiple and uniformly distributed and communicated with the distribution manifold 127. Vapor containing volatile oil enters from the air inlet pipe 126 and flows into the annular distribution manifold 127, and is sprayed into the conical inner cylinder 120 through the distribution air nozzles 128. In this application, the distribution air nozzle 128 includes a horizontal portion 1281, a vertical portion 1282, and an inclined portion 1283, two ends of the vertical portion 1282 are respectively communicated with the horizontal portion 1281 and the inclined portion 1283, the horizontal portion 1281 is communicated with the distribution manifold 127, and the inclined portion 1283 is inclined downward toward the axis of the tapered inner cylinder 120. In this application, by setting the inclined part 1283 to be inclined, preferably, the inclined part 1283 is inclined by 120 °, steam can be sprayed downward, and the downward spraying can slow down the flow velocity of steam due to the upward movement direction of the steam, so that the condensation time is increased by reducing the flow velocity in the conical inner cylinder 120. Meanwhile, when the oil-water mixture is accumulated at the oil-water mixture outlet 113 at the bottom of the outer barrel 110, the steam can be sprayed downwards and can enter the oil-water mixture and overflow, so that the steam can be quickly cooled and condensed, and meanwhile, the irregular flow of the steam can be avoided due to the fact that the steam is sprayed at a specific angle.
The working principle of the steam condensing device 100 for low-oil-content plant volatile oil provided by the application is as follows: the steam containing volatile oil enters the conical inner barrel 120 from the steam distribution plate 121, cooling water enters the area between the outer barrel 110 and the conical inner barrel 120 from the cooling water inlet, and gradually rises along with the spiral guide plate 130 and finally is discharged from the cooling water outlet 112, the cooling water condenses the steam in the conical inner barrel 120 through heat transfer, the condensed oil-water mixture directly falls to the bottom of the outer barrel 110, the steam moves from bottom to top, when the steam moves to the blocker 123, the blocker 123 can block the steam to move continuously and split the steam, so that the steam is discharged from the narrow overflow gap 124, the arrangement of the blocker 123 is favorable for reducing the flow rate of the steam, the steam is quickly condensed into water in the conical inner barrel 120, the condition that the volatile oil in the steam is stained with a wall can be effectively reduced, the volatile oil can fall off the stained with the wall by means of gravity and scouring, and the collection amount of the volatile oil is improved.
Second embodiment
Referring to fig. 8, the present embodiment provides a collection system 200 for low oil content plant volatile oil, which includes a steam condensing device 100 for low oil content plant volatile oil, an extraction tank 210, an exhaust condensing device 220, a cooler 230, an oil receiving device 240, and a control system (not shown) in the first embodiment.
The extracting tank 210 is used for extracting plant materials with low oil content, and the specific structure of the extracting tank is not limited herein, and can be referred to as the existing extracting tank 210.
The tail gas condensing means 220 is adapted to re-condense part of the steam escaping from the steam condensing means, the tail gas condensing means 220 being provided with a tail gas inlet 221 and a condensate outlet 222, it being understood that the tail gas condensing means 220 is also conventionally provided with an inlet and an outlet for a cooling medium.
The cooler 230 is used for sufficiently cooling and collecting and standing the oil-water mixture, so that the oil-water mixture is layered, and the collection of the volatile oil is realized. The cooler 230 is provided with an oil-water mixture inlet 231, an aromatic water outlet 232, a volatile oil outlet 233, and a heavy oil outlet 234.
The oil collecting device 240 is used for collecting oil at the upper layer of the cooler 230.
In this application, the extraction tank 210 is communicated with the steam distribution plate 121, the tail gas inlet 221 is communicated with the steam overflow pipe 122, the oil-water mixture inlet 231 is simultaneously communicated with the oil-water mixture outlet 113 and the condensate outlet 222, the oil collecting device 240 is communicated with the volatile oil outlet 233, and the aromatic water outlet 232 is communicated with the extraction tank 210. The pipeline at the discharge port of the oil-water mixture inlet 231, the aromatic water outlet 232, the volatile oil outlet 233 and the oil receiving device 240 is provided with a sight glass 250. The eye mirror 250 is provided to facilitate the operator to know in time whether the volatile oil is still not collected in the pipeline, so as to determine whether the collection needs to be continued.
The control system comprises a plurality of temperature sensors and a plurality of flow controllers, wherein T in fig. 8 is the temperature sensor, and V is the flow controller, so that the temperature and the flow of the whole system can be controlled by the temperature sensors and the flow controllers, and real-time adjustment and accurate control are realized. Specifically, the cooling water outlet 112, the oil-water mixture outlet 113 and the aromatic water outlet 232 are provided with temperature sensors, and flow controllers are provided at the pipelines of the steam distribution plate 121 and the cooling water outlet 112. It should be understood that the temperature sensor and the flow controller may be disposed on other pipelines where temperature or flow measurement is required, and the number of the temperature sensor and the flow controller is not limited in the present application.
The application provides a collecting system 200 for low oil content plant volatile oil can realize extracting and collecting volatile oil in the low oil content plant, can reduce the wall situation of being stained with of volatile oil through the structural design who is used for low oil content plant volatile oil's steam condensing equipment 100 in the condensation process, improves volatile oil's collection volume, utilizes control system to control key parameter simultaneously, has guaranteed product quality, reduces extravagant when improving product quality, and overall structure is simple to arrange compact reliable operation.
In summary, the embodiment of the invention provides the steam condensing device 100 for low-oil-content plant volatile oil, which can effectively reduce the wall sticking condition of the volatile oil in steam by arranging the conical inner cylinder 120, and the volatile oil can drop the volatile oil stuck on the wall by means of gravity and scouring, so that the collection amount of the volatile oil is improved. Meanwhile, the stopper 123 can slow down the flow rate of steam, so that the steam is quickly condensed into water in the conical inner cylinder 120, and the amount of the steam entering the subsequent tail gas condenser is reduced, so that the condition that the steam is stained with walls in the tubular tail gas condenser is effectively reduced. The steam distribution plate 121 can make steam evenly sprayed downwards, avoid irregular steam flow, and effectively prolong the extension time of the steam in the conical inner cylinder 120. The collection system 200 for low-oil-content plant volatile oil can achieve extraction and collection of volatile oil in low-oil-content plants, and meanwhile, the control system is utilized to control key parameters, so that product quality is guaranteed, waste is reduced while product quality is improved, and the whole structure is simple, compact in arrangement and reliable in operation.
The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the scope of the present invention should be included in the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (7)
1. The steam condensing device for the low-oil-content plant volatile oil is characterized by comprising an outer barrel, a conical inner barrel and a spiral guide plate, wherein the diameter of the conical inner barrel gradually reduces from the bottom to the top, the conical inner barrel is arranged in the outer barrel, the spiral guide plate is spirally arranged on the outer surface of the conical inner barrel, a cooling water outlet is formed in the top of the outer barrel, a cooling water inlet and an oil-water mixture outlet are formed in the bottom of the outer barrel, a steam distribution disc is arranged at the bottom of the conical inner barrel, a steam overflow pipe is arranged at the top of the conical inner barrel, a stopper is arranged in the steam overflow pipe, and an overflow gap for discharging steam is formed between the stopper and the steam overflow pipe;
the stopper includes a gap forming part, a first tip and a second tip, which are connected to both ends of the gap forming part, respectively;
the stopper further comprises an L-shaped fixing piece, a disc is arranged at the top of the outer barrel, the disc is positioned at the top of the steam overflow pipe, the gap forming part extends out of the steam overflow pipe, one end of the fixing piece is connected with the top of the steam overflow pipe, and the other end of the fixing piece is connected with the disc through a bolt; a first elastic piece is arranged between the fixing piece and the bolt, a second elastic piece is arranged between the fixing piece and the disc at the bottom, and the bolt sequentially passes through the first elastic piece, the fixing piece and the second elastic piece and is fixed on the disc; the first elastic piece and the second elastic piece are wave springs;
the steam overflow pipe is an inverted cone pipe, the diameter of the steam overflow pipe gradually reduces along the direction from the top to the bottom of the conical inner barrel, the minimum diameter of the steam overflow pipe is larger than the diameter of the gap forming part, and the stopper is movably clamped in the steam overflow pipe.
2. The vapor condensing device for low-oil content plant volatile oil of claim 1, wherein the vapor distribution tray comprises an air inlet pipe, a distribution main pipe and a distribution air tap, the distribution main pipe is an annular pipe, the distribution main pipe is communicated with the air inlet pipe, and the distribution air tap is a plurality of air taps and is uniformly distributed and communicated with the distribution main pipe.
3. The vapor condensing device for low-oil content plant volatile oil of claim 2, wherein the distribution air tap comprises a horizontal portion, a vertical portion and an inclined portion, both ends of the vertical portion are respectively communicated with the horizontal portion and the inclined portion, the horizontal portion is communicated with the distribution manifold, and the inclined portion is inclined downward toward the axis of the conical inner cylinder.
4. A collection system for low oil content plant essential oils, characterized in that it comprises a steam condensing device for low oil content plant essential oils according to any of claims 1-3.
5. The collection system for low oil content plant essential oils as set forth in claim 4, further comprising an extraction tank, a tail gas condensing unit, a cooler, and an oil receiving unit; the tail gas condensing device is provided with a tail gas inlet and a condensate outlet; the cooler is provided with an oil-water mixture inlet, an aromatic water outlet, a volatile oil outlet and a heavy water outlet;
the extraction tank is communicated with the steam distribution plate, the tail gas inlet is communicated with the steam overflow pipe, the oil-water mixture inlet is simultaneously communicated with the oil-water mixture outlet and the condensate outlet, the oil collecting device is communicated with the volatile oil outlet, and the aromatic water outlet is communicated with the extraction tank.
6. The collection system for low oil content plant essential oils of claim 5 further comprising a control system comprising a plurality of temperature sensors and a plurality of flow controllers, wherein the temperature sensors are provided at the cooling water outlet, the oil-water mixture outlet and the aromatic water outlet, and wherein the flow controllers are provided at the pipelines of the steam distribution tray and the cooling water outlet.
7. The collection system for low oil content plant volatile oil of claim 5, wherein the sight glass is disposed on the pipeline at the outlet of the oil-water mixture inlet, the aromatic water outlet, the volatile oil outlet, and the oil collecting device.
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| CN202210098050.2A CN114618184B (en) | 2022-01-27 | 2022-01-27 | A steam condensing equipment and collecting system for low oil content plant volatile oil |
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Effective date of registration: 20230608 Address after: No. 125, Xinqi Zhoujisheng Road, northern suburb of Nanchang County, Nanchang, Jiangxi Province 330200 Applicant after: JIANGXI NANCHANG JISHENG PHARMACEUTICAL Co.,Ltd. Address before: Building 25, No. 125, zhoujisheng Road, Xinqi, Ganjiang new area, Nanchang, Jiangxi 330115 Applicant before: Jiangxi Jiangzhong Jihai Pharmaceutical Co.,Ltd. |
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