CN110307703A - A kind of traditional Chinese medicine drying case - Google Patents

Abstract

The invention discloses a traditional Chinese medicine drying box, comprising: a box body; a material tray arranged in the box body; a ventilation pipe including a hot pipe and a cold pipe arranged in parallel on the top of the box body, and an outer pipe arranged outside the side wall of the box body ; One end of the hot pipe and the cold pipe communicates with the inside of the box, and the other end communicates with the outer pipe; the end of the hot pipe and the cold pipe connected with the inside of the box is provided with a damper; the air inlet of the circulating fan is far away from the hot pipe and the outer pipe. One end of the cold pipe is connected, and the air outlet is connected with one side of the lower surface of the material tray inside the box; the heating assembly is arranged in the hot pipe; the cooling assembly is arranged in the cold pipe. In the traditional Chinese medicine drying box provided by the invention, both hot air and cold air can be blown into the drying box, so that the drying box can be rapidly raised and cooled, so that the dried medicinal materials can be dried at alternating temperatures.

Description

A traditional Chinese medicine drying box

technical field

The invention relates to traditional Chinese medicine drying equipment, in particular to a traditional Chinese medicine drying box.

Background technique

The drying process of traditional Chinese medicine is not only to reduce the moisture contained in the medicinal parts to facilitate transportation and storage, but more importantly, the drying process is an important link in the formation of medicinal properties of Chinese medicinal materials and herbal pieces. Therefore, the technical methods and process conditions adopted for each Chinese medicinal material are very important for the efficacy of Chinese medicinal materials. Existing studies have shown that many traditional Chinese medicine drying processes can use alternating temperature drying methods. During the drying process, hot air and cold air are periodically introduced to prevent overheating of materials. When materials are in contact with heated air, not only moisture is removed, but also The temperature of the material will increase by a certain value, and the saturated vapor pressure of the moisture inside the material corresponding to this temperature is higher than the moisture vapor pressure in the cold air when it is in contact with the cold air. point. Within a certain allowable range, repeated heating and cooling can make the material temperature not exceed the allowable value and meet the drying requirements.

Hot air drying is a common method of drying traditional Chinese medicine, which is suitable for the drying of most Chinese medicinal materials. The hot air is taken away to break the balance of hot and humid air, so as to achieve the purpose of drying materials. The common hot air drying equipment is a hot air circulation drying oven, which adopts the fan circulation air supply mode, and the air source is sent to the inner chamber of the oven through the heater and the fan. However, hot air circulation ovens generally have the disadvantages of keeping the set temperature in a relatively large range after setting the temperature, and when the temperature needs to be lowered, the cooling speed is relatively slow, and it is impossible to achieve alternating temperature drying.

Contents of the invention

The purpose of the present invention is to solve the problem that the cooling speed of the box-type hot air drying equipment in the prior art is relatively slow and cannot achieve alternating temperature drying. Provided is a traditional Chinese medicine drying box capable of blowing hot air and cold air into the drying box, which can realize rapid cooling and rapid heating of the drying box, so that dried medicinal materials can be dried at alternating temperatures.

In order to solve the above-mentioned technical problems, the embodiment of the present invention discloses a traditional Chinese medicine drying box, comprising: a box body, a box door is arranged on the side wall of the box body; The hot pipe and the cold pipe on the top of the box, and the outer pipe arranged outside the side wall of the box; one end of the hot pipe and the cold pipe is connected with the inside of the box, and the other end is connected with the outer pipe; the hot pipe and the cold pipe are connected with the box The end connected to the inside is provided with a damper; the air inlet of the circulating fan is connected to the end of the outer pipe away from the hot pipe and the cold pipe, and the air outlet is connected to the side of the lower surface of the material tray inside the box; the heating component is arranged in the hot pipe; The refrigeration component is arranged in the cold pipeline.

With the above scheme, the traditional Chinese medicine drying box is equipped with an airflow heating and airflow cooling mechanism at the same time, which can make the airflow heating or airflow cooling according to the specific requirements of the drying process. The heating component and the cooling component are arranged in two parallel spaces without affecting each other. It can achieve rapid cooling and rapid heating of the drying box, so that the dried medicinal materials can be dried at alternating temperatures.

According to another specific embodiment of the present invention, in the traditional Chinese medicine drying box disclosed in the embodiment of the present invention, a heat insulation layer is arranged between the hot pipe and the cold pipe.

Using the above solution, setting the heat insulation layer can reduce the heat transfer between the hot pipe and the cold pipe, and prevent the cooling assembly from being turned on when the heating assembly is turned off. After the cold pipe is used for ventilation, the residual temperature in the hot pipe is high, which affects the cooling effect of the refrigeration assembly.

According to another specific embodiment of the present invention, in the traditional Chinese medicine drying box disclosed in the embodiment of the present invention, a first heat dissipation component is provided on the side of the heat pipe away from the heat insulation layer.

With the above scheme, the first heat dissipation component is set. After the heating component is turned off, the hot air flow of the hot pipe can be released to the outside of the box, thereby reducing the temperature of the hot pipe, which is conducive to keeping the temperature inside the box stable or reducing the temperature inside the box as soon as possible.

According to another specific embodiment of the present invention, in the traditional Chinese medicine drying box disclosed in the embodiment of the present invention, a cooling inner cavity is also arranged in the cold pipe; the outer surfaces of both ends of the cooling inner cavity are in contact with the inner surfaces of both ends of the cold pipe; The cooling assembly includes a semiconductor cooling chip; the semiconductor cooling chip is arranged between the cooling inner cavity and the cold pipe; the cold end of the semiconductor cooling chip is in contact with the outer wall of the cooling inner cavity, and the hot end of the semiconductor cooling chip is in contact with the second heat dissipation component ; The peripheral wall of the cold conduction inner cavity includes heat conduction material.

Using the above scheme, semiconductor technology is used to cool the air in the drying box to adjust the temperature of the drying box. The semiconductor cooling chip has the advantages of simple structure, no pollution, no noise, high reliability and convenient maintenance.

According to another specific embodiment of the present invention, in the traditional Chinese medicine drying box disclosed in the embodiment of the present invention, the second heat dissipation assembly includes a heat sink and a fan; The hot end abuts, and the fan is arranged on the cold pipe, opposite to the heat sink.

With the above-mentioned solution, when the semi-conductor cooling sheet realizes the cooling function, it relies on the heat sink as a heat exchanger for convective heat dissipation, ensuring that the hot end of the semiconductor cooling sheet maintains a relatively low temperature, thereby achieving long-term cooling; On the basis of the fan, it also includes a fan to improve the convective heat transfer coefficient of the heat sink by means of forced ventilation to ensure the cooling effect.

According to another specific embodiment of the present invention, in the traditional Chinese medicine drying box disclosed in the embodiment of the present invention, the second heat dissipation assembly includes a water-cooled radiator; Hot end butt.

Using the above scheme, the water-cooled radiator uses water as the cooling medium, and the heat of the hot end is taken away by the temperature rise of the water, so as to ensure that the hot end of the semiconductor refrigeration chip maintains a relatively low temperature, thereby realizing long-term cooling.

According to another specific embodiment of the present invention, in the traditional Chinese medicine drying box disclosed in the embodiment of the present invention, the refrigeration component is a water-cooled heat exchanger.

Using the above scheme, a water-cooled heat exchanger is installed in the cold pipeline. When the hot air in the box enters the cold pipeline, cooling water is passed into the water-cooled heat exchanger to exchange heat with the hot air to realize cooling of the hot air. The air flow enters the oven again through the outer pipe and the circulation fan to achieve cooling.

According to another specific embodiment of the present invention, in the traditional Chinese medicine drying box disclosed in the embodiment of the present invention, the hot pipe and the cold pipe are provided with the same door position in the vertical direction, and the door is matched with the cross section; and the door is matched with the hot pipe and the cold pipe The pipe wall is slidingly connected; rely on the sliding door to block the end of the hot pipe communicating with the inside of the box, or block the end of the cold pipe communicating with the inside of the box.

By adopting the above scheme, the sliding door is used to block the hot pipe or the cold pipe, so that the airflow enters the cold pipe or the hot pipe for cooling or heating.

According to another specific embodiment of the present invention, in the traditional Chinese medicine drying box disclosed in the embodiment of the present invention, an airflow guide plate is also arranged in the box, and the airflow guide plate is arranged on the side close to the upper surface of the material tray; The lower surface of the tray passes through the material tray, and the airflow guide plate guides the airflow to the ventilation pipe.

Using the above scheme, the airflow guide plate is set to guide the airflow direction, so that the hot or cold airflow blown from the circulation fan can pass through the material tray from the lower surface of the material tray, so as to realize the heating or cooling of the dried Chinese medicine, and take away the moisture in it at the same time. Ascends up the vent pipe, enters the hot or cold pipe for heating or cooling before recirculation.

According to another specific embodiment of the present invention, the traditional Chinese medicine drying box disclosed in the embodiment of the present invention further includes an activated carbon filter layer arranged between the end of the hot pipe and the cold pipe communicating with the inside of the box and the damper.

With the above scheme, the activated carbon filter layer can absorb moisture and impurities in the airflow, purify the circulating airflow, and benefit the drying effect.

Description of drawings

Fig. 1 is a schematic side view sectional view of an embodiment of a traditional Chinese medicine drying oven of the present invention;

Fig. 2 is a top view cross-sectional schematic diagram of an embodiment of a traditional Chinese medicine drying oven of the present invention;

Fig. 3 is a top view sectional schematic diagram of the second embodiment of the drying oven for traditional Chinese medicine of the present invention;

Fig. 4 is a top cross-sectional schematic diagram of the third embodiment of the traditional Chinese medicine drying oven of the present invention.

Reference signs:

1. Box body; 2. Material tray; 3. Ventilation pipe; 31. Heat pipe; 311. Heating component; 312 First cooling component; 32. Cold pipeline; 321. Refrigeration component; Type heat exchanger; 322. Cooling cavity; 323. Second heat dissipation component; 3231. Heat sink; 3232. Fan; 3233. Water cooling radiator; 33. Outer pipe; 34. Heat insulation layer; 4. Circulation fan; 5. Airflow guide plate; 6. Activated carbon filter layer.

Detailed ways

The implementation of the present invention will be illustrated by specific specific examples below, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. Although the description of the present invention will be presented in conjunction with a preferred embodiment, it does not mean that the features of the invention are limited to this embodiment. On the contrary, the purpose of introducing the invention in conjunction with the embodiments is to cover other options or modifications that may be extended based on the claims of the present invention. The following description contains numerous specific details in order to provide a thorough understanding of the present invention. The invention may also be practiced without these details. Also, some specific details will be omitted from the description in order to avoid obscuring or obscuring the gist of the present invention. It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

It should be noted that in this specification, similar numerals and letters denote similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be identified in subsequent drawings. for further definition and explanation.

In the description of this embodiment, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "bottom" etc. is based on the orientation or positional relationship shown in the drawings, or is The conventionally placed orientation or positional relationship of the inventive product during use is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, Therefore, it should not be construed as limiting the invention.

The terms "first", "second", etc. are only used for distinguishing descriptions, and should not be construed as indicating or implying relative importance.

In the description of this embodiment, it should also be noted that, unless otherwise clearly specified and limited, the terms "setting", "connecting" and "connecting" should be understood in a broad sense, for example, it can be a fixed connection or a A detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection through an intermediary, and it may be an internal communication between two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in this embodiment in specific situations.

In order to make the purpose, technical solution and advantages of the present invention clearer, the following will further describe the implementation of the present invention in detail in conjunction with the accompanying drawings.

The embodiment of the present invention discloses that in order to solve the above technical problems, the embodiment of the present invention discloses a traditional Chinese medicine drying box, as shown in Figure 1-4, comprising: a box body 1, a box door is set on the side wall of the box body 1; Disk 2, net shape, is arranged in box body 1; Ventilation pipe 3, comprises the heat pipe 31 and the cold pipe 32 that are arranged in parallel on the inner top of box body 1, and the outer pipe 33 that is arranged on the outside of box body 1 side wall; One end of the pipeline 31 and the cold pipeline 32 communicates with the inside of the box body 1, and the other end communicates with the outer pipeline 33; the end of the hot pipeline 31 and the cold pipeline 32 communicated with the inside of the box body 1 is provided with a damper 35; the circulation fan 4, the air inlet It communicates with the end of the outer pipe 33 away from the hot pipe 31 and the cold pipe 32, and the air outlet communicates with the side of the lower surface of the material tray 2 inside the box body 1; the heating assembly 311 is arranged in the hot pipe 31; the refrigeration assembly is arranged in the cold pipe 31. Inside the pipe 32.

Specifically, the traditional Chinese medicine drying box includes a box body 1, and a box door is provided on one side of the box body 1; a mesh material tray 2 for placing Chinese medicine to be dried is arranged inside the box body 1, and the material tray 2 can be provided with one or at least two mutually Parallel, can be fixedly connected or detachably connected on the inner wall of the box body 1, for example, a convex member that is adapted to the shape of the material tray 2 can be set on the box body 1 wall that is not provided with a box door on the inner wall of the box body 1, so that the material The disk 2 is firmly overlapped in the box body 1 . Ventilation pipe 3 comprises, at the box body 1 top, that is, the hot pipe 31 and the cold pipe 32 arranged in parallel on the side away from the ground of the box body 1, the outer pipe 33 arranged outside the box body 1; one end of the hot pipe 31 and the cold pipe 32 It communicates with the inside of the box body 1, and the other end communicates with the outer pipeline 33; one end of the hot pipeline 31 and the cold pipeline 32 communicated with the inside of the box body 1 is provided with a damper 35, and the hot pipeline 31 or the cold pipeline 32 is opened by the switch of the damper 35, To realize heating or cooling the air flow; the damper 35 can be rotatably connected to the walls of the hot pipe 31 and the cold pipe 32, or can be movably connected to the walls of the hot pipe 31 and the cold pipe 32. A circulating fan 4 is arranged outside the box body 1, the air inlet of the circulating fan 4 communicates with the end of the outer duct 33 away from the hot duct 31 and the cold duct 32, and the air outlet communicates with the inside of the box body 1. More specifically, the air outlet can be provided On the side of the box body 1 close to the ground, a wall with ventilation holes can be provided between the box body 1, and the position of the air inlet is at the bottom of the material tray 2; 2 The lower surface passes through the mesh of the material tray 2, thereby changing the temperature of the dried traditional Chinese medicine on the material tray 2 and taking away the moisture therein. A heating component 311 is arranged in the hot pipe 31, and the heating component 311 can be steam heating, an electric heating tube, a far-infrared heating component, etc., for example, a 15kW/h group control electric heating tube can be configured; It is a semiconductor refrigeration chip, a condenser, etc.

It should be noted that the circulating fan 4 and the outer duct 33 are preferably arranged on the outside of the box body 1 adjacent to the side where the box door is set; and the inner pipeline of the cold pipeline 32; an airflow guide mechanism can also be set in the box body 1, so that the airflow enters the inner pipeline after passing through the material tray 2, and when there are multiple material trays 2, the airflow can enter the box from the air outlet The lower surface of each material tray 2 in 1 passes through the material tray 2 and enters the inner pipeline.

It should also be noted that the circulating fan 4 can choose WGF-3 axial flow fan. The traditional Chinese medicine drying box can also include a temperature control system, which detects temperature changes and controls the drying box according to a preset temperature, and starts or turns off the heating component 311 or the cooling component 321 . An air outlet should also be provided on the box body 1 close to the hot pipe 31 and the cold pipe 32, and an air inlet should be provided on the side of the heating assembly 311 or the cooling assembly 321 on the hot pipe 31 and the cold pipe 32 away from the outer pipe 33, so that the moisture content can be lowered. High airflow is discharged in time.

The traditional Chinese medicine drying box provided by the present invention is equipped with airflow heating and airflow cooling mechanism at the same time, which can make the airflow heating or airflow cooling according to the specific requirements in the drying process. The heating assembly 311 and the cooling assembly 321 are arranged in two parallel spaces. There is no mutual influence, and the drying oven can be rapidly heated and rapidly cooled, so that the dried medicinal materials can be dried at alternating temperatures.

According to another specific embodiment of the present invention, as shown in FIGS. 2-4 , a heat insulation layer 34 is provided between the hot pipe 31 and the cold pipe 32 . Specifically, a heat insulating material layer can be provided between the hot pipe 31 and the cold pipe 32, and the heat insulating material layer refers to a spacer layer provided with a material with heat insulating properties, such as asbestos, diatomaceous earth, glass wool, fabric fiber, etc. , metal foil and other materials.

Setting the heat insulation layer 34 can reduce the heat transfer between the hot pipe 31 and the cold pipe 32, and prevent the heating assembly 311 from being turned off, the refrigeration assembly 321 started, and after the cold pipe 32 is used for ventilation, the residual temperature in the hot pipe 31 is relatively high. The refrigeration component 321 has a refrigeration effect.

According to another specific embodiment of the present invention, as shown in FIGS. 2-4 , a first heat dissipation component 312 is provided on a side of the heat pipe 31 away from the heat insulation layer 34 . Specifically, a heat dissipation hole or a heat dissipation assembly may be provided on the side of the heat pipe 31 facing the outside of the box body 1, or a heat dissipation assembly may be provided on the side of the heat pipe 31 away from the heat insulation layer 34. The first heat dissipation assembly 312 may be a fan, Water cooling radiator, etc. In this embodiment, a first heat dissipation component 312 is provided on the wall of the heat pipe 31 on the side of the heat pipe 31 away from the heat insulation layer 34 , and the fan may be, for example, a YWF-4D-300S fan.

The first heat dissipation component 312 is set. After the heating component 311 is turned off, the hot air flow of the heat pipe 31 can be accelerated to be released outside the box body 1, thereby reducing the temperature of the heat pipe 31, which is conducive to keeping the temperature inside the box body 1 stable or lowering the box body 1 as soon as possible. internal temperature.

According to another specific embodiment of the present invention, as shown in Figures 2 and 3, a cooling inner cavity 322 is also provided in the cold pipe 32; The cooling assembly 321 includes a semiconductor cooling plate 3211; the semiconductor cooling plate 3211 is arranged between the cooling inner cavity 322 and the cold pipe 32; the cold end of the semiconductor cooling plate 3211 is in contact with the outer wall of the cooling inner cavity 322, The hot end abuts against the second heat dissipation component 323 ; the surrounding wall of the cooling cavity 322 includes a heat conducting material.

Specifically, the cooling inner chamber 322 is a cavity provided at both ends of the cold pipe 32 and extends in the same direction as the cold pipe 32; After the air flow enters the cold pipe 32 from the box body 1, it enters the cooling inner cavity 322 for circulation, and exits the cold guiding inner cavity 322 and exits the cooling pipe 32 at the same time. There is still a gap between the cold conduction inner cavity 322 and the cold pipe 32, so as to install the semiconductor cooling chip 3211; The cross-sectional area at both ends is larger than the cross-sectional area in the middle, and the cross-sectional area at both ends of the cold pipe 32 is less than or equal to the cross-sectional area in the middle, so that a gap is formed between the middle section of the cold pipe 32 and the cooling inner cavity 322; The inner chamber 322 can be set so that the cross-sections at both ends are matched with the cross-section of the cold pipe 32, and the cross-sectional area at both ends of the cold-conducting inner chamber 322 is equal to the cross-sectional area in the middle, while the cross-sectional area at both ends of the cold pipe 32 is smaller than the cross-sectional area in the middle. area, so that a gap is formed between the middle section of the cold pipe 32 and the cooling inner cavity 322 . The gap can be formed between all directions of the inner circumference of the cold pipe 32 and the cooling inner cavity 322; it can also be formed between the other side and the cooling inner cavity 322 except for the side where the heat insulating layer 34 is set; One side of the heat layer 34 and the side facing the inside of the box body 1 are formed between the other side or both sides and the cooling inner cavity 322 .

The cold end of the semiconductor cooling chip 3211 is in contact with the outer wall of the cooling inner cavity 322, and the hot end is in contact with the second heat dissipation component 323; the semiconductor cooling chip 3211 is also called a thermoelectric semiconductor cooling chip, which is composed of a pair of galvanic elements, which needs to be explained Yes, the operation of the semiconductor cooling plate 3211 needs to be connected to a power supply (not shown in the drawings). After the power supply is connected, the power supply provides current. When the current passes, heat absorption and heat dissipation will occur on the two opposite ends of the semiconductor cooling plate 3211. , the heat-absorbing end is the cold end, the exothermic end is the hot end, and there will be heat transfer between the cold and hot ends. The cold end abuts against the outer wall of the cooling inner cavity 322 to absorb heat, which can produce a cooling effect on the cooling inner cavity 322, and the surrounding wall of the cooling inner cavity 322 includes heat-conducting materials, which is beneficial to the cooling effect. One or more peltiers 3211 can be set as required, for example, multiple peltiers of model TEC1-12703 can be set; the power supply components are required to be able to provide direct current, and the voltage must not exceed the rated voltage. The hot end abuts against the second heat dissipation component 323. When the cold and hot ends of the semiconductor cooling plate 3211 reach an equilibrium point, the temperature of the hot and cold ends will not continue to change. It is necessary to reduce the temperature of the hot end to achieve continuous cooling, so the second heat dissipation component 323 is provided The second heat dissipation assembly 323 can be set in whole or in part in the gap formed between the cold pipe 32 and the cooling inner cavity 322; specifically, the second heat dissipation assembly 323 can include fins for convective heat dissipation, and can also include a fan at the same time Forced ventilation improves the coefficient of convective heat transfer, or it can include a water-cooled radiator for liquid cooling and heat dissipation, or a phase-change radiator for phase-change heat dissipation.

Using the above scheme, semiconductor technology is used to cool the air in the drying box to adjust the temperature of the drying box. The semiconductor cooling chip has the advantages of simple structure, no pollution, no noise, high reliability and convenient maintenance.

According to another specific embodiment of the present invention, as shown in FIG. 2 , the second heat dissipation assembly 323 includes a heat sink 3231 and a fan 3232; The hot end of 3211 abuts, and the fan 3232 is arranged on the cold pipe 32 , opposite to the cooling fin 3231 .

Specifically, the second heat dissipation component 323 includes a heat sink 3231, which abuts against the hot end of the semiconductor cooling fin 3211, and is arranged in the cavity between the cooling inner cavity 322 and the cold pipe 32; and, the cooling fin 3231 is far away from the semiconductor cooling fin One side of 3211 should be in a free state and not connected with other components; when the semiconductor cooling plate 3211 realizes the cooling function, it relies on the heat sink 3231 as a heat exchanger for convective heat dissipation to ensure that the hot end of the semiconductor cooling plate 3211 maintains a relatively low temperature. temperature, so as to achieve long-term refrigeration; the heat dissipation assembly also includes a fan 3232 on the basis of installing the heat sink 3231, and the fan 3232 is installed on the wall of the cold pipe 32, opposite to the heat sink 3231, and can blow air to the heat sink 3231; The fan 3232 ventilates the cooling fins 3231 to increase the convective heat transfer coefficient of the cooling fins 3231 by means of forced ventilation to ensure the cooling effect.

It should be noted that the heat sink 3231 should be made of a material with good thermal conductivity, which can freely dissipate heat in still air and is easy to use; the contact between the semiconductor cooling fin 3211 and the heat sink 3231 should be good, and the contact surface can be coated with a thin layer of heat conduction silicone grease. The fan 3232 can be an axial flow fan, such as a model YWF-4D-200S fan, or a centrifugal fan.

According to another specific embodiment of the present invention, as shown in FIG. 3 , the second heat dissipation assembly 323 includes a water-cooled radiator 3233; The hot end abuts. The water-cooled radiator uses water as the cooling medium, and the heat of the hot end is taken away by the temperature rise of the water, so as to ensure that the hot end of the semiconductor cooling chip 3211 maintains a relatively low temperature, thereby realizing long-term cooling. The water-cooling radiator 3233 should be connected to a water cooling and circulation system (not shown in the drawings) arranged outside the box body 1, such as a water pump and a water cooling device. For example, a water-cooled radiator of model XHX877 can be selected.

According to another specific embodiment of the present invention, the refrigeration assembly 321 is a water-cooled heat exchanger 3212 . A water-cooled heat exchanger 3212 is installed in the cold pipe 32, and cooling water is passed in. When the hot air flow in the box body 1 enters the cold pipe 32, cooling water is passed into the water-cooled heat exchanger 3212 to exchange heat with the hot air flow, so as to achieve The hot air flow cools down, and the air flow after cooling enters the oven again through the outer pipeline 33 and the circulation fan 4 to realize cooling. It should be noted that the water-cooled heat exchanger 3212 can be of tube type or plate type, and can be installed near the inner wall of the cold pipeline 32 , or can be installed in the entire inner cavity of the cold pipeline 32 . The water-cooled heat exchanger 3212 realizes heat exchange, must be provided with the cooling water inlet (not shown in the accompanying drawing) that is connected with the cold pipeline 32 and the water outlet (not shown in the accompanying drawing) after heat exchange; The cooling device, the water cooling device may also be a circulating water cooling device connected to the water outlet, which is not specifically limited in this embodiment.

According to another specific embodiment of the present invention, as shown in Fig. 2-4, the position vertical direction cross-section of hot pipe 31 and cold pipe 32 setting damper 35 is the same, and damper 35 matches with cross-section; And, damper 35 and heat Pipeline 31 and cold pipeline 32 walls are slidingly connected; rely on sliding door 35 to block one end of hot pipeline 31 communicating with the inside of box body 1, or block one end of cold pipeline 32 communicating with box body 1 inside.

Specifically, a door 35 can be provided at the end where the cold pipe 32 and the hot pipe 31 communicate with the inside of the box body 1, and the cold pipe 32 or the hot pipe 31 can be blocked or opened by rotating or sliding, so that one of the pipes is closed and the other is closed. The pipes are unobstructed, and the airflow in the box body 1 passes through one of the pipes to realize the cooling or heating function. In this embodiment, the hot pipe 31 and the cold pipe 32 are provided with the same vertical cross-section at the position of the damper 35, and a damper 35 is provided at the end where the cold pipe 32 and the hot pipe 31 communicate with the inside of the box body 1 to match the cross-section; And, the door 35 is slidably connected with the wall of the hot pipe 31 and the wall of the cold pipe 32, so that the door 35 can block the end where the hot pipe 31 communicates with the inside of the box body 1 by sliding, or block the end where the cold pipe 32 communicates with the inside of the box body 1. one end. Specifically, slide rails can be arranged at the upper and lower ends of the walls of the cold pipe 32 and the heat pipe 31 , and matching sliding parts are arranged on the door 35 to realize the sliding connection between the door 35 and the walls of the cold pipe 32 and the wall of the heat pipe 31 . It should be noted that the door 35 and the slide rail can be provided with a transmission part, and a control part can be provided outside the box body 1. The transmission part is connected with the control part, and the sliding position of the door 35 is controlled by the control part; the transmission part can also be arranged with the drying box. The control system is electrically connected to control the pipeline blocked by the damper 35. This embodiment does not specifically limit it.

According to another specific embodiment of the present invention, as shown in Figure 1, an airflow guide plate 5 is also provided in the box body 1, and the airflow guide plate 5 is arranged on the side close to the upper surface of the material tray 2; The lower surface of the tray 2 passes through the material tray 2, and the airflow guide plate 5 guides the airflow to the ventilation pipe 3.

Specifically, the air flow guide plate 5 can be arranged obliquely on the upper surface of the material tray 2; the connection end between the air flow guide plate 5 and the box body 1 near the side of the circulating fan 4 is lower than the connection end with the box body 1 near the side of the door 35 When the material tray 2 is more than one, an airflow guide plate 5 can be set on the upper surface side of each material tray 2, and an airflow guide plate 5 can also be added under the bottommost material tray 2. The airflow guide plate 5 is set to guide the airflow direction, so that the hot or cold airflow blown from the circulation fan 4 can pass through the material tray 2 from the lower surface of the material tray 2, so as to heat up or cool down the dried Chinese medicine, and take away the moisture therein, and then Rise to the ventilation pipe 3, enter the hot pipe 31 or the cold pipe 32 for heating or cooling and then circulate.

According to another specific embodiment of the present invention, as shown in Figures 1, 3 and 4, an activated carbon filter layer 6 is also included, which is arranged between the end of the hot pipe 31 and the cold pipe 32 communicating with the inside of the box body 1 and the damper 35 .

After the drying air passes through the dried Chinese medicine, it takes away the moisture in the dried Chinese medicine, and may also take away the dust. The airflow enters the circulation, which affects the life of the equipment and affects the drying effect. Therefore, setting the activated carbon filter layer 6 can absorb moisture and impurities in the airflow, purify the circulating airflow, and be beneficial to the drying effect. Specifically, for example, an activated carbon filter layer with a filter pore diameter of 0.22 μm may be provided.

Although the present invention has been illustrated and described with reference to some preferred embodiments of the present invention, those skilled in the art should understand that the above content is a further detailed description of the present invention in conjunction with specific embodiments, and cannot be deemed Embodiments of the present invention are limited only by these descriptions. Those skilled in the art may make various changes in form and details, including several simple deduction or substitutions, without departing from the spirit and scope of the present invention.

Claims (10)

1. a kind of traditional Chinese medicine drying case characterized by comprising

Chamber door is arranged in cabinet, the wall box；

Material disc, it is netted, it is set in the cabinet；

Ventilation duct, heat pipeline and cold pipeline including being arranged in parallel in the cabinet inner top, and be arranged in the wall box The Outer Tube in outside；One end of the heat pipeline and the cold pipeline is connected to the box house, the other end and the outer tube Road connection；One end that the heat pipeline and the cold pipeline are connected to the box house is provided with gear door；

Circulating fan, air inlet are connected to the Outer Tube far from one end of the heat pipeline and the cold pipeline, air outlet with The side of material disc lower surface described in the box house is connected to；

Heating component is set in the heat pipeline；

Cooling assembly is set in the cold pipeline.

2. traditional Chinese medicine drying case according to claim 1, which is characterized in that be arranged between the heat pipeline and the cold pipeline There is thermal insulation layer.

3. traditional Chinese medicine drying case according to claim 2, which is characterized in that side of the heat pipeline far from the thermal insulation layer First radiating subassembly is set.

4. traditional Chinese medicine drying case according to claim 2, which is characterized in that be additionally provided with conduction cooling inner cavity in the cold pipeline； Conduction cooling inner cavity both ends outer surface is abutted with the cold pipe ends inner surface；The cooling assembly includes semiconductor refrigerating Piece；The semiconductor chilling plate is set between the conduction cooling inner cavity and cold pipeline；The cold end of the semiconductor chilling plate and institute It states cavity outer wall in conduction cooling to abut, the hot end of the semiconductor chilling plate is abutted with the second radiating subassembly；The week of the conduction cooling inner cavity Wall includes Heat Conduction Material.

5. traditional Chinese medicine drying case according to claim 4, which is characterized in that second radiating subassembly includes cooling fin and wind Fan；The cooling fin is set between the conduction cooling inner cavity and cold pipeline, is abutted with the hot end of the semiconductor chilling plate, institute Fan is stated to be set on the cold pipeline, it is opposite with the cooling fin.

6. traditional Chinese medicine drying case according to claim 4, which is characterized in that second radiating subassembly includes water-cooling Device；The water-cooled radiator is set between the conduction cooling inner cavity and the cold pipeline, the hot end with the semiconductor chilling plate It abuts.

7. traditional Chinese medicine drying case according to claim 2, which is characterized in that the cooling assembly is water-cooled heat exchanger.

8. traditional Chinese medicine drying case according to claim 1-7, which is characterized in that the heat pipeline and the cold pipeline The position vertical direction section that the gear door is arranged is identical, the gear door and the cross-sections match；Also, the gear door with it is described Heat pipeline and the cold duct wall are slidably connected；Heat pipeline is stated by the movement gear door shield residence to be connected to the box house One end, or block one end that the cold pipeline is connected to the box house.

9. traditional Chinese medicine drying case according to claim 1-7, which is characterized in that be additionally provided with air-flow in the cabinet Guide plate, the gas-flow deflector are disposed in proximity to the side of the material disc upper surface；The air-flow of the air outlet is from described By the material disc, the gas-flow deflector is oriented to the air-flow and leads to the ventilation duct for material disc lower surface.

10. traditional Chinese medicine drying case according to claim 1-7, which is characterized in that it further include activated carbon filter layer, if It is placed between one end and the gear door that the heat pipeline and the cold pipeline are connected to the box house.