KR101024218B1 - Decoction abstractor which has a plate type heat exchanger for faster condensing - Google Patents

Abstract

PURPOSE: A medicinal herb extracting machine is provided to increase medicinal liquid distillation speed by increasing the firepower of a heating pot depending on the kind of medicinal herbs. CONSTITUTION: A medicinal herb extracting machine comprises a plate-shaped heat exchanger(12). The plate-shaped heat exchanger is installed between a medicinal steam outlet pipe(11) and a medicinal distillate inlet pipe(15). Unit flat tubes(13) are horizontally piled up on the heat exchanger. The medicinal steam outlet pipe is connected to the top of the piled structure of the unit flat tubes, and the distillate inlet pipe is connected to the bottom of the piled structure.

Description

Chemical extractor equipped with distillate liquefaction structure using plate heat exchanger {Decoction abstractor which has a plate type heat exchanger for faster condensing}

The present invention is to improve the liquefaction efficiency of hot and slow medicinal water vapor, plate-shaped primary heat exchanger to reduce the pipe resistance and increase the heat exchange surface area, and refrigerant compression evaporation as a secondary heat exchanger to cool the cooling water used for the primary heat exchange It relates to a distillation medicine extractor further comprising a type freezer.

High-speed, large-scale extraction of various foods made by Chinese medicine or decoction by using a number of mechanized extractors is currently widely practiced in many oriental hospitals and health food manufacturers.

The basic operating concept of the mechanized medicine extractor is to boil water and medicine in an optional closed cooking pot to control the discharge of the heating steam, cool down a large amount of steam generated at this time, and re-liquefy it, and then re-inject most of it into the cooking pot. will be. In this process, the hot pot's decoction is repeatedly cycled in a closed loop, which reduces the water and heating energy required for a long time, and the primary distillate, which is re-injected into the hot pot after liquefaction, contains ionized medicinal ingredients. It is used as a distillation type chemical solution by extracting it separately.

In order to boil water and obtain pure pure water, it is necessary to repeat distillation more than 3 times at low pressure with minimum saturated steam pressure. Such pure water has no ionized electrolyte, and when absorbed into the human body, causes excessive osmosis of the cell membrane, which is harmful to the body. However, the primary distillate distilled only once under atmospheric pressure or above atmospheric pressure contains a large number of ionized components, and the solids are completely removed, so they contain electrolytes, even though they are thinner, and also in the solid state. Since heavy metals, etc., remaining in the clean are removed and have a high probability of containing only beneficial substances to the body, it has recently been attracting attention as a new intake type liquid without side effects.

The key to the technology of mass production of the above-mentioned medicinal herbs or medicinal distillates with a small amount of energy in a short time is to liquefy the heated medicinal vapors rapidly into medicinal distillates. Faster liquefaction speeds up the cycle of water circulation in the cooker and increases the production of medicinal distillates per unit time, which is the key to the overall performance of the extractor.

Chinese herbal extractor using a distillation cycle of water, air-cooled mixed.

Utility Model Publication No. 1994-0004400 Herbal Medicine Extractor.

The prior art documents introduced are representative distillation herbal extractors. First of all, Utility Model Publication No. 1994-0004400 is used as a tool to cool down the heated water vapor, which uses stagnant cooling water contained in a fixed capacity container. Although the vapor liquefaction vessel surrounding the coolant is optimally formed in the shape of a funnel to enable easy condensation liquid collection after liquefaction, the stagnant small volume of coolant disposed inside the funnel becomes hot immediately, so that the liquefaction performance after a certain time has elapsed. Decreases rapidly.

Let us look at Patent Publication No. 10-0360677 as a more advanced prior art. Compared to the previous technology, the cooling water capacity is increased and arranged in a circulating manner from the cooling water tank, and the cooling water heat-exchanged with the chemical vapor is cooled by air cooling using the surrounding indoor air. However, the indoor air around the hot cooker itself is quite hot, and furthermore, cooling cold water with high specific heat with low specific heat is a thermodynamically lengthy process that is short during the return to the tank after heat exchange. Air cooling does not substantially lower the cooling water temperature.

Despite the technical limitations of the limited air-cooled cooling system as described above, the strong reason for adopting it in the prior art is that the amount of cooling water heat exchanged per unit time in the chemical liquid condenser that condenses the chemical vapor is small. The chemical liquid condenser of the prior patent document uses a plurality of gravel, such as germanium stone as an auxiliary heat exchange means to increase the contact surface area with the cooling water, even considering this, the total heat exchange surface area determined by the outer peripheral surface of the cylindrical container is very small. Therefore, even if a large amount of cooling energy is supplied to supply the coolant, the thermal contact area per unit time between the coolant and the chemical vapor is extremely limited. As a result, only the total energy efficiency is lowered. Becomes

Therefore, in terms of energy efficiency, recooling the cooling water is considered to be less efficient. In order to prevent the coolant temperature from excessively rising, only a small amount of air cooling is used during the rapid circulation of the cooling water at a higher temperature. .

However, this type of cooling water has a very high average operating temperature, which causes an extreme increase in indoor air in places where many extractors are densely installed in a factory type.

In order to solve the above problems, it is best to lower the operating temperature of the coolant and use the coolant having a lower temperature (added power) as described above without waste.

To this end, it is essential to reduce the circulation time of the chemical vapor, that is, the production time of the chemical distillate (reducing the heating pot power), which is the total heat exchange area of the heat exchange pipe between the chemical vapor and the cold cooling water in the chemical condenser. This results in an increase.

However, common heat exchange methods such as lengthening the total length of overlapping heat exchanger tubes as a general means of increasing the total heat exchange area, or arranging a small diameter steam capillary tube directly in bulk within the cooling water tank, have adopted simple cylindrical heat exchangers. As the prior patent noted, it is almost impossible to apply to the field of extractors. Because the vapor evaporated in the hot pot is a liquid-gas mixed two-phase material, with a slight incidence of tuberculosis, it is likely that some of it immediately turns into liquid (droplets). Therefore, small diameter or long length pipelines are a direct cause of the blockage.

In addition, due to the nature of the medicinal herb production method, which must be heated on low heat for a long time, the water vapor pressure must be kept low. Therefore, it is difficult for the medicinal water vapor to overcome all high pipeline resistances and pass through long pipelines. Only increase the pressure can not expect substantial improvement in liquefaction performance.

In addition, the cooling water circulation pipe adjacent to the heating pot as an additional cooler installation means is exposed to high heat in itself, so the cooling efficiency is very low. Therefore, except for a cooling water tank that is difficult to cool without structurally using a separate refrigerant, the method of cooling the cooling water on the heat exchange circulation conduit has no strong alternative except the air cooling method using room temperature air.

The present invention was devised to comprehensively and effectively improve the problems of the above-mentioned medicine extraction process, that is, the liquefaction rate and liquefaction efficiency of distillate.

First, in order to more effectively cool and liquefy medicinal water vapor, which is a gas / liquid two-phase material, a plate heat exchanger was introduced as a primary heat exchanger structure that ensures a large heat exchange area with low pipe resistance.

The plate heat exchanger refers to a commercially available heat exchange element that stacks a plurality of multi-layered flat tubes and heats dissimilar fluids flowing in adjacent flat three-dimensional shapes to each other, or applies a radiator by arranging flat tubes slightly spaced apart. In general, a plurality of inner fins are arranged in the inner plate to increase the heat exchange area, and have a disadvantage in that the volume is small and expensive, instead of being strong against thermal expansion or freezing.

In particular, the present invention pays attention to the low pipe resistance of the plate heat exchanger of the deformed structure in which the internal fins are removed from the plate heat exchanger.

In general, the plate heat exchanger is operated by a fluid feeding method, so that the heat exchanger plates are stacked vertically in a structure irrespective of the height of the inlet and outlet. However, in the present invention, the medicine distillate is pumped back from the high pressure to the low pressure. Since the heat exchanger plates were laminated horizontally, especially in the flat tube through which the chemical vapor and the chemical distillate passed, the outlet was always lower than the inlet. In this case, a small amount of distillate can easily flow into the lower layer flat tube while the chemical vapor in the mixed state of gas and liquid passes with minimum resistance inside the flat plate tube without internal fins. Therefore, even in the case of unexpected tuberculosis, pipeline resistance does not increase rapidly, and smooth extraction flow can be derived in a mixture of medicinal vapor and medicinal distillate.

Next, a cooling water cooling structure is introduced, in which the evaporator coil is directly inserted into the cooling water tank, and the cooling water is cooled by a conventional refrigerant compression type refrigerator.

In general, the reason why the cooling water is cooled on the circulation pipe instead of the tank is to efficiently cool the fuel in a location satisfying a small volume and a large surface area. Note that the environment with a height equal to or greater than is very hot, and cooling in this section is very inefficient.

Therefore, the coolant tank is redesigned to arrange the refrigerant evaporation coil directly in the tank, and the compressor and the refrigerant condenser are installed at the lower side of the heater and the heat insulation wall is installed between the heater and the refrigerant condenser. Was maintained above a certain level.

Finally, the pump, the compressor, and the cooling fan are intelligently supplied so that the rotational power of the pump for circulating the cooling water, the compressor for circulating the refrigerant, and the condenser cooling fan for cooling the refrigerant condenser can be supplied from a single motor. And electronic clutches between these parts and the motor.

In particular, since the cooling water circulation pump should always be operated first and foremost, the motor and the cooling water circulation pump are arranged in a direct manner, and the intermittent compressor and cooling fan are arranged in a power connection structure by clutch and belt joints.

The medicine extractor according to the present invention exhibits high performance which is differentiated from the conventional extractor due to its high heat exchange efficiency while having a very low pipe resistance of the liquefied pipe.

In addition, chemical vapor can be distilled even with low-pressure chemical vapor, and the chemical vapor distillation rate can be made faster by increasing the heating power of the heating pot according to the contents of the dish. Therefore, there is an advantage in that it is possible to manufacture a chemical liquid that cannot be manufactured with a conventional extractor that cannot operate under a certain water vapor pressure, and has the effect of extracting the same amount of medicine in the shortest time that is difficult to compare with the extracting time of a conventional extractor.

In addition, the present invention can significantly reduce the size of the cooling water tank, which occupies the most volume and weight, compared to the conventional extractor, so that despite the added refrigeration mechanism, the overall size of the equipment does not increase, and a plurality of equipment is arranged in a compact manner. Even though it is not influenced by the room temperature of equipment operation space, it shows excellent extracting ability that satisfies the required quality and the specified delivery time even in the mass production environment in summer when demand for supplement products is concentrated.

1 is a front appearance perspective view of the present invention medicine extractor.
Figure 2 is a perspective view of the rear of the present invention medicine extractor.
Figure 3 is a front view of the present invention medicine extractor.
Figure 4 is a right side view of the present invention medicine extractor.
5 is a plan view of the present invention medicine extractor.
Figure 6 is an exploded perspective view of the main part of the present invention medicine extractor.
Figure 7 is an enlarged perspective view of the medicinal water vapor liquefied conduit of the present invention medicine extractor.
8 is an enlarged perspective view of a cooling water circulation pipe part of the present invention medicine extractor.
9 is an enlarged perspective view of a refrigerant circulation conduit of the present invention medicine extractor.
10 is a conceptual diagram illustrating the heat exchange and liquefaction in the plate heat exchanger of the present invention medicine extractor.
Figure 11 is a front side perspective view showing the internal structure of the main part of the present invention medicine extractor.
Figure 12 is a side perspective view showing the internal structure of the main part of the present invention medicine extractor.

With reference to the embodiment of the present invention included in the drawings in order to technically support the above-described solution of the present invention will be described in detail.

However, in the following specific embodiments, components including specific terminology and combinations thereof do not limit the technical spirit inherent in the present invention.

1 to 6 show the overall appearance of the herbal extractor designed in one embodiment of the present invention.

The overall arrangement is similar to a conventional medicine extractor, the heaviest cooling water tank 20 is disposed at the bottom, the heating cooker 10 is placed thereon, the chemical vapor is discharged above the heating cooker through the outflow pipe 11 Flows into the plate heat exchanger (12).

In the plate heat exchanger 12, the chemical vapor is heat-exchanged with the cooling water, cooled to liquefy into a chemical distillate, discharged by collecting the chemical distillate intermediate storage 14, or is re-introduced into the heating cooker (10).

The cooling water tank 20 is disposed below the heating pot, and the cooling water is introduced into the plate heat exchanger 12 through the cooling water outlet pipe 23 by the cooling water pump 21, heat exchanged with the chemical vapor, and heated and heated. It is reintroduced into the coolant tank through the inlet pipe 22.

The cooling water of the cooling water tank is cooled again by the refrigerant evaporator 30 which takes away the surrounding cooling water heat by the latent heat of evaporation of the refrigerant in the tank. The temperature of the cooling water is maintained at 15 ° C. or lower to maintain a large gap with the temperature of the chemical vapor 100 to 110 ° C. This difference in temperature is the driving force for excellent liquefaction performance, low noise performance due to significantly less cooling water circulation, and the like, compared to conventional extractors operated in air cooling, especially during the hot summer months.

The chemical vapor liquefaction system shown in FIG. 7, 10, especially the plate heat exchanger 12 is further demonstrated.

The plate heat exchanger 12, the unit plate tube 13 is a horizontal stacked structure and the chemical vapor outlet pipe 11 is connected from the top of the horizontal stacked structure, the chemical distillate inlet pipe 15 is It is connected from the bottom of the horizontally stacked structure. Referring to the illustrated cross-sectional view, there is a unit flat tube 13 filled with cooling water on top, and the chemical vapor is introduced into the unit flat tube 13 stacked therethrough. Afterwards, the coolant flat tube and the medicinal vapor flat tube are arranged alternately, and the medicinal vapor flat tube, which is gradually cooled downward, contains more medicinal distillate.

As mentioned above, gas / liquid two-phase fluids mixed with medicinal water vapor and medicinal distillate are difficult to flow from the low inlet to the high outlet, and because of the low pressure delivery, it is difficult to flow well if the cooling fins are arranged in the inner pipeline. . Therefore, among the flat plate tubes 13, the flat tube tube through which the medicinal vapor or the medicinal distillate penetrates is different from the general structure of the plate heat exchange element so that a smooth distillate flow occurs regardless of the irregular formation of condensate. Alternatively, the inlet is at the top and the outlet is at the bottom with the inner space of the smooth surface free of cooling fins lying horizontally.

The cooling water circulation structure shown in FIG. 8 will be described in more detail.

The cooling water circulation structure is a structure in which a plate heat exchanger 12 is pumped through a conventional pump 21 through an outlet pipe 23 of a cooling water tank 20 located below a heating cooker, and heat exchanged with chemical vapor in a plate heat exchanger. The coolant is dropped into the coolant tank 20 again. The temperature of the effluent coolant (the set temperature of the coolant tank) can be set to about 15 ° C in consideration of the performance and liquefaction efficiency of the freezer described below, and the temperature of the coolant returned when the target temperature of the chemical distillate is 25 ° C. It is set to about 20 to 22 ° C. This is close to the range of about 6 ℃, which is a typical home refrigerator on-off temperature range, and in the following refrigerators, it is possible to apply a refrigerator having a performance similar to that of the home refrigerator. The coolant pump 21 is directly connected to the drive motor 40 without a separate clutch for energy efficiency as the place where the operation stop time is the least.

The refrigeration cycle of the refrigerant evaporative refrigerator shown in FIG. 9 will be further described.

The freezer used is a medium used as a common eco-friendly refrigerant used in refrigerators or air conditioners for general industrial or home use, and is also operated by a conventional compression-condensation-evaporation cooling cycle. The biggest feature of the installation structure is that the refrigerant evaporator 30 is directly inserted into the cooling water tank 20.

Before explaining the specific heat conditions required for the refrigerant, it is necessary that the heat of evaporation is large, the specific heat of the liquid is small, and the ratio of the specific heat of liquid to the heat of evaporation must be small. From this point of view, the high specific heat medium in the coolant tank is the coolant and the low specific heat medium is the refrigerant (typically 25% to 50% of the water in the domestic refrigerant). In other words, the efficiency is best because the high specific heat medium completely surrounds the low specific heat medium. On the contrary, in the conventional extractor, the cooling water cooling structure has the lowest efficiency since the air having the low specific heat medium completely surrounds the cooling water having the high specific heat medium. This design point is also a problem to consider in the liquefaction mechanism of the conventional extractor that cools the inside of the space filled with cooling water by passing the chemical vapor through a coiled pipeline to make the distillate, and the conventional extractor completely surrounds the low specific heat medium. Although the low specific heat of liquefied water vapor is sufficiently deprived of heat, the cooling water, which is a relatively high heat medium, is not sufficiently deprived of heat. This is the reason why the volume of the container containing the coolant was not increased in the preceding utility model document, and it is an example showing the technical limitation of the liquefaction performance of the preceding extractor. As a result, the method of applying all the heat exchange structures that increase the heat exchange surface area such as a coil type heat exchanger in a space filled with a specific medium should be carried out only for cooling the cooling water tank as in the present invention. Becomes

On the contrary, applying such a conventional heat exchange structure (prior art) in an environment in which the properties of the heat exchange medium are completely reversed, such as water vapor liquefaction, is a disadvantage, and in this case, the plate heat exchanger of the present invention considering the pipe resistance is an optimal alternative.

In order to more excellently complete the excellent performance of the present invention medicine extractor as described above, some additional optimal design elements were added. For example, as shown throughout the drawings, a heat insulating wall 43 is further formed between the refrigerant condenser 33 and the heating cooker 10 condensing the refrigerant evaporated in the refrigerant evaporator 30, and the cooling water At least two of the cooling water pump 21 for circulating the refrigerant, the refrigerant compressor 32 for circulating the refrigerant, and the condenser cooling fan 42 for cooling the refrigerant condenser 33 are driven by an electronic clutch 41. It is an optimal design element, such as selectively powered from the motor 40. In particular, the medicine extractor of the present invention, unlike the preceding extractor has a disadvantage that the rotational power for refrigerant compression, and the rotational power for the condenser cooling fan to be further added, there is a concern that the energy efficiency is somewhat reduced. Of course, the overall efficiencies are excellent because the liquefaction performance is excellent, so the total operation time is short. To do all of the The coolant pump 21, which is the first priority and should always be operated at the same time as the operation of the motor, is directly connected to the motor 40 through a constant velocity gear. The condenser cooling fan 42, which will then be operated frequently, is connected by an electronic clutch 41 to a shaft directly connected to the motor. Finally, the refrigerant compressor 32, which requires the highest power while having the smallest number of operations, is connected to the motor through the reduction gear and the electronic clutch 41. The system control program compares the temperature of the coolant with the temperature of the ambient air to determine the operation of the refrigerator, and operates the medicine extractor with greater energy efficiency and lower noise by using the power of the drive motor with the electronic clutch as much as necessary. I can elicit patterns.

While the embodiments of the present invention have been described in detail with reference to the drawings, the technical spirit of the present invention is not limited to the above embodiments.

In other words, those of ordinary skill in the art to which the present invention pertains can utilize the technical spirit contained in the specification and drawings of the present invention, and, if necessary, simply change and simplify the description and drawings of the present invention. Although extended examples may be implemented, these are also clearly included in the scope of the present invention as expressed by the following claims.

The medicinal extract according to the present specification and drawings follows a conventional water vapor liquefaction system at atmospheric pressure, but if the heat cooker and the closed circulation pipeline are simply modified, the remaining core components, plate heat exchanger, can operate at a wide pressure and temperature. It can be effectively used as a concentrated extractor of new material by high or low pressure. In other words, it can be easily purchased without having to rely on expensive large fractional distillation facilities such as petrochemical plants and can be operated in a small space at a low cost in an independent space, which is also excellent for various medicine research, food manufacturing, ointment, and cosmetics.

10: heating cooker
11: Medicinal vapor outflow pipe
12: plate heat exchanger
13: unit flat tube
14: Intermediate reservoir for medicinal distillate
15: medicinal distillate inlet pipe
20: coolant tank
21: coolant pump
22: cooling water inlet pipe
23: coolant outlet pipe
30: refrigerant evaporator
31: refrigerant outlet pipe
32: refrigerant compressor
33: refrigerant condenser
34: refrigerant inlet pipe
40: drive motor
41: electronic clutch
42: condenser cooling fan
43: insulation wall

Claims (5)

delete delete The medicine vapor vapor outlet pipe 11, the medicine distillate inlet pipe 15 and the intermediate reservoir 14 of the medicine distillate is installed, the said vapor pipe selectively sealed the vapor vaporized from the heating water of the heating cooker 10 and In the medicine extractor having a structure of heat exchange between the cooling water between the inlet pipe and liquefied into the medicine distillation liquid to be returned back to the heating cooker (10),
A plate heat exchanger 12 is installed between the selectively sealed medicine vapor outlet pipe 11 and the medicine distillate inlet pipe 15.
The plate heat exchanger 12 has a unit structure in which the unit flat tubes 13 are horizontally stacked, and the drug substance vapor outlet pipe 11 is connected from an upper portion of the horizontally stacked structure, and the drug distillate inlet tube 15 is formed. It is characterized in that connected from the bottom of the horizontally stacked structure,
In the plate heat exchanger 12, the cooling water that is heat-exchanged with the chemical vapor or the chemical distillate is cooled by a freezer using an evaporative refrigerant,
The freezer, the medicine extractor, characterized in that it has a refrigerant evaporator 30 is inserted directly installed in the cooling water tank (20). The method of claim 3,
Among the flat plate tubes 13, the flat tube tubes through which the medicinal vapor or the medicinal distillate penetrate, have a smooth surface without a cooling fin so that a smooth distillate flow occurs regardless of irregular condensation. Herbal extractor, characterized in that having an inlet at the top, the outlet is arranged at the bottom. The method of claim 4, wherein
A heat insulation wall 43 is further formed between the refrigerant condenser 33 for condensing the refrigerant evaporated in the refrigerant evaporator 30 and the heater 10, and the coolant pump 21 and the refrigerant circulating the cooling water. At least two or more of the refrigerant compressor 32 for circulating the refrigerant and the condenser cooling fan 42 for cooling the refrigerant condenser 33 are selectively powered from the single driving motor 40 by the electronic clutch 41. Herbal extract, characterized in that.

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