CN113214905A

CN113214905A - Flower essential oil supercritical extraction equipment

Info

Publication number: CN113214905A
Application number: CN202110703014.XA
Authority: CN
Inventors: 孙如兵; 赵亚平; 孙明华; 黄书成; 高小红
Original assignee: Nantong Ruizhi Supercritical Development Of Technology Co ltd
Current assignee: Nantong Ruizhi Supercritical Development Of Technology Co ltd
Priority date: 2021-06-24
Filing date: 2021-06-24
Publication date: 2021-08-06

Abstract

The invention provides improved flower essential oil extraction equipment, which comprises a working unit and a control box, wherein the working unit is connected with the control box, the working unit comprises a storage tank, a condenser, a pressurizing device, a heating device, an extraction kettle, a raw material box, a separation device, a recovery device and a compression device are connected and installed at the rear part of the storage tank through a pipeline, a pressure gauge is further arranged on each section of the pipeline, an ultrahigh pressure automatic pressure valve is fixedly arranged on the pipeline between the storage tank and the recovery device and between the recovery device and the separation device, an ultrahigh pressure pump is fixedly arranged on the pipeline between the condenser and the pressurizing device, check valves are further arranged between the pressurizing device and the heating device and between the separation device and the recovery device and between the recovery device and the compression device, the compression device is fixedly arranged on the pipeline between the storage tank and a liquefaction device, and temperature sensors are further arranged on the extraction kettle and the separation device, the pressure of the ultrahigh pressure automatic pressure valve, the ultrahigh pressure pump and the extraction kettle can reach 120 MPA.

Description

Flower essential oil supercritical extraction equipment

Technical Field

The invention relates to the field of supercritical extraction, in particular to flower essential oil supercritical extraction equipment.

Background

The supercritical fluid is a supercritical fluid, is a non-gaseous and non-liquid state between gas and liquid, can exist only when the temperature and the pressure of the substance exceed critical points, has higher density and is similar to liquid, and the viscosity of the supercritical fluid is closer to gas, so the supercritical fluid is an ideal extracting agent, and in the process of producing the flower essential oil, the supercritical extraction equipment is generally used for extracting the essential oil.

At present, the pressure of flower essential oil supercritical extraction equipment on the market is usually about 50MPA, but the principle of the supercritical carbon dioxide fluid extraction and separation process is carried out by utilizing the relation between the dissolving capacity and the density of a supercritical fluid, namely, the influence of the pressure and the temperature on the dissolving capacity of the supercritical fluid, and the higher the pressure is, the stronger the penetrating power of the carbon dioxide fluid is, and the stronger the dissolving capacity is. Therefore, the common flower essential oil supercritical extraction equipment on the market at present cannot realize more efficient utilization in a plurality of working scenes, and the extraction efficiency is lower.

Disclosure of Invention

Technical problem to be solved

In view of the defects in the prior art, the invention aims to provide an improved flower essential oil supercritical extraction device, so that the extraction pressure can be increased, the penetrating power of carbon dioxide fluid can be enhanced, and the dissolving capacity can be further improved.

(II) technical scheme

The technical scheme adopted by the invention for solving the technical problems is as follows: the improved flower essential oil extraction equipment comprises a working unit and a control box, wherein the working unit is connected with the control box, the working unit comprises a storage tank, a condenser, a pressurizing device, a heating device, an extraction kettle, a raw material tank, a separating device, a recovering device and a compressing device are connected and installed behind the storage tank through pipelines, pressure gauges are further arranged on all sections of the pipelines, ultrahigh-pressure automatic pressure valves are fixedly arranged on the pipelines between the storage tank and the recovering device and between the storage tank and the separating device, ultrahigh-pressure pumps are fixedly arranged on the pipelines between the condenser and the pressurizing device, check valves are further arranged between the pressurizing device and the heating device, between the separating device and the recovering device and between the recovering device and the compressing device, the compressing device is fixedly arranged on the pipeline between the storage tank and the liquefying device, and temperature sensors are further arranged on the extraction kettle and the separating device, the pressure of the ultrahigh pressure automatic pressure valve, the ultrahigh pressure pump and the extraction kettle can reach 120 MPA.

Further, the ultra-high pressure pump comprises a pump body, an auxiliary valve, a signal sensor and a pressing sleeve nut, wherein the pressing sleeve nut is in threaded connection with the left side of the pump body, the auxiliary valve is fixedly arranged on the right side of the pump body, the signal sensor is respectively arranged on the pump body and the auxiliary valve, the motor is connected with the control box through the signal sensor, an inner core assembly is arranged in the pump body along the axial direction and comprises a pressing sleeve A, a plunger A and an inner cavity, the plunger A penetrates through the pressing sleeve A, the plunger A is in clearance fit with the pressing sleeve A, the pressing sleeve A is in threaded connection with the pump body, a pressing sleeve B, a spacer ring, a filler, a metal pad II and a metal pad I are sequentially and fixedly arranged in the inner cavity from left to right along the axial direction of the plunger A, the auxiliary valve comprises a joint A, a pressing sleeve C, a valve seat A, a valve seat sleeve, a valve ball and a hydraulic cylinder body, and the hydraulic cylinder body is in threaded connection with the pump body, the valve seat A is arranged in the inner cavity of the cylinder body of the hydraulic cylinder along the radial direction of the plunger A, the valve seat sleeve is fixedly arranged on the valve seat A, the valve seat A and the valve seat sleeve are arranged in pair, the pressing sleeve C is arranged on the valve seat sleeve and the valve seat A, a valve seat cushion is arranged between the valve seat A and the valve seat sleeve, the valve seat A, the pressing sleeve C and the valve seat sleeve are provided with through holes, the inner diameter of the valve seat sleeve is larger than that of the valve seat A, a valve ball is arranged in the middle of the inner diameter of the valve seat sleeve, the joint is arranged at the top of the pressing sleeve C and is in threaded connection with the cylinder body of the hydraulic cylinder, and a sealing ring B is arranged between the joint and the pressing sleeve C;

the ultrahigh pressure valve comprises a handle, a valve rod, a valve body, a valve base, a joint B and a signal sensor, wherein the joint B is connected with a pipeline, a through hole is formed between the left end of the valve body and the inner wall of the valve body, the signal sensor is installed on the valve rod, the signal sensor is connected with a control box, the valve rod is arranged in the valve body, a valve rod nut is movably sleeved on the valve rod, the diameter of the part, sleeved with the valve rod nut, of the valve rod is larger than the diameter of the other part of the valve rod, the middle part of the valve rod nut is screwed with a locking nut, the lower end of the valve rod nut is screwed with the valve body, a sealing component A is fixedly arranged on the inner wall of the valve body at the position corresponding to the lower part of the screwed part of the valve rod nut and the valve body, the sealing components A are respectively a metal sealing ring A, a sealing gasket A and a rubber sealing ring A from top to bottom, and the inner diameters and outer diameters of the metal sealing ring A are the same, the metal sealing ring A, the sealing gasket A and the rubber sealing ring A are in clearance fit with the valve rod, a valve seat B is fixedly arranged on the inner wall of the valve body at the position corresponding to the bottom of the valve rod, the valve seat B is provided with a through hole, the valve seat B is in interference fit with the inner wall of the valve body, the metal sealing ring B is arranged below the valve seat B, the inner diameter of the metal sealing ring B is larger than that of the valve seat B, the lower end of the metal sealing ring B extends downwards along the radial direction of the valve body, the valve base is arranged below the metal sealing ring B, a through hole is arranged in the middle of the valve base, the valve base is in threaded connection with the valve body, the top end of the valve base is in a step shape and is matched with the metal sealing ring B, the joints B are respectively arranged on the left side of the valve body and the lower end of the valve base through joint pressing caps, and the inner side of the joint B is clamped with the inner side of the joint pressing caps, the diameter of the clamping part of the joint is larger than that of other parts of the joint;

the extraction kettle comprises a barrel body, a charging barrel, an upper sealing cover, a lower sealing cover and a sealing component B, wherein a plurality of crushing devices are arranged on the inner wall of the charging barrel from top to bottom, the crushing devices are connected with a control cabinet through sensors, the sealing component B further comprises a shell, a sealing cover A, a plug, a first plunger and a second plunger, the top end of the outer wall of the shell of the sealing component B extends 3/4 of the thickness of the barrel wall of the barrel body extending outwards in the radial direction of the barrel body, the plug is connected with the sealing cover A, the top end of the shell of the sealing component A is clamped with the upper sealing cover, two sides of the shell of the sealing component A are provided with a CO2 fluid inlet, the CO2 fluid inlet has a reverse angle of 150 degrees along the horizontal direction, the wall thickness of the shell of the sealing component A is consistent with the wall thickness of, the outer diameter of the sealing cover A is the same as the inner diameter of the sealing assembly A shell, inlets corresponding to a CO2 fluid inlet are arranged on two sides of the plunger, a sealing gasket B is arranged between the plunger I and the sealing cover A, a discharging ring is arranged at the bottom of the outer surface of the plunger I, a filtering layer is arranged at the junction of the plunger I and the plunger II, the filtering layer is buckled with the plunger II through an upper joint of a charging barrel, the plunger I and the plunger II are integrated into a whole, the plunger I and the plunger II are hollow, a plunger sealing ring is arranged on the outer surface of the plunger, the thickness of the barrel wall of the barrel body is 1/4 of the diameter of the barrel body, the bottom of the barrel body is conical, an annular toothed plate is arranged between the charging barrel and the barrel body, the ring is meshed with the outer surface of the charging barrel, the annular toothed plate is connected with a motor, a sensor is arranged on the motor, the sensor is connected with a control cabinet, and the height of the charging barrel body is the same as the height of the barrel body, the filter plate I, the filter plate II and the filter screen compression ring are sequentially arranged on the bottom in the charging barrel from top to bottom, the filter plate I and the filter plate II are connected through a charging barrel lower joint in a buckling mode, the charging barrel lower joint is fixedly arranged on the inner wall of the charging barrel, a sealing ring C is arranged at the position, corresponding to the upper end of the charging barrel lower end outer surface, of the charging barrel joint, the filter screen compression ring is arranged below the filter plate II in a detachable mode, the bottom of the charging barrel is conical, the conical angle is 150 degrees, the lower sealing cover is detachably and fixedly arranged at the bottom of the charging barrel, the included angle between the lower sealing cover and the bottom of the charging barrel is 30 degrees, the top of the lower sealing cover is in an inverted cone shape, the inverted cone shape is 150 degrees, and the inverted cone shape is a CO2 fluid outlet.

Furthermore, the bottom of the ultrahigh pressure valve body is conical, the conical angle is 90 degrees, a guide sealing block extends from the side edge of the conical shape, the diameter of the guide sealing block is smaller than the inner diameter of the valve seat, and a through hole is formed in the side face of the guide sealing block.

Further, the valve seat is provided with a conical contact surface which is attached to the conical surface at the bottom of the valve rod.

Furthermore, a sealing ring is arranged on the outer surface of the conical surface at the bottom of the valve body.

Furthermore, a sealing ring C is arranged on the sealing cover A.

Furthermore, the end heads of the two ends of the upper joint and the lower joint of the charging barrel are hook-shaped.

The invention has the advantages that the ultrahigh pressure valve with the pressure reaching 120MPA is arranged at each section of the extraction device at each section, the ultrahigh pressure pump with the pressure reaching 120MPA is arranged on the pipeline between the condenser and the pressurizing device, and the extraction kettle with the pressure bearing 120MPA is adopted, so that the extraction pressure of the extraction device can be maintained at 110MPA when the extraction device works, thereby improving the extraction pressure, enhancing the penetrating power of carbon dioxide fluid and further improving the dissolving capacity.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is an overall block diagram of the present invention;

FIG. 2 is a front cross-sectional view of the ultra high pressure pump of the present invention;

FIG. 3 is a schematic view of an inner core assembly for an ultra high pressure pump according to the present invention;

FIG. 4 is a sectional view in the A-A direction of the ultrahigh pressure automatic valve of the present invention;

FIG. 5 is a plan view of the ultrahigh pressure automatic valve of the present invention;

FIG. 6 is a partially enlarged view of the ultrahigh pressure automatic valve of the present invention;

FIG. 7 is a front sectional view of an extraction vessel according to the present invention;

FIG. 8 is a partial schematic view of extraction vessel seal assembly B of the present invention;

FIG. 9 is a front view of a ring-shaped toothed plate in the extraction vessel of the present invention;

FIG. 10 is a cross-sectional view of the cartridge of the present invention taken along the direction F-F.

In the figure: a working unit 1; a control box 2; a storage tank 11; a condenser 12; a pressurizing device 13; a heating device 14; an extraction kettle 15; a raw material tank 16; a separation device 17; a recovery device 18; a compression device 19; a pressure gauge 101; an ultrahigh-pressure automatic valve 102; an ultra high pressure pump 103; a check valve 104; a temperature sensor 105; a flow meter 106; a pump body 1031; an auxiliary valve 1032; a signal sensor 1033; a gland nut 1034; an inner core assembly 10311; a pressing sleeve A10311-1; a plunger A10311-2; a lumen 10311-3; a pressing sleeve B10311-4; spacer rings 10311-5; a filler 10311-6; a second metal pad 10311-7; a first metal pad 10311-8; sealing rings A10311-9; an auxiliary valve 1032; connector a 10321; a press sleeve C10322; valve seat a 10323; a valve seat sleeve 10324; a valve ball 10325; a hydraulic cylinder block 10326; a valve seat pad 10327; a seal ring B10328; a handle 1021; a valve stem 1022; a valve body 1023; a valve base 1024; a joint B1025; a stem nut 10221; a locking nut 10222; a metal seal ring a 10223; gasket seal a 10223-1; rubber seal ring A10223-2; valve seat B10224; seal ring B10224-1; a connector press cap 10251; a nipple seal 10252; a guide seal block 10225; via 10225-1; a cylinder 151; a cartridge 152; an upper seal cover 153; a lower sealing cap 154; a seal assembly B155; a crushing device 1521; seal assembly B housing 1551; a sealing cover 15521; a plug 1553; plunger one 1554; a second plunger 1555; a CO2 fluid inlet 1556; a seal B1557; a discharge ring 1558; a filtration layer 1560; a cartridge top connection 1559A; a cartridge lower adaptor 1559B; plunger seal ring 15510; a ring toothed plate 1521; a motor 1523; a first filter plate 1561; a filter plate layer 1562; a filter screen compression ring 1563; a seal ring C1564; CO2 outflow 1541 and sealing ring C1552-1.

Detailed Description

For further explanation of the various embodiments, the drawings which form a part of the disclosure and which are incorporated in and constitute a part of this specification, illustrate embodiments and, together with the description, serve to explain the principles of operation of the embodiments, and to enable others of ordinary skill in the art to understand the various embodiments and advantages of the invention, and, by reference to these figures, reference is made to the accompanying drawings, which are not to scale and wherein like reference numerals generally refer to like elements.

According to an embodiment of the present invention, there is provided a petal essential oil supercritical extraction apparatus.

The invention will now be further described with reference to the accompanying drawings and detailed description, as shown in fig. 1-10.

Fig. 1 shows a schematic structural diagram of an extraction device, which comprises two parts, namely a working unit 1 and a control box 2, wherein the working unit 1 is connected with the control box 2, and the whole working unit 1 is controlled to work through the control box 2. The working unit comprises a storage tank 11, a condenser 12, a pressurizing device 13, a heating device 14, an extraction kettle 15, a raw material box 16, a separating device 17, a recovery device 18 and a compression device 19 which are respectively connected and installed behind the storage tank 11 through pipelines, CO2 gas is changed into fluid through the condenser 12 and then passes through the pressurizing device 13 and the heating device 14, so that CO2 fluid obtains corresponding temperature and pressure and reaches the extraction kettle 15, meanwhile, the raw material box 16 puts petal raw materials into the extraction kettle 15, so that the CO2 fluid and the petal raw materials are reacted in the extraction kettle 15, then the CO2 fluid fully reacted with petals enters the separating device 17 to separate petal essential oil from CO2 fluid, the separated CO2 fluid enters the recovery device 18, and meanwhile, the CO2 fluid which is not fully reacted with the petal raw materials in the extraction kettle 15 directly enters the recovery device 18 from the extraction kettle 15, the recovery unit 18 recovers the CO2 fluid and returns the CO2 fluid to the storage tank 11 through the compression unit 19. On the other hand, in order to maintain the pressure in the extraction tank 15 at 110MPA during the reaction, a 120MPA ultrahigh-pressure automatic pressure valve 102 is fixedly provided in a pipe between the storage tank 11 and the recovery device 18 and the separation device 17, and a 120MPA ultrahigh-pressure pump 103 is fixedly provided in a pipe between the condenser 12 and the pressurizing device 13, and the pressure-receiving capacity of the extraction tank 15 needs to be 120 MPA. Each section of the pipeline is also provided with a pressure gauge 101, so that the pressure of the corresponding device of each pipeline section is monitored. Check valves 104 are provided between the pressurizing device 13 and the heating device 14, between the separating device 17 and the recovering device 18, and between the recovering device 18 and the compressing device 19, to prevent the liquid from flowing back. Temperature sensors 105 are also provided on the extraction tank 15 and the separation device 17 to monitor the temperature.

The structure schematic diagram of the ultra-high pressure pump 103 in fig. 2 comprises a pump body 1031, an auxiliary valve 1032, a signal sensor 1033, the auxiliary valve 1032 is fixedly arranged on the right side of the pump body 1031, the signal sensor 1033 is respectively arranged on the pump body 1031 and the auxiliary valve 1032, the motor 1523 is connected with a control box 2 through the signal sensor 1033, the ultra-high pressure pump 103 further comprises a core assembly 10311, fig. 3 is a schematic diagram of the core assembly 10311 of the ultra-high pressure pump, the core assembly 10311 is arranged along the axial direction of the pump body 1031, the core assembly 10311 comprises a pressing sleeve a10311-1, a plunger a10311-2, an inner cavity 10311-3, a plunger a10311-2 penetrates through the pressing sleeve a10311-1, the plunger a10311-2 is in clearance fit with the pressing sleeve a10311-1, the pressing sleeve a10311-1 is in threaded with the pump body 1031, the pump body 10311-1 is controlled by the signal sensor 1033 through the control box 2, the signal sensor 1033 is controlled by the control box 2, so as to control the motor 1523 to drive the auxiliary valve 1032 to complete the work of air intake and exhaust, and push the plunger 1031 a pump body 1031 and a pump body 1031A and a pump body 1032 to complete the work of the intake and exhaust of the intake and the exhaust of the auxiliary valve 1032 10311-1. The internal cavity of the pump body 1031 is fixedly provided with a pressing sleeve B10311-4, a spacer ring 10311-5, a packing 10311-6, a metal pad two 10311-7 and a metal pad one 10311-8 from left to right in sequence along the axial direction of a plunger A10311-2, the tightness between the plunger A10311-2 and the pump body 1031 in the pump body 1031 is ensured, the ultra-high pressure pump 103 further comprises a pressing sleeve nut 1034 which is screwed on the left side of the pump body 1031, the tightness between the pump body 1031 and the pressing sleeve A10311-1 is ensured by the radial force applied to the left end of the pump body 1031 by the pressing sleeve nut 1034, the auxiliary valve 1032 comprises a connector A10321, a pressing sleeve C10322, a valve seat A10323, a valve seat sleeve 10324, a valve ball 10325, a hydraulic cylinder 10326, the hydraulic cylinder 10326 and the pump body 1031 are screwed, on one hand, the disassembly and maintenance are convenient, on the other hand, the connection stability between the auxiliary valve 1032 and the pump body 10326 is ensured, the valve 10323 is sequentially arranged in the internal cavity of the hydraulic cylinder 10326 along the radial direction of the plunger A10323, the valve seat sleeve 10324 is fixedly arranged on the valve seat A10323, the valve seat A10323 and the valve seat sleeve 10324 are arranged in pair, the pressing sleeve C10322 is arranged on the valve seat A10323 and the valve seat sleeve 10324 to ensure the matching strength between the valve seat A10323 and the valve seat sleeve 10324, a valve seat cushion 10327 is arranged between the valve seat A10323 and the valve seat sleeve 10324 to ensure the sealing between the valve seat A10323 and the valve seat sleeve 10324, the inner diameter of the valve seat sleeve 10324 is larger than the inner diameter of the valve seat A10323, a valve ball 10325 is arranged in the middle of the inner diameter of the valve seat sleeve 10324, so that the contact surface of the valve seat A10323 and the valve ball 10325 has an inclined surface, thereby having a function of a check valve, and the contact between the inclined surface and the valve ball 10325 can reduce the degree of wear between the valve ball 10325 and the valve seat a10323, the joint a10321 is provided on the pressure sleeve C10322, and the joint A10321 and the pressing sleeve C10322 are provided with a sealing ring B10328, and the force applied by the screwing of the joint A10321 and the hydraulic cylinder 10326 ensures the strength and stability of the matching between the inner and outer parts of the whole auxiliary valve 1032.

When the pump works, the control box controls the motor 1523 through the signal sensor 1033 so as to control the auxiliary valve 1032 at the lower end to suck air, after the air does work in the pump body 1031, the control box 2 controls the motor 1523 through the signal sensor 1033 so as to control the auxiliary valve 1032 at the upper end to discharge the air, meanwhile, the control box 2 also controls the plunger A10311-2 to reset through the signal controller 1033 on the pump body 1031, so that a circularly reciprocating working state is generated, the pump adopting the structure can obtain the pressure of 120MPA, and a pipeline is connected with the gland A10311-1, so that the CO2 fluid can preliminarily obtain the pressure of 110 Mpa.

FIG. 4 is a sectional view of the ultrahigh pressure automatic valve 102 taken along the direction A-A, the ultrahigh pressure automatic valve 102 includes a handle 1021, a valve stem 1022, a valve body 1023, a valve base 1024, a joint B1025, a signal sensor 1033, the signal sensor 1033 is installed on the valve stem 1022, the signal sensor 1033 is connected with the control box 2, the joint B1025 is connected with a pipeline, the valve stem 1022 is arranged in the valve body 1023, a stem nut 10221 is screwed on the valve stem 1022, so that the valve stem 1022 can reciprocate up and down by screwing, relative to the lifting type reciprocating up and down movement, the screwing up and down reciprocating movement is not easy to lock, and labor is saved, the diameter of the valve stem 1022 of the part sleeved with the stem nut 10221 is larger than the diameter of the other part of the valve stem 1022, so that the strength of the valve stem 2022 can be further enhanced, a locking nut 10222 is screwed in the middle of the stem nut 10221, the lower end of the stem nut 10221 is screwed with the valve body 1023, so that the stability and the connection between the stem nut 10221 and the valve body 1023 are enhanced, the corresponding position below the screw joint of the valve rod nut 10221 and the valve body 10223 is fixedly provided with a sealing assembly A on the inner wall of the valve body 1023, so that the sealing performance of the connection among the valve rod 1022, the valve rod nut 10221 and the valve body 10223 is ensured. A sealing assembly A is respectively a metal sealing ring A10223, a sealing gasket A10223-1 and a rubber sealing ring A10223-2 from top to bottom, the inner diameter and the outer diameter of the sealing assembly A are the same, the inner diameter is in clearance fit with a valve rod 1022, the valve rod can freely move up and down in the inner diameter of the sealing assembly A, a valve seat B10224 is fixedly arranged on the inner wall of a valve body 1023 at the position corresponding to the bottom of the valve rod 1022, the valve seat B10224 is in interference fit with the inner wall of the valve body 1023, the metal sealing ring B10224-1 is arranged below the valve seat B10224, the inner diameter of the metal sealing ring B10224-1 is larger than the inner diameter of the valve seat B10224, on one hand, the sealing performance can be enhanced, and on the other hand, the flow rate of fluid passing through the inner diameter of the valve seat B10224 is ensured. The lower end of a metal sealing ring B10224-1 extends downwards along the radial direction of a valve body 1023, a valve base 1024 is arranged below the metal sealing ring B10224-1, the valve base 1024 is in threaded connection with the valve body 1023, the top end of the valve base 1024 is in a step shape and is matched with the metal sealing ring B10224-1, so that the valve base can be better attached, the sealing stability is higher, a joint B1025 is respectively installed on two sides of the valve body 1023 through a joint pressing cap 10251, the inner side of the joint B1025 is clamped with the inner side of the joint pressing cap 10251, the diameter of the joint B1025 is larger than the diameter of other parts of the joint B1025, the joint B1025 can be better clamped, the stable connection strength is achieved, and the joint B is not prone to falling off.

During operation, CO2 fluid flows in from the joint B1025 at the upper end, at this time, the control box 2 controls the valve rod 1022 to move upwards in the valve body 1023 through the signal sensor 1033, so that the state between the valve seat B10224 and the valve rod 1022 is changed from a closed state to an open state, at this time, CO2 fluid flows out from the joint B1025 at the lower end through a through hole in the middle of the valve seat B10224 and a through hole in the middle of the valve base 1024, after CO2 flows out, the control box 2 controls the valve rod 1022 to move downwards again, so that the position between the valve rod 1022 and the valve seat B10224 is in a closed state again, and therefore CO2 fluid in a pipeline can be locked quickly, pressure value is guaranteed, on the other hand, in order to prevent failure during automatic control of the signal sensor 1033, the handle 1021 is arranged at the top end of the valve rod 1022, and can be operated manually once failure occurs.

In addition, in order to enable the ultrahigh pressure automatic valve to obtain better sealing, the bottom of the valve rod is conical, the conical angle is 90 degrees, a guide sealing block 10225 extends out of the side edge of the conical shape, the diameter of the guide sealing block 10225 is smaller than the inner diameter of the valve seat, and in order to prevent the valve rod from being locked, a through hole 10225-1 penetrating through the side face of the guide sealing block is arranged. In order to strengthen the sealing performance between the bottom of the valve rod and the valve seat B, the valve seat B is provided with a conical contact surface attached to the conical surface at the bottom of the valve rod, and the conical contact surface is in surface contact with the conical contact surface at the bottom of the valve rod, so that the abrasion is reduced at the same time.

Fig. 7 is a main sectional view of an extraction kettle 15, which includes a cylinder 151, a cylinder 152, an upper sealing cover 153, a lower sealing cover 154, and a sealing assembly B155, where the cylinder 155 is disposed in the cylinder 151, a plurality of pulverizing devices 1521 are disposed on an inner wall of the cylinder 152 from top to bottom, the pulverizing devices 1521 are connected to a control cabinet 2 through sensors 1033, when petal raw materials enter the cylinder 152, the control cabinet 2 controls the pulverizing devices 1521 to pulverize the petal raw materials, so that the petal raw materials can react more fully with a CO2 fluid, fig. 8 is a partial schematic view of the sealing assembly B155 of the extraction kettle, the sealing assembly B155 further includes a housing 1551, a sealing cover a1552, a plug 1553, a first plunger 1554, and a second plunger 1555, a top end of the housing 1551 of the sealing assembly B extends to a thickness 3/4 of a cylinder 151 in a radial direction, the plug 1553 is connected to the sealing cover a1552, the top end of the sealing component A shell 1551 is clamped with the upper sealing cover 153, the clamping of the upper sealing cover 153 and the top end of the sealing component A shell 1551 can further enhance the sealing effect, and the sealing cover A1552 cannot be pushed upwards when the interior of the extraction kettle 15 is under high pressure, so that on one hand, the safety under high pressure is ensured, on the other hand, the stability of the pressure in the extraction kettle 15 is facilitated, on the other hand, CO2 fluid inlets 1556 are arranged on two sides of the sealing component A shell 1551, the reverse angle of the CO2 fluid inlets 1556 in the horizontal direction is 150 degrees, the arrangement of the angle of the C02 fluid inlets 150 degrees can ensure that CO2 fluid flows in a relatively continuous, stable and uniform state, the wall thickness of the sealing component A shell 1551 is consistent with that of the barrel body 155151, so that the stability and consistency during matching are ensured, the bottom of the sealing component A shell 1551 is conical, the included angle between the bottom of the sealing component A shell 1551 and the top of the barrel body is 22 degrees, the outer diameter of the sealing cover A1552 is the same as the inner diameter of the sealing A assembly shell 1551, inlets corresponding to a CO2 fluid inlet 1556 are arranged on two sides of the plunger I1554, a CO2 fluid flows into the plunger I1554, a sealing gasket B1557 is arranged between the plunger I1554 and the sealing cover A1552, a discharging ring 1558 is arranged at the bottom of the outer surface of the plunger I1554, the sealing performance is further enhanced, a filtering layer 1560 is arranged at the junction of the plunger I1554 and the plunger II 1555, impurities generated by the CO2 fluid due to circulation use are filtered, the filtering layer 1560 is buckled with the plunger II 1555 through a charging barrel upper joint 1559A, the filtering layer is convenient to detach and clean, the plunger I1554 and the plunger II 1555 are integrated, a plunger sealing ring 15510 is arranged on the outer surface of the plunger II 1555, the sealing performance between the plunger II and the sealing assembly shell B is enhanced, the thickness of the barrel 151 is 1/4 of the diameter of the barrel body, thereby the pressure resistance of the cylinder body is enhanced, the bottom of the cylinder body 151 is conical, an annular toothed plate 1522 is arranged between the charging barrel 152 and the cylinder body 151, the annular toothed plate 1522 is schematically shown in fig. 9, fig. 10 is a sectional view of the charging barrel along the direction of F-F, the annular toothed plate 1522 is engaged with the outer surface of the charging barrel 152, the annular toothed plate 1522 is connected with a motor 1523, a sensor 1033 is arranged on the motor 1523, the sensor 1033 is connected with a control box 2, when the CO2 fluid reacts with the petal raw material, the control box 2 controls the motor 1523 to drive the annular toothed plate 1522 to rotate, so that the charging barrel 152 is driven to rotate by the annular toothed plate 1522, the reaction between the petal raw material and the CO2 fluid is more sufficient, the charging barrel 152 is as high as the cylinder body 151, a first filter plate 1561, a second filter plate 1562 and a filter screen 1563 are sequentially arranged from top to bottom in the charging barrel 152, and the arrangement of the two filter plates can better filter the residues after the reaction, the filter screen compression ring has a positioning effect on a first filter screen and a second filter screen, on the one hand, the sealing performance between the bottom of the second filter screen and a material cylinder can be enhanced, the first filter plate 1561 and the second filter plate 1562 are connected through a material cylinder lower connector 1559B in a buckling mode so as to be convenient to detach and clean, the material cylinder lower connector 1559B is fixedly arranged on the inner wall of the material cylinder 152, a sealing ring C1564 is arranged at the position, corresponding to the upper end of the material cylinder lower connector 1559B, of the outer surface of the lower end of the material cylinder 152, the sealing performance between the material cylinder and the cylinder body is improved, the filter screen compression ring 1563 is detachably arranged below the second filter plate 1562, the bottom of the cylinder body 151 is conical, the conical angle is 150 degrees, the lower sealing cover 154 is detachably and fixedly arranged at the bottom of the cylinder body 151, the included angle between the lower sealing cover 154 and the bottom of the cylinder body 151 is 30 degrees, the top of the lower sealing cover 154 is in an inverted cone shape, and the inverted cone shape is 150 degrees, the inverted cone with the inverted conical bottom being the CO2 fluid outlet 1541, the 150-degree inverted cone enables the C02 fluid to be completely excluded without forming liquid accumulation at the bottom, thereby affecting the quality of a later batch.

During operation, earlier open seal assembly B and last sealed lid, add the petal raw materials in the feed cylinder, put into the barrel with the feed cylinder again, cover seal assembly B and last sealed lid again, a plurality of reducing mechanism that feed cylinder inner wall top-down set up this moment begin work under the control of control box again, smash the petal raw materials, CO2 fluid passes through plunger one through the CO2 fluid inlet of sealed lid A both sides after that, filter plate layer and plunger two flow into the feed cylinder in, react in the feed cylinder with the petal raw materials, control box control motor drives annular toothed plate and begins to rotate simultaneously, the rotation of annular toothed plate then drives the feed cylinder and rotates, after the reaction, the feed cylinder stall, CO2 fluid that has mixed the petal is flowed out in the CO2 fluid outlet of filter one and filter two follow sealed lid down through the feed cylinder bottom again.

In order to further enhance the sealing performance between the sealing cover A1552 and the shell of the sealing assembly B, a sealing ring C1552-1 is further arranged on the sealing cover A1552.

Furthermore, for better realization buckle function, the end of the two ends of the upper joint and the lower joint of the charging barrel are hook-shaped.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "disposed," "connected," "secured," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. A flower essential oil supercritical extraction device comprises a working unit and a control box, wherein the working unit is connected with the control box, the working unit comprises a storage tank, a condenser, a pressurizing device, a heating device, an extraction kettle, a raw material tank, a separating device, a recovering device and a compressing device are connected and installed behind the storage tank through a pipeline, pressure gauges are further arranged on each section of the pipeline, an ultrahigh pressure automatic pressure valve is fixedly arranged on the pipeline between the storage tank and the recovering device and between the storage tank and the separating device, an ultrahigh pressure pump is fixedly arranged on the pipeline between the condenser and the pressurizing device, check valves are further arranged between the pressurizing device and the heating device, between the separating device and the recovering device and between the recovering device and the compressing device, the compressing device is fixedly arranged on the pipeline between the storage tank and the liquefying device, and temperature sensors are further arranged on the extraction kettle and the separating device, the pressure of the ultrahigh pressure automatic pressure valve, the ultrahigh pressure pump and the extraction kettle can reach 120 MPA.

2. The flower essential oil supercritical extraction apparatus of claim 1, wherein: the ultrahigh pressure pump comprises a pump body, an auxiliary valve, a signal sensor, a motor and a pressing sleeve nut, wherein the pressing sleeve nut is in threaded connection with the left side of the pump body, the auxiliary valve is fixedly arranged on the right side of the pump body, the signal sensor is respectively arranged on the pump body and the auxiliary valve, the motor is connected with the control box through the signal sensor, an inner core assembly is arranged in the pump body along the axial direction and comprises a pressing sleeve A, a plunger A and an inner cavity, the plunger A penetrates through the pressing sleeve A, the plunger A and the pressing sleeve A are in clearance fit, the left end of the pressing sleeve A is connected with a pipeline, the right end of the pressing sleeve A is in threaded connection with the pump body, a pressing sleeve B, a spacer ring, a filler, a metal pad II and a metal pad I are sequentially and fixedly arranged in the inner cavity from left to right along the axial direction of the plunger A, the auxiliary valve comprises a joint A, a pressing sleeve C, a valve seat A, a valve seat sleeve, a valve ball and a hydraulic cylinder body, the hydraulic cylinder body is in threaded connection with the pump body, the valve seat A is arranged in an inner cavity of the hydraulic cylinder body along the radial direction of the plunger A, the valve seat sleeve is fixedly arranged on the valve seat A, the valve seat A and the valve seat sleeve are arranged in pair, the pressing sleeve C is arranged on the valve seat sleeve and the valve seat A, a valve seat cushion is arranged between the valve seat A and the valve seat sleeve, the valve seat A, the pressing sleeve C and the valve seat sleeve are provided with through holes, the inner diameter of the valve seat sleeve is larger than that of the valve seat A, a valve ball is arranged in the middle of the inner diameter of the valve seat sleeve, the joint is arranged at the top of the pressing sleeve C and is in threaded connection with the hydraulic cylinder body, and a sealing ring B is arranged between the joint and the pressing sleeve C;

the extraction kettle comprises a barrel body, a charging barrel, an upper sealing cover, a lower sealing cover and a sealing component B, wherein a plurality of crushing devices are arranged on the inner wall of the charging barrel from top to bottom, the crushing devices are connected with a control cabinet through sensors, the sealing component B further comprises a shell, a sealing cover A, a plug, a first plunger and a second plunger, the top end of the outer wall of the shell of the sealing component B extends 3/4 of the thickness of the barrel wall of the barrel body extending outwards in the radial direction of the barrel body, the plug is connected with the sealing cover A, the top end of the shell of the sealing component A is clamped with the upper sealing cover, two sides of the shell of the sealing component A are provided with a CO2 fluid inlet, the CO2 fluid inlet has a reverse angle of 150 degrees along the horizontal direction, the wall thickness of the shell of the sealing component A is consistent with the wall thickness of the barrel body, the bottom of the shell of the sealing component A is conical, and the included angle between the bottom of the shell of the sealing component A and the top of the barrel body is 22 degrees, the outer diameter of the sealing cover A is the same as the inner diameter of the sealing assembly A shell, inlets corresponding to a CO2 fluid inlet are arranged on two sides of the plunger, a sealing gasket B is arranged between the plunger I and the sealing cover A, a discharging ring is arranged at the bottom of the outer surface of the plunger I, a filtering layer is arranged at the junction of the plunger I and the plunger II, the filtering layer is buckled with the plunger II through an upper joint of a charging barrel, the plunger I and the plunger II are integrated into a whole, the plunger I and the plunger II are hollow, a plunger sealing ring is arranged on the outer surface of the plunger, the thickness of the barrel wall of the barrel body is 1/4 of the diameter of the barrel body, the bottom of the barrel body is conical, an annular toothed plate is arranged between the charging barrel and the barrel body, the ring is meshed with the outer surface of the charging barrel, the annular toothed plate is connected with a motor, a sensor is arranged on the motor, the sensor is connected with a control cabinet, and the height of the charging barrel body is the same as the height of the barrel body, the filter is characterized in that a first filter plate, a second filter plate and a filter screen compression ring are sequentially arranged on the bottom in the charging barrel from top to bottom, the first filter plate and the second filter plate are connected through a lower charging barrel joint in a buckling mode, the lower charging barrel joint is fixedly arranged on the inner wall of the charging barrel, a sealing ring C is arranged at the position, corresponding to the upper end of the lower end of the charging barrel, of the outer surface of the lower charging barrel joint, the filter screen compression ring is arranged below the second filter plate in a detachable mode, the bottom of the charging barrel is conical, the conical angle is 150 degrees, the lower sealing cover is detachably and fixedly arranged at the bottom of the charging barrel, the included angle between the lower sealing cover and the bottom of the charging barrel is 30 degrees, the top of the lower sealing cover is in the shape of an inverted cone, the angle of the inverted cone is 150 degrees, and the bottom of the inverted cone is a CO2 fluid outlet.

3. The flower essential oil supercritical extraction apparatus of claim 2, wherein: the bottom of the ultrahigh pressure valve body is conical, the conical angle is 90 degrees, a guide sealing block extends from the side edge of the conical shape, the diameter of the guide sealing block is smaller than the inner diameter of the valve seat, and a through hole is formed in the side face of the guide sealing block.

4. The flower essential oil supercritical extraction apparatus of claim 2, wherein: the valve seat is provided with a conical contact surface which is attached to the conical surface at the bottom of the valve rod.

5. The flower essential oil supercritical extraction apparatus according to any one of claims 1-4, wherein: and a sealing ring is arranged on the outer surface of the conical surface at the bottom of the valve body.

6. The flower essential oil supercritical extraction apparatus according to any one of claims 1-4, wherein: the sealing cover A is provided with a sealing ring C.

7. The flower essential oil supercritical extraction apparatus according to any one of claims 1-4, wherein: the ends of the two ends of the upper joint and the lower joint of the charging barrel are hook-shaped.