CN215781551U - Traditional chinese medicine cryoconcentration ware - Google Patents

Abstract

The utility model provides a traditional Chinese medicine low-temperature concentrator, which comprises: mother liquor jar, heat exchanger, knockout drum and liquid storage pot, the mother liquor jar links to each other with the first feed inlet of heat exchanger, and the first discharge gate of heat exchanger links to each other with the knockout drum, and the liquid outlet of knockout drum links to each other with the liquid storage pot. The outside of knockout drum is equipped with steam ejector pump, and steam ejector pump's first feed inlet links to each other with steam pump, and the second feed inlet passes through the circulating pipe and links to each other with the knockout drum, steam ejector pump's gas outlet with the second feed inlet of heat exchanger links to each other. The inside of knockout drum is equipped with cloth liquid subassembly and reposition of redundant personnel subassembly, and cloth liquid subassembly includes connecting pipe and cloth liquid pipe, is equipped with cloth liquid hole on the lateral wall of cloth liquid pipe. Reposition of redundant personnel subassembly sets up under liquid distribution pipe, includes: the bottom surface of the top plate is connected with the top surface of the bottom plate through the connecting rod. The traditional Chinese medicine low-temperature concentrator can reduce the evaporation temperature of liquid medicine and improve the gas-liquid separation efficiency of the liquid medicine.

Description

Traditional chinese medicine cryoconcentration ware

Technical Field

The utility model belongs to the field of traditional Chinese medicine preparation equipment, and particularly relates to a traditional Chinese medicine low-temperature concentrator.

Background

During the processing of the traditional Chinese medicine, the evaporation concentration of the liquid medicine is an indispensable link, and the water content in the liquid medicine can be reduced through the evaporation concentration process, so that the concentration of the solute is improved, and the separation of the solvent and the solute is realized.

In the prior art, a common traditional Chinese medicine low-temperature concentrator generally has the problem of overhigh evaporation temperature, and when the traditional Chinese medicine low-temperature concentrator is heated and evaporated, the overhigh evaporation temperature can cause the generation of heat-sensitive substances in the medicine to be changed, so that the quality of concentrated liquid medicine is influenced. In addition, the traditional Chinese medicine low-temperature concentrator also has the problem of low gas-liquid separation efficiency, and after the liquid medicine is heated, the low gas-liquid separation efficiency can influence the liquid medicine concentration efficiency, so that the processing speed of the traditional Chinese medicine product is reduced.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present invention is directed to a low temperature concentrator for traditional Chinese medicine, so as to solve the above technical problems.

In order to achieve the purpose, the technical scheme of the utility model is realized as follows:

a traditional chinese medicine cryoconcentrator, comprising: the separation device comprises a mother liquid tank, a heat exchanger, a separation tank and a liquid storage tank, wherein the mother liquid tank is connected with a first feed inlet of the heat exchanger, a first discharge outlet of the heat exchanger is connected with the separation tank, and a liquid outlet of the separation tank is connected with the liquid storage tank;

a steam injection pump is arranged outside the separation tank, a first feed inlet of the steam injection pump is connected with the steam pump, and a second feed inlet of the steam injection pump is connected with the separation tank through a circulating pipe; the gas outlet of the steam ejector pump is connected with the second feed inlet of the heat exchanger, and a gas guide pipe is arranged at the second discharge outlet of the heat exchanger; the gas-liquid separator is arranged on the gas guide pipe, and a liquid phase outlet of the gas-liquid separator is communicated with a third feed inlet of the steam jet pump;

the separation tank is internally provided with a liquid distribution assembly and a flow dividing assembly, the liquid distribution assembly comprises a connecting pipe and a liquid distribution pipe, the liquid distribution pipe is communicated with a first discharge port of the heat exchanger through the connecting pipe, and the side wall of the liquid distribution pipe is provided with a liquid distribution hole; the reposition of redundant personnel subassembly sets up under the cloth liquid pipe, includes: the bottom surface of the top plate is connected with the top surface of the bottom plate through the connecting rod, and the diameter of the bottom plate is larger than that of the top plate.

Further, the steam ejector pump comprises a receiving section, a mixing section and an expansion section which are sequentially communicated, wherein the inner diameter of the receiving section is larger than that of the mixing section, and the inner diameter of the expansion section is larger than that of the receiving section; first feed inlet and second feed inlet all communicate with the section of receiving, third feed inlet and gas outlet all communicate with the expansion section.

Further, a heat exchange sleeve is arranged outside the mother liquid tank, and a heat exchange cavity is arranged inside the side wall of the heat exchange sleeve; the gas guide pipe is provided with a gas guide branch pipe, the gas guide branch pipe is positioned between the gas-liquid separator and the heat exchanger, and the gas guide branch pipe is communicated with the heat exchange cavity; an emptying pipe is further arranged on the heat exchange sleeve and communicated with the heat exchange cavity.

Furthermore, the liquid distribution pipe is an annular pipe, and the plane of the annular pipe is parallel to the top plate.

Furthermore, the flow distribution assembly also comprises a plurality of flow distribution plates parallel to the top plate, and the flow distribution plates are uniformly arranged between the top plate and the bottom plate along the height direction of the connecting rod; the diameter of the splitter plate is between the diameter of the top plate and the diameter of the bottom plate, and the diameters of the splitter plates are gradually increased from top to bottom.

Furthermore, the flow distribution plate center is equipped with the flow distribution hole, the internal diameter of flow distribution hole is less than the diameter of roof, and the flow distribution hole internal diameter on a plurality of flow distribution plates from top to bottom dwindles gradually.

Furthermore, the traditional Chinese medicine low-temperature concentrator also comprises an adjusting component, wherein the adjusting component comprises a one-way valve and a flow regulator; the one-way valve is arranged on the circulating pipe and only allows the medium to flow from the separation tank to the steam jet pump; the circulating pipe is provided with an air inlet pipe, the air inlet pipe is positioned between the one-way valve and the steam injection pump, and the flow regulator is arranged on the air inlet pipe.

Furthermore, the flow regulator comprises an outer sleeve and an inner sleeve, one end of the inner sleeve is slidably arranged in the outer sleeve, and the other end of the inner sleeve is provided with a baffle; the side wall of the inner sleeve is provided with a plurality of air inlets which are uniformly arranged along the axial direction of the inner sleeve.

Furthermore, the outer sleeve comprises a connecting section and an accommodating section, the inner diameter of the accommodating section is larger than that of the connecting section, the outer diameter of the inner sleeve is equal to that of the accommodating section, and the inner sleeve is arranged in the accommodating section.

Furthermore, a locking block is arranged on the inner wall of the accommodating section, and a locking groove for accommodating the locking block is formed in the outer wall of the inner sleeve; the locking groove comprises a guide section and a plurality of locking sections, the length direction of the guide section is parallel to the axis direction of the inner sleeve, the locking sections are arranged on the side wall of the guide section, and the locking sections and the exhaust holes are alternately arranged one by one along the axis direction of the inner sleeve.

Furthermore, a spring is arranged inside the containing section, one end of the spring is connected with the end face of the inner sleeve, and the other end of the spring is connected with the end face of the connecting section.

Compared with the prior art, the traditional Chinese medicine low-temperature concentrator has the following advantages:

(1) according to the traditional Chinese medicine low-temperature concentrator, the gas-phase solvent in the separation tank can be injected into the heat exchanger through the steam injection pump, and the gas-phase solvent can be mixed with high-temperature steam generated by the steam pump through the injection process, so that the heating temperature of liquid medicine in the heat exchanger is reduced, and the occurrence of degeneration of heat-sensitive medicines in the evaporation and concentration process is avoided. Secondly, this device can also condense the thermal medium who leaves the heat exchanger to inside leading-in steam ejector pump of comdenstion water after with the condensation. The temperature of the medium in the steam ejector pump can be further reduced by leading in the condensed water, so that the heating temperature of the liquid medicine can be conveniently controlled by a worker. In addition, still be equipped with cloth liquid subassembly and reposition of redundant personnel subassembly inside the separator tank, the cooperation through cloth liquid subassembly and reposition of redundant personnel subassembly enables the even distribution of liquid medicine after the heating inside the separator tank to accelerate the evaporation rate of solvent in the liquid medicine, and then improve the concentrated efficiency of liquid medicine.

(2) The traditional Chinese medicine low-temperature concentrator can guide cold air in the external environment into the steam ejector pump through the regulating assembly, and can limit the flow of the cold air through the flow regulator. When the liquid medicine evaporator works, the staff can adjust the entering amount of cold air according to the actual situation of the liquid medicine to be evaporated, so that the temperature inside the heat exchanger is adapted to the actual demand of the evaporation of the liquid medicine.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the utility model and, together with the description, serve to explain the utility model and not to limit the utility model. In the drawings:

FIG. 1 is a schematic view of a process flow of a cryoconcentration apparatus for traditional Chinese medicine according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view of a separator tank according to an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of a shunt assembly according to an embodiment of the present invention;

FIG. 4 is an exploded view of a flow regulator according to an embodiment of the present invention;

FIG. 5 is a cut-away inside view of a flow regulator according to an embodiment of the present invention;

FIG. 6 is a schematic structural view of an inner casing according to an embodiment of the present invention;

fig. 7 is a sectional internal view of a steam ejector according to an embodiment of the present invention.

Description of reference numerals:

11-mother liquor tank; 12-a circulation pump; 13-a heat exchanger; 14-a separation tank; 15-a liquid storage tank; 16-a steam ejector pump; 161-gas-liquid separator; 162-a receiving segment; 163-a mixing section; 164-an expansion section; 165-a first feed port; 166-a second feed port; 167-third feed inlet; 17-a one-way valve; 18-a flow regulator; 19-a temperature sensor; 2-a circulation pipe; 31-a connecting tube; 32-liquid distribution pipe; 321-liquid distribution holes; 41-top plate; 42-a base plate; 43-connecting rod; 44-a diverter plate; 441-shunting holes; 51-outer sleeve; 511-a locking block; 52-inner cannula; 521-an air inlet hole; 522-a guide section; 523-a locking section; 524-baffle plate; 53-spring.

Detailed Description

It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. 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," "second," etc. 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 otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

A traditional Chinese medicine cryoconcentration device for heating, evaporating and concentrating a traditional Chinese medicine liquid, wherein fig. 1 is a schematic process flow diagram of the traditional Chinese medicine cryoconcentration device in this embodiment, and as shown in the figure, the traditional Chinese medicine cryoconcentration device includes: mother liquor tank 11, heat exchanger 13, separating tank 14 and liquid storage tank 15. Wherein the mother liquor tank 11 is connected with the first feed inlet 165 of the heat exchanger 13, the first discharge outlet of the heat exchanger 13 is connected with the separation tank 14, and the liquid outlet of the separation tank 14 is connected with the liquid storage tank 15.

When the liquid medicine evaporator works, liquid medicine to be evaporated is stored in the mother liquid tank 11, a worker can pump the liquid medicine to the heat exchanger 13 (a plate heat exchanger or a tubular heat exchanger) through the circulating pump 12, and the liquid medicine can be used as a cold medium to perform heat exchange with a hot medium in the heat exchanger 13, so that a solvent reaches a phase change temperature. The heated medical fluid is then introduced into the separation tank 14, and the solvent reaching the phase transition temperature inside the separation tank 14 is converted from the liquid phase to the gas phase, thereby concentrating the medical fluid. The concentrated liquid medicine enters the liquid storage tank 15 for storage so as to carry out subsequent processing procedures.

Correspondingly, if the liquid medicine to be evaporated needs to be evaporated and concentrated for a plurality of times, the concentrator can also be provided with a return pipe on the separation tank 14. In particular, the return line may be in communication with the circulation pump 12 via a three-way valve. When evaporation concentration is required for multiple times, a worker can make the liquid-phase concentrated liquid medicine in the separation tank 14 flow into the circulating pump 12 again, so that the concentrated liquid medicine exchanges heat with the heat exchanger 13 for multiple times, and the concentration degree of the liquid medicine is improved.

In the prior art, the evaporative concentrator for traditional Chinese medicines generally has the problems of overhigh heating temperature and low gas-liquid separation efficiency, the overhigh heating temperature can cause the occurrence of heat-sensitive components in liquid medicine to change, thereby influencing the quality of the liquid medicine, and the low gas-liquid separation efficiency can reduce the concentration speed of the traditional Chinese medicines, thereby prolonging the processing period of products.

In order to control the heating temperature of the liquid medicine conveniently, the steam jet pump 16 is provided outside the separation tank 14 in this embodiment, the first feed port 165 of the steam jet pump 16 is connected to a steam pump (not shown), and the second feed port 166 is connected to the separation tank 14 through the circulation pipe 2. The air outlet of the steam ejector pump 16 is connected with the second feed inlet 166 of the heat exchanger 13, and an air duct is arranged at the second discharge outlet of the heat exchanger 13. The gas-liquid separator 161 is arranged on the gas-guide pipe, and the liquid phase outlet of the gas-liquid separator 161 is communicated with the third feed port 167 of the steam ejector pump 16.

It should be noted that, the steam ejector 16 in this embodiment is a common fluid ejector, and when the steam ejector is in operation, the hot steam entering along the first feeding hole 165 will flow at a high speed in the steam ejector 16, and at this time, a negative pressure region will be formed around the region through which the hot steam flows, and the second feeding hole 166 communicating with the circulation pipe 2 will suck the gas-phase substance in the separation tank 14 into the steam ejector 16 under the action of the negative pressure. Accordingly, the third inlet 167, which is connected to the liquid phase outlet of the gas-liquid separator 161, will suck the liquid phase portion generated by the gas-liquid separator 161 (i.e. the condensed water formed by the steam discharged from the heat exchanger 13) into the steam ejector 16 under the action of the negative pressure. Subsequently, the hot steam will be mixed with the gas phase substance and the condensed water, and finally enter the heat exchanger 13 along the air outlet, becoming the heat medium inside the heat exchanger 13.

Specifically, as shown in fig. 7, in the present embodiment, the steam ejector 16 includes a receiving section 162, a mixing section 163, and an expanding section 164, which are sequentially communicated, wherein an inner diameter of the receiving section 162 is larger than an inner diameter of the mixing section 163, an inner diameter of the expanding section 164 is larger than an inner diameter of the receiving section 162, the first feeding port 165 and the second feeding port 166 are both communicated with the receiving section 162, and the third feeding port 167 and the air outlet are both communicated with the expanding section 164. After the hot vapor and the gaseous solvent enter the mixing section 163 along the receiving section 162, the mixture of the hot vapor and the gaseous solvent will be thoroughly mixed inside the mixing section 163 because the inner diameter of the mixing section 163 is smaller than the inner diameter of the receiving section 162. After the mixture enters the expanding section 164, the change of the inner diameter may cause a stronger negative pressure to be formed inside the expanding section 164, so as to facilitate the third feeding port 167 to suck the condensed water guided out by the gas-liquid separator 161.

Since both the temperature of the vapor phase solvent and the condensed water are lower than the temperature of the hot steam, the mixing of the vapor phase solvent, the condensed water and the hot steam can lower the temperature of the heat medium inside the heat exchanger 13. The staff can adjust the mixing ratio of gaseous phase solvent, condensate water and hot steam according to actual need to adjust the temperature of thermal medium, so that the thermal medium evaporates the heating for lower temperature to the liquid medicine, thereby avoids the heat-sensitive composition in the liquid medicine to change.

Optionally, for the temperature that makes things convenient for the staff to adjust the hot medium for this device is applicable to the concentrated work of different liquid medicines, this embodiment traditional chinese medicine cryoconcentration ware still can include adjusting part, inside enabling external cold air to get into steam ejector pump 16 through adjusting part, the staff can adjust the flow of cold air according to actual demand, and then makes the hot medium have different temperatures.

In particular, the regulating assembly comprises a one-way valve 17 and a flow regulator 18, wherein the one-way valve 17 should be arranged on the circulation pipe 2 and the one-way valve 17 only allows medium to flow from the separation tank 14 to the steam ejector pump 16. An air inlet pipe is arranged on the circulating pipe 2, the air inlet pipe is positioned between the one-way valve 17 and the steam injection pump 16, and the flow regulator 18 is arranged on the air inlet pipe. When the device works, the one-way valve 17 can prevent outside cold air from entering the separation tank 14, and the flow regulator 18 can adjust the flow of the cold air entering the circulating pipe 2, so that the device is convenient for workers to operate.

Fig. 4 and 5 are schematic views of the flow regulator 18 of this embodiment, and the flow regulator 18 is shown to include an outer sleeve 51 and an inner sleeve 52. One end of the inner sleeve 52 is slidably arranged in the outer sleeve 51, and the other end is provided with a baffle 524. A plurality of air inlet holes 521 are formed in the side wall of the inner sleeve 52, and the plurality of air inlet holes 521 are uniformly arranged along the axial direction of the inner sleeve 52. When the air inlet pipe is used, a worker can adjust the depth of the inner sleeve 52 inserted into the outer sleeve 51 according to actual needs, so that different numbers of air inlet holes 521 are exposed out of the outer sleeve 51. After negative pressure is formed inside the steam ejector pump 16, the external cold air and the gas-phase solvent inside the separation tank 14 flow into the steam ejector pump 16 under the action of the negative pressure, and the purpose of adjusting the temperature of the heat medium is further achieved.

In order to connect the outer sleeve 51 and the inner sleeve 52, the outer sleeve 51 comprises a connecting section and a receiving section, wherein the inner diameter of the receiving section is larger than the inner diameter of the connecting section, the outer diameter of the inner sleeve 52 is equal to the inner diameter of the receiving section, and the inner sleeve 52 is arranged inside the receiving section. When the temperature required by the evaporation of the liquid medicine is higher, the worker can insert the inner sleeve 52 into the outer sleeve 51, and the inner wall of the accommodating section can plug the air inlet 521 on the inner sleeve 52, so that the outside cold air is prevented from entering the steam ejector pump 16.

Optionally, in order to facilitate the fixing of the position of the inner sleeve 52 by the worker, the inner wall of the accommodating section should be provided with a locking block 511, and correspondingly, the outer wall of the inner sleeve 52 is provided with a locking groove for accommodating the locking block 511. As shown in fig. 6, the locking groove includes a guide section 522 and a plurality of locking sections 523, the length direction of the guide section 522 is parallel to the axial direction of the inner sleeve 52, the locking sections 523 are disposed on the side walls of the guide section, and the plurality of locking sections 523 and the plurality of exhaust holes are alternately arranged one by one along the axial direction of the inner sleeve 52.

When the number of the air inlet holes 521 exposed out of the outer sleeve 51 meets the requirement, a worker can drive the inner sleeve 52 to rotate, so that the locking block 511 enters the locking section 523. The locking section 523 and the locking block 511 are matched to axially limit the inner sleeve 52, so that the inner sleeve 52 is prevented from sliding abnormally during operation.

In addition, in order to further improve the convenience of the operation of the worker, a spring 53 is provided inside the accommodating section, and as shown in fig. 5, one end of the spring 53 is connected to the end surface of the inner sleeve 52, and the other end is connected to the end surface of the connecting section. When the inner sleeve 52 is inserted into the outer sleeve 51, the spring 53 will be compressed, and the spring force generated by the compression of the spring 53 will drive the outer sleeve 52 to move outwards. If the locking piece 511 enters the inside of the locking section 523, the drive of the outward movement of the inner sleeve 52 is blocked, so that the inner sleeve 52 cannot move. If the locking block 511 is disposed within the guide section 522, the inner sleeve 52 will move outwardly, thereby increasing the efficiency with which the operator can adjust the inner sleeve 52.

As an optional implementation manner of this embodiment, in order to facilitate the monitoring of the temperature of the heat medium entering the heat exchanger 13 by the staff, a temperature sensor 19 may be disposed at the air outlet of the steam ejector pump 16. When the device works, the temperature sensor 19 can detect the temperature of the medium leaving the steam ejector pump 16, and a worker can adjust the position of the inner sleeve 52 according to the detection result, so that the temperature of the heat medium entering the heat exchanger 13 is adjusted, and the actual temperature of the heat medium is matched with the temperature required by the evaporation and concentration of the medicine.

In order to improve the gas-liquid separation efficiency in the liquid medicine concentration process, the separation tank 14 described in this embodiment is internally provided with a liquid distribution assembly and a flow distribution assembly. As shown in fig. 2, the liquid distribution assembly includes a connection pipe 31 and a liquid distribution pipe 32, the liquid distribution pipe 32 is communicated with the first discharge port of the heat exchanger 13 through the connection pipe 31, and a liquid distribution hole 321 is formed on a side wall of the liquid distribution pipe 32. During operation, the heated liquid medicine enters the liquid distribution assembly after leaving the heat exchanger 13, and is uniformly sprayed into the separation tank 14 through the liquid distribution assembly. Compare with traditional liquid medicine injection mode, the volatile area of liquid medicine can be increased to the spraying process of cloth liquid subassembly, and the solvent that reaches phase transition temperature this moment will be fast with concentrated liquid medicine separation, consequently can improve the gas-liquid separation efficiency of this device.

Optionally, in this embodiment, the liquid distribution pipe 32 should be configured as an annular pipe, and the plane of the annular pipe is parallel to the top plate 41, and correspondingly, the liquid distribution hole 321 should be configured on the bottom side wall of the annular pipe. Since the cross section of the conventional separation tank 14 is circular, the adoption of the annular pipe as the liquid distribution pipe 32 can improve the geometric matching degree of the liquid distribution assembly and the separation tank 14. Meanwhile, the annular tube enables the worker to set more liquid distribution holes 321 on the liquid distribution tube 32, thereby improving the efficiency and uniformity of liquid medicine spraying.

In addition, in order to further accelerate the volatilization speed of the solvent, the flow dividing component is arranged right below the liquid distribution pipe 32. Specifically, the reposition of redundant personnel subassembly includes: a top plate 41, a bottom plate 42 and a connecting rod 43, wherein the bottom surface of the top plate 41 is connected with the top surface of the bottom plate 42 through the connecting rod 43, and the diameter of the bottom plate 42 is larger than that of the top plate 41. When the liquid medicine sprays downwards along the liquid distribution holes 321, the flow dividing assembly receives the falling liquid medicine, and the liquid medicine flows uniformly on the top surface of the top plate 41 and flows onto the bottom plate 42 along the edge of the top plate 41. The medical fluid then again flows over the bottom plate 42 and eventually along the edges of the bottom plate 42 to the bottom of the separation tank 14.

The volatilization area of the liquid medicine can be further increased and the volatilization speed of the solvent can be accelerated in the process of the liquid medicine flowing on the top plate 41 and the bottom plate 42. The flow of the chemical between the top plate 41 and the bottom plate 42 can reduce the speed at which the chemical falls to the bottom of the separation tank 14, thereby gaining more time for the volatilization of the solvent.

Optionally, in order to improve the liquid medicine diversion effect of the diversion assembly, the diversion assembly may further include a plurality of diversion plates 44, as shown in fig. 3, the diversion plates 44 are parallel to the top plate 41, and the plurality of diversion plates 44 are uniformly arranged between the top plate 41 and the bottom plate 42 along the height direction of the connecting rod 43. In order to facilitate the flowing of the liquid medicine, the diameter of the dividing plate 44 should be between the diameter of the top plate 41 and the diameter of the bottom plate 42, and the diameters of the dividing plates 44 are gradually increased from top to bottom. During operation, since the plurality of flow dividing plates 44 are disposed between the top plate 41 and the bottom plate 42, the chemical liquid leaving the top plate 41 flows through the plurality of flow dividing plates 44 in a stepwise manner from top to bottom. Through the process, more time can be strived for the volatilization of the solvent, so that the gas-liquid separation effect of the heated liquid medicine is further improved.

Correspondingly, in order to facilitate the liquid medicine to flow between the plurality of flow dividing plates 44, the flow dividing holes 441 may be disposed in the center of the flow dividing plates 44, the inner diameter of the flow dividing holes 441 is smaller than the diameter of the top plate 41, and the inner diameters of the flow dividing holes 441 on the plurality of flow dividing plates 44 are gradually reduced from top to bottom. When the liquid medicine flows between the plurality of flow dividing plates 44, the flow dividing holes 441 can increase the flow speed of the liquid medicine between two adjacent flow dividing plates 44, thereby preventing the liquid medicine from staying in the flow dividing assembly for an excessively long time.

In addition, as an optional implementation manner of this embodiment, in order to conveniently utilize the residual heat inside the device, a heat exchange sleeve (not shown in the figure) may be disposed outside the mother liquid tank 11, and a heat exchange cavity is disposed inside a side wall of the heat exchange sleeve. Correspondingly, an air guide branch pipe can be arranged on the air guide pipe, the air guide branch pipe is positioned between the gas-liquid separator 161 and the heat exchanger 13, and the air guide branch pipe is communicated with the heat exchange cavity. In addition, an emptying pipe is arranged on the heat exchange sleeve and communicated with the heat exchange cavity. Because the heat medium still carries residual heat after finishing the heat exchange with the liquid medicine, the device guides the heat medium leaving the heat exchanger 13 into the heat exchange cavity through the air guide branch pipe. At this time, the heat medium with the residual heat preheats the liquid medicine in the mother liquor tank 11, so that the time for the solvent to reach the phase transition temperature can be reduced, and the working efficiency of liquid medicine concentration is improved.

The following explains the effects of the above-described scheme:

the embodiment provides a traditional Chinese medicine low-temperature concentrator, which can mix hot steam, gas-phase solvent, condensed water and external cold air through a steam ejector pump, so that the evaporation temperature of liquid medicine in a heat exchanger can be reduced, and the occurrence of heat-sensitive substances is avoided. Secondly, this device can adjust the entering flow of cold air to make the temperature of the inside heat medium of heat exchanger and the required temperature phase-match of medicine evaporative concentration. In addition, this device can also make the solvent that reaches phase transition temperature volatilize fast through the cooperation of cloth liquid subassembly and reposition of redundant personnel subassembly, consequently can improve the inside gas-liquid separation speed of knockout drum.

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 utility model, 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 (10)

1. A traditional chinese medicine cryoconcentrator, comprising: mother liquor jar (11), heat exchanger (13), knockout drum (14) and liquid storage pot (15), mother liquor jar (11) links to each other with first feed inlet (165) of heat exchanger (13), and the first discharge gate of heat exchanger (13) links to each other with knockout drum (14), just the liquid outlet of knockout drum (14) links to each other with liquid storage pot (15), its characterized in that:

a steam jet pump (16) is arranged outside the separation tank (14), a first feed inlet (165) of the steam jet pump (16) is connected with the steam pump, and a second feed inlet (166) is connected with the separation tank (14) through a circulating pipe (2); an air outlet of the steam ejector pump (16) is connected with a second feed inlet (166) of the heat exchanger (13), and an air guide pipe is arranged at a second discharge outlet of the heat exchanger (13); the gas-liquid separator (161) is arranged on the gas-guide pipe, and a liquid phase outlet of the gas-liquid separator (161) is communicated with a third feed inlet (167) of the steam jet pump (16);

a liquid distribution assembly and a flow dividing assembly are arranged inside the separation tank (14), the liquid distribution assembly comprises a connecting pipe (31) and a liquid distribution pipe (32), the liquid distribution pipe (32) is communicated with a first discharge hole of the heat exchanger (13) through the connecting pipe (31), and liquid distribution holes (321) are formed in the side wall of the liquid distribution pipe (32); the reposition of redundant personnel subassembly sets up under cloth liquid pipe (32), includes: the bottom surface of the top plate (41) is connected with the top surface of the bottom plate (42) through the connecting rod (43), and the diameter of the bottom plate (42) is larger than that of the top plate (41).

2. The traditional Chinese medicine cryoconcentrator according to claim 1, wherein: a heat exchange sleeve is arranged outside the mother liquid tank (11), and a heat exchange cavity is arranged inside the side wall of the heat exchange sleeve; an air guide branch pipe is arranged on the air guide pipe, the air guide branch pipe is positioned between the gas-liquid separator (161) and the heat exchanger (13), and the air guide branch pipe is communicated with the heat exchange cavity; an emptying pipe is further arranged on the heat exchange sleeve and communicated with the heat exchange cavity.

3. The traditional Chinese medicine cryoconcentrator according to claim 1, wherein: the steam ejector pump (16) comprises a receiving section (162), a mixing section (163) and an expansion section (164) which are communicated in sequence, wherein the inner diameter of the receiving section (162) is larger than that of the mixing section (163), and the inner diameter of the expansion section (164) is larger than that of the receiving section (162); first feed inlet (165) and second feed inlet (166) all communicate with the section of receiving, third feed inlet (167) and gas outlet all communicate with the section of expanding.

4. The traditional Chinese medicine cryoconcentrator according to claim 1, wherein: the flow distribution assembly further comprises a plurality of flow distribution plates (44) parallel to the top plate (41), and the flow distribution plates (44) are uniformly arranged between the top plate (41) and the bottom plate (42) along the height direction of the connecting rod (43); the diameter of the flow distribution plate (44) is between the diameter of the top plate (41) and the diameter of the bottom plate (42), and the diameters of the flow distribution plates (44) are gradually increased from top to bottom.

5. The traditional Chinese medicine cryoconcentrator according to claim 4, wherein: the center of the flow distribution plate (44) is provided with flow distribution holes (441), the inner diameter of each flow distribution hole (441) is smaller than the diameter of the top plate (41), and the inner diameters of the flow distribution holes (441) on the flow distribution plates (44) are gradually reduced from top to bottom.

6. The traditional Chinese medicine cryoconcentrator according to claim 1, wherein: the traditional Chinese medicine low-temperature concentrator also comprises a regulating component, wherein the regulating component comprises a one-way valve (17) and a flow regulator (18); the one-way valve (17) is arranged on the circulating pipe (2), and the one-way valve (17) only allows the medium to flow from the separating tank (14) to the steam ejector pump (16); an air inlet pipe is arranged on the circulating pipe (2), the air inlet pipe is positioned between the one-way valve (17) and the steam jet pump (16), and the flow regulator (18) is arranged on the air inlet pipe.

7. The traditional Chinese medicine cryoconcentrator according to claim 6, wherein: the flow regulator (18) comprises an outer sleeve (51) and an inner sleeve (52), one end of the inner sleeve (52) is arranged inside the outer sleeve (51) in a sliding mode, and a baffle (524) is arranged at the other end of the inner sleeve; a plurality of air inlet holes (521) are formed in the side wall of the inner sleeve (52), and the air inlet holes (521) are uniformly arranged along the axial direction of the inner sleeve (52).

8. The traditional Chinese medicine cryoconcentrator according to claim 7, wherein: the outer sleeve (51) comprises a connecting section and an accommodating section, the inner diameter of the accommodating section is larger than that of the connecting section, the outer diameter of the inner sleeve (52) is equal to that of the accommodating section, and the inner sleeve (52) is arranged inside the accommodating section.

9. The traditional Chinese medicine cryoconcentrator according to claim 8, wherein: a locking block (511) is arranged on the inner wall of the accommodating section, and a locking groove for accommodating the locking block (511) is formed in the outer wall of the inner sleeve (52); the locking groove comprises a guide section (522) and a plurality of locking sections (523), the length direction of the guide section (522) is parallel to the axial direction of the inner sleeve (52), the locking sections (523) are arranged on the side wall of the guide section (522), and the locking sections (523) and the exhaust holes are alternately arranged one by one along the axial direction of the inner sleeve (52).

10. The traditional Chinese medicine cryoconcentrator according to claim 9, wherein: a spring (53) is arranged in the accommodating section, one end of the spring (53) is connected with the end face of the inner sleeve (52), and the other end of the spring is connected with the end face of the connecting section.

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