Traditional Chinese medicine drying device with rapid cooling function

Abstract

The application discloses a traditional Chinese medicine drying device with a rapid cooling function, and belongs to the technical field of traditional Chinese medicine drying. The drying box cooling assembly is formed by a water cooler, a water outlet pipe, a water return pipe and a first plate heat exchanger, and is used for actively and rapidly cooling the drying box; the water adding assembly is formed by a first water tank, a water adding pipeline and a discharge pipe, and is used for providing hot water to promote evaporation in a drying stage and providing cooling water to absorb heat in a cooling stage; the air extraction assembly is formed by a vacuum pump, a first air extraction pipe, a condenser and a buffer tank, and is used for extracting the gas in the box to establish a low-pressure environment and improve the drying efficiency; the vacuum pump cooling assembly is formed by a second plate heat exchanger and a second water tank, and is used for cooling the vacuum pump to prevent the equipment from overheating; the air supplementing assembly is formed by an air supplementing machine and an air outlet pipeline, and is used for conveying heated gas into the box and cooperatively controlling the vacuum degree; and the components are cooperatively used to realize rapid cooling, shorten the production cycle and guarantee the stability of active ingredients of traditional Chinese medicinal materials.

Description

Technical Field

[0001] This application relates to the technical field of drying traditional Chinese medicine, and in particular to a drying device for traditional Chinese medicine with a rapid cooling function. Background Technology

[0002] In the field of traditional Chinese medicine production, some medicinal herbs contain high levels of sugar. These sugars need to be effectively removed during processing to ensure the quality and stability of the final product. Current technology typically uses a drying oven to heat and evaporate the medicinal herbs, converting the sugars into a viscous state through high temperatures, facilitating evaporation and removal. Subsequently, during the cooling stage, the sugars gradually solidify into lumpy solids, making separation or further processing easier.

[0003] However, current cooling methods primarily involve cutting off the heat source to the drying chamber after evaporation, relying on ambient temperature to allow the chamber to cool naturally. This natural cooling method, lacking an active cooling mechanism, is extremely slow and often takes a considerable amount of time to complete. This lengthy cooling process significantly extends the production cycle, reduces equipment utilization, and lowers overall production efficiency. Furthermore, excessively long cooling times may adversely affect the active ingredients in traditional Chinese medicine, such as causing degradation or alteration of certain effective components, thereby impacting the efficacy and safety of the medicine. Utility Model Content

[0004] To address the problem of slow cooling speed in traditional Chinese medicine drying devices leading to long production cycles, this application provides a traditional Chinese medicine drying device with rapid cooling function.

[0005] The technical solution of the traditional Chinese medicine drying device with rapid cooling function provided in this application is as follows: A traditional Chinese medicine drying device with rapid cooling function includes a drying chamber, a drying chamber cooling assembly, and a water supply assembly. The drying chamber cooling assembly includes a chiller, a water outlet pipe, a water return pipe, and a first plate heat exchanger. The chiller is located on one side of the drying chamber, the water outlet pipe is located on the chiller, the first plate heat exchanger is located at the end of the water outlet pipe, and the water return pipe is located between the first plate heat exchanger and the chiller. The water supply assembly includes a first water tank, a water supply pipe, and a discharge pipe. The first water tank is located on one side of the drying chamber, the water supply pipe is located between the first water tank and the drying chamber, and the water supply pipe also passes through the first plate heat exchanger. A first pulse pump is also provided on the water supply pipe. The discharge pipe is located between the drying chamber and the first water tank.

[0006] By adopting the above technical solution, the drying oven cooling assembly generates a cooling medium through a chiller. This cooling medium flows through the outlet pipe and exchanges heat with the water in the inlet pipe at the first plate heat exchanger, thereby cooling the water flowing into the drying oven. The cooled water then absorbs heat upon entering the drying oven and subsequently flows back to the first water tank through the discharge pipe, forming an independent active cooling circulation loop. This design achieves forced rapid cooling of the drying oven, effectively shortening the time required for the equipment to cool from a high-temperature drying state to room temperature, and improving production efficiency.

[0007] Preferably, the water supply assembly further includes a steam pipe, a steam boiler is provided on one side of the drying box, one end of the steam pipe is set on the steam boiler, and the other end of the steam pipe is set on the steam boiler after passing through the first plate heat exchanger; an outlet valve is provided on the outlet pipe, and a return valve is provided on the return pipe.

[0008] By adopting the above technical solution, the steam pipe flows through the first plate heat exchanger, which can serve as an independent heat source to heat the water in the water supply pipe, providing the necessary heat for the evaporation treatment of Chinese medicinal materials. The setting of the outlet and return water valves allows the cooling circuit of the drying chamber cooling components to be opened or closed according to process requirements, realizing flexible and reliable switching between heating and cooling modes.

[0009] Preferably, the water supply assembly further includes a return water pipe, which is disposed between the drying chamber and the first water tank, and a second pulse pump is provided on the return water pipe; the first pulse pump is used to pump water from the first water tank into the drying chamber, and the second pulse pump is used to pump water from the drying chamber into the first water tank.

[0010] By adopting the above technical solution, the return water pipe and the second pulse pump form an independent return water path, which can quickly drain the water stored in the drying box and jacket and transport it to the first water tank before the cooling program starts. This function prepares the conditions for the subsequent rapid cooling process, avoids the adverse effects of residual hot water on the cooling effect, and further ensures cooling efficiency.

[0011] Preferably, a vacuum pump assembly is provided on one side of the drying chamber. The vacuum pump assembly includes a vacuum pump and a first vacuum pipe, which is disposed between the vacuum pump and the drying chamber.

[0012] By adopting the above technical solution, the gas extraction component continuously extracts gas from the drying chamber through a vacuum pump and a first extraction pipe, thereby establishing and maintaining a stable low-pressure environment inside the chamber. Under this environment, the boiling point of water is lowered, allowing the moisture in the medicinal materials to evaporate rapidly at a relatively low temperature, improving drying efficiency and helping to protect heat-sensitive components.

[0013] Preferably, the vacuum assembly further includes a second vacuum pipe, a condenser, and a buffer tank. The condenser is disposed on one side of the drying chamber, and the first vacuum pipe connects the drying chamber to the condenser. The buffer tank is disposed at the lower end of the condenser. The second vacuum pipe connects the buffer tank to the vacuum pump.

[0014] By adopting the above technical solution, the condenser and buffer tank are used to cool and separate the high-temperature and high-humidity gas extracted from the drying chamber. The condenser condenses most of the water vapor into liquid water, while the buffer tank collects the condensate and separates the residual gas. This process effectively reduces the humidity and temperature of the gas entering the vacuum pump, protecting the vacuum pump and maintaining the stable operation of the pumping system.

[0015] Preferably, a vacuum pump cooling assembly is provided on one side of the vacuum pump. The vacuum pump cooling assembly includes a second plate heat exchanger and a second water tank. The second plate heat exchanger is disposed on the outlet pipe, and the second water tank is disposed on one side of the vacuum pump. A drain pipe is provided on the second water tank, and the end of the drain pipe is disposed on the vacuum pump. The drain pipe also passes through the second plate heat exchanger. A water inlet pipe is also provided on the second water tank, and the end of the water inlet pipe is also disposed on the vacuum pump. The drain pipe is used to transfer water from the second water tank to the vacuum pump, and the water inlet pipe is used to transfer water from the vacuum pump to the second water tank.

[0016] By adopting the above technical solution, the vacuum pump cooling assembly cools the cooling water flowing to the vacuum pump through a second plate heat exchanger. The cooling water circulates between the second water tank and the vacuum pump, continuously carrying away the heat generated during the operation of the vacuum pump, thereby controlling the operating temperature of the vacuum pump within a reasonable range and ensuring its long-term operational reliability.

[0017] Preferably, the vacuum pump cooling assembly further includes a cooling pipe, one end of which is connected to the water outlet pipe, and the other end of which passes through the condenser and is connected to the water return pipe.

[0018] By adopting the above technical solution, the cooling pipe guides part of the cooling medium in the drying chamber's cooling assembly to the condenser, providing the condenser with additional cooling capacity. This enhances the condensation effect on the extracted steam, improves the working efficiency of the extraction assembly, and reduces the processing load on the vacuum pump.

[0019] Preferably, a gas replenishment component is also provided on one side of the drying chamber. The gas replenishment component includes a gas replenisher and an air outlet pipe. The gas replenisher is located on one side of the drying chamber, and the air outlet pipe is located between the gas replenisher and the drying chamber. A pulse valve and a heater are provided on the air outlet pipe, and the heater is used to heat the air discharged from the gas replenisher.

[0020] By adopting the above technical solution, the gas replenishment component injects heated drying gas into the drying chamber through the gas replenishment machine and the gas outlet pipe. This gas works in conjunction with the air extraction component to precisely control the vacuum level inside the drying chamber. At the same time, the injected hot gas helps to remove moisture from the surface of the material and maintain a uniform temperature inside the chamber, thereby optimizing the drying process.

[0021] In summary, this application includes the following beneficial technical effects: The drying chamber cooling system, particularly the active cooling loop comprised of the chiller, outlet pipe, return pipe, and the first plate heat exchanger, enables rapid forced cooling of the drying chamber after the drying process. This overcomes the reliance on natural cooling, shortens production downtime, and improves equipment utilization. The water supply system shares the first plate heat exchanger as the core heat exchanger with the drying chamber cooling system, allowing the same water system to achieve both heating and rapid cooling, simplifying the device structure. The vacuum pump assembly accelerates moisture evaporation by creating a low-pressure environment, the vacuum pump cooling assembly ensures the heat dissipation needs of the vacuum pump during continuous operation, and the air supply assembly precisely controls the drying environment. The coordinated operation of these components improves production efficiency while reducing the risk of degradation of active ingredients in medicinal herbs due to prolonged exposure to high temperatures. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall planar structure used in the embodiments of this application.

[0023] Figure 2 This is a schematic diagram of the planar structure of the air replenishment component in the embodiments of this application.

[0024] Figure 3 This is a schematic diagram of the planar structure of the water supply component in the embodiments of this application.

[0025] Figure 4 This is a planar structural diagram illustrating the cooling assembly of the drying oven in an embodiment of this application.

[0026] Figure 5 This is a planar structural diagram illustrating the air extraction assembly and the vacuum pump cooling assembly in the embodiments of this application.

[0027] Explanation of reference numerals in the attached drawings: 1. Drying oven; 11. Discharge plate; 111. Water supply pipe; 12. Jacket; 2. Drying oven cooling assembly; 21. Chiller; 22. Water outlet pipe; 221. Water outlet valve; 23. First plate heat exchanger; 24. Return water pipe; 241. Return water valve; 3. Vacuum extraction assembly; 31. Vacuum pump; 311. Roots pump; 312. Water ring pump; 32. First extraction pipe; 321. Extraction valve; 33. Condenser; 34. Buffer tank; 35. Second extraction pipe; 4. Vacuum pump cooling assembly; 41. Second plate heat exchanger; 42. Second water tank; 421. Drain pipe; 422. Water inlet pipe; 43. Cooling pipe; 5. 51. Air supply assembly; 52. Air supply machine; 53. Air outlet pipe; 54. First air supply pipe; 55.11. Pulse valve; 56. Heater; 57.22. Second air supply pipe; 58.21. Manual valve; 59. Air inlet pipe; 60. Water supply assembly; 61. First water tank; 62. Water supply pump; 62.21. Water supply pipe; 62.21. Water supply valve; 63. Water supply pipe; 64. Drain valve; 65.22. First pulse pump; 66.33. First branch; 67.34. Second branch; 68. Steam pipe; 69.41. Air outlet valve; 60.55. Water return pipe; 61. Water return valve; 62.52. Water inlet valve; 63.65. Second pulse pump; 64. Discharge pipe. Detailed Implementation

[0028] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0029] This application discloses a traditional Chinese medicine drying device with rapid cooling function, referring to... Figure 1 It includes a drying chamber 1, a drying chamber cooling assembly 2, an air extraction assembly 3, a vacuum pump cooling assembly 4, a gas replenishment assembly 5, and a water addition assembly 6. The water addition assembly 6 is used to deliver hot water into the drying chamber 1 to evaporate the sugar-containing Chinese medicine. The air extraction assembly 3 is used to extract the steam from the drying chamber 1. The gas replenishment assembly 5 is used to deliver heating gas to the drying chamber 1. The vacuum pump cooling assembly 4 and the water addition assembly 6 are combined to cool the vacuum pump 31. The drying chamber cooling assembly 2 is used to rapidly cool the drying chamber 1.

[0030] Reference Figure 2 The drying chamber 1 is fixedly connected with multiple material feeding plates 11 and a water supply pipe 111. The outer side of the drying chamber 1 is fixedly connected with a jacket 12. In this embodiment, the water supply pipe 111 is located on the same side of the multiple material feeding plates 11. Each material feeding plate 11 is fixedly connected to the water supply pipe 111, and each material feeding plate 11 is provided with a water storage chamber. Each water storage chamber is connected to the water supply pipe 111.

[0031] Reference Figure 1 and Figure 3The water supply assembly 6 includes a first water tank 61, a water supply pipe 63, a steam pipe 64, a return water pipe 65, and a discharge pipe 66. The drying chamber cooling assembly 2 includes a first plate heat exchanger 23. The first water tank 61 is located on one side of the drying chamber 1. The water supply pipe 63 is fixedly connected to the first water tank 61, and a drain valve 631 is fixedly connected to the water supply pipe 63. A first pulse pump 632 is fixedly connected to the water supply pipe 63 and is located behind the drain valve 631. The first plate heat exchanger 23 is fixedly connected to the water supply pipe 63 and is located behind the first pulse pump 632. A steam boiler (not shown in the figure) is provided on one side of the drying chamber 1. One end of the steam pipe 64 is fixedly connected to the steam boiler, and the other end of the steam pipe 64 returns to the steam boiler after passing through the first plate heat exchanger 23, forming a circulation. Steam pipe 64 heats the water in water supply pipe 63 via first plate heat exchanger 23. Steam outlet valve 641 is also fixedly connected to steam pipe 64. The end of water supply pipe 63 branches into a first branch 633 and a second branch 634. The end of the first branch 633 connects to water supply pipe 111, and the end of the second branch 634 connects to the lower end of jacket 12. First pulse pump 632 pumps water from first water tank 61 into drying chamber 1.

[0032] Reference Figures 1-3 The discharge pipe 66 is fixedly connected to the upper end of the jacket 12. A one-way valve (not shown in the figure) is fixedly connected inside the discharge pipe 66. The one-way valve is used to restrict the water flow direction to flow only from the drying chamber 1 to the first water tank 61, preventing reverse flow. The other end of the discharge pipe 66 is fixedly connected to the upper part of the first water tank 61. During system operation, when the water level in the jacket 12 rises to the set height, the excess water flows back to the first water tank 61 through the discharge pipe 66. Subsequently, the water collected in the first water tank 61 is pumped into the water supply pipe 63 by the first pulse pump 632 and flows through the first plate heat exchanger 23. Here, the first plate heat exchanger 23 uses steam delivered by the steam pipe 64 to heat the water flow, and then the heated water is transported back to the drying chamber 1. Thus, the water forms a closed circulation water circuit between the first water tank 61, the first pulse pump 632, the first plate heat exchanger 23, and the drying chamber 1, and is repeatedly heated in this process. The main purpose of this design is to: on the one hand, continuously and uniformly heat the interior of the drying chamber 1 by circulating hot water in the jacket 12; on the other hand, since the water entering the water storage chamber of each discharge plate 11 from the first branch 633 through the water supply pipe 111 is an independent water path that does not participate in the above circulation, the hot water circulating in the jacket 12 can also play an auxiliary heating or heat preservation role for the water in the discharge plate 11 and its internal water storage chamber, thereby improving the heat utilization efficiency of the entire system and ensuring that the Chinese medicinal materials are heated stably and uniformly during the drying process.

[0033] Reference Figure 3One end of the return water pipe 65 is fixedly connected to the junction of the first branch 633 and the second branch 634, and both the first branch 633 and the second branch 634 are connected to the return water pipe 65. A return water valve 651, a second pulse pump 653, and an inlet valve 652 are sequentially fixedly connected to the return water pipe 65 along the water flow direction. The end of the return water pipe 65 is fixedly connected to the first water tank 61. The second pulse pump 653 is used to pump water from the drying chamber 1 into the first water tank 61.

[0034] Reference Figure 3 A water supply pump 62 is installed on one side of the first water tank 61. A water supply pipe 621 is provided between the water supply pump 62 and the first water tank 61. One end of the water supply pipe 621 is fixedly connected to the water supply pump 62, and the other end of the water supply pipe 621 is fixedly connected to the first water tank 61. The water supply pump 62 is used to inject water from outside the system into the first water tank 61 through the water supply pipe 621. A water supply valve 6211 is fixedly connected to the water supply pipe 621.

[0035] Reference Figure 1 and Figure 3 When forced cooling of the drying chamber 1 is required, first close the drain valve 631 and the first pulse pump 632, then open the return water valve 651 and the inlet water valve 652, and start the second pulse pump 653 to drain the water in the drying chamber 1 into the first water tank 61. Subsequently, the drying chamber 1 is cooled by the drying chamber cooling assembly 2.

[0036] Reference Figure 4 The drying chamber cooling assembly 2 includes a chiller 21, an outlet pipe 22, and a return pipe 24. The chiller 21 is located on one side of the drying chamber 1. One end of the outlet pipe 22 is fixedly connected to the chiller 21, and an outlet valve 221 is fixedly connected to the outlet pipe 22. The end of the outlet pipe 22 is fixedly connected to the first plate heat exchanger 23. One end of the return pipe 24 is fixedly connected to the first plate heat exchanger 23, and a return valve 241 is fixedly connected to the return pipe 24. The other end of the return pipe 24 is fixedly connected to the chiller 21.

[0037] Reference Figures 3-4In this embodiment, the first plate heat exchanger 23 has a dual function: heating the water discharged from the first water tank 61 into the drying chamber 1, and cooling the water discharged from the first water tank 61 into the drying chamber 1. The specific operation is as follows: When it is necessary to heat the water discharged from the first water tank 61 into the drying chamber 1, the outlet valve 221 and the return valve 241 are closed, while the drain valve 631 is opened. At this time, the water in the first water tank 61 flows to the drying chamber 1 through the water supply pipe 63. During this process, the steam in the steam pipe 64 flows through the first plate heat exchanger 23, heating the water in the water supply pipe 63, thereby delivering the hot water to the drying chamber 1 to achieve the evaporation treatment of the Chinese medicinal materials. When it is necessary to cool the drying chamber 1, the vent valve 641 is closed, while the outlet valve 221 and the return valve 241 are opened. The chilled water generated by the chiller 21 flows through the outlet pipe 22 to the first plate heat exchanger 23, where it exchanges heat with the water in the water supply pipe 63 flowing through the first plate heat exchanger 23, thus cooling the water in the water supply pipe 63. After heat exchange, the chilled water flows back to the chiller 21 through the return pipe 24, thus forming an independent cooling medium circulation loop. The cooled water enters the drying chamber 1, absorbs heat from the chamber, and then flows back to the first water tank 61 through the discharge pipe 66, forming a cooling cycle. This process achieves rapid cooling of the drying chamber 1, shortens the production cycle, and ensures the stability of the active ingredients of the Chinese medicinal materials.

[0038] Reference Figure 1 and Figure 5A vacuum pump assembly 3 is provided on one side of the drying chamber 1. The vacuum pump assembly 3 includes a vacuum pump 31, a first vacuum pipe 32, a condenser 33, a buffer tank 34, and a second vacuum pipe 35. In this embodiment, the vacuum pump 31 is a Roots-water ring vacuum unit composed of a Roots pump 311 and a water ring pump 312, with the Roots pump 311 on top and the water ring pump 312 on the bottom. The vacuum pump 31 is located on one side of the drying chamber 1, and the condenser 33 and the buffer tank 34 are located on the same side as the vacuum pump 31. The condenser 33 is fixedly connected to the upper end of the buffer tank 34 and is also connected to the buffer tank 34. One end of the first vacuum pipe 32 is fixedly connected to the drying chamber 1 and is connected to the interior of the drying chamber 1. A vacuum valve 321 is fixedly connected to the first vacuum pipe 32, and the other end of the first vacuum pipe 32 is fixedly connected to the upper end of the condenser 33 and is connected to the condenser 33. One end of the second suction pipe 35 is fixedly connected to the upper end of the buffer tank 34, and the second suction pipe 35 communicates with the buffer tank 34. The other end of the second suction pipe 35 is connected to the Roots pump 311, and the second suction pipe 35 communicates with the Roots pump 311. The vacuum pump 31 extracts the high-temperature gas from the drying chamber 1 through the path formed by the first suction pipe 32, the condenser 33, the buffer tank 34, and the second suction pipe 35. The high-temperature gas first enters the condenser 33 and is cooled, where most of the water vapor condenses into liquid water. Subsequently, the gas-liquid mixture enters the buffer tank 34 for separation: the liquid water collects at the bottom of the tank, while the cooled gas is extracted from the top of the tank by the vacuum pump 31.

[0039] Reference Figures 1-2 A gas replenishment assembly 5 is also provided on one side of the drying chamber 1. The gas replenishment assembly 5 includes a gas replenisher 51 and an outlet pipe 52. The gas replenisher 51 is located on one side of the drying chamber 1. One end of the outlet pipe 52 is fixedly connected to the gas replenisher 51, and the other end of the outlet pipe 52 branches into a first gas replenishment pipe 521 and a second gas replenishment pipe 522. The ends of the first gas replenishment pipe 521 and the second gas replenishment pipe 522 are both fixedly connected to the input end of the inlet pipe 53. The output end of the inlet pipe 53 is fixedly connected to the drying chamber 1, and the inlet pipe 53 is also connected to the drying chamber 1. In this embodiment, the first gas replenishment pipe 521 can intermittently replenish gas to the drying chamber 1, and the second gas replenishment pipe 522 can continuously replenish gas to the drying chamber 1. Specifically, a pulse valve 5211 and a heater 5212 are fixedly connected to the first gas replenishment pipe 521. The heater 5212 is located behind the pulse valve 5211 and is used for gas heating. A manual valve 5221 is fixedly connected to the second air supply pipe 522.

[0040] Reference Figure 2 and Figure 5This application achieves effective optimization of the drying process through the coordinated operation of the extraction component 3 and the gas replenishment component 5. The extraction component 3 establishes and maintains a stable low-pressure environment by extracting gas from the drying chamber 1. Under this low-pressure environment, the boiling point of the material decreases accordingly, meaning that the moisture can obtain the energy required for vaporization and evaporate rapidly without the need for the high temperatures required by traditional drying processes, thus avoiding damage to the medicinal materials due to overheating. At the same time, the gas replenishment component 5 delivers preheated drying gas into the drying chamber 1, an operation with multiple positive effects. The continuously replenished hot gas can form a gentle airflow inside the chamber, helping to dissipate the saturated water vapor layer on the surface of the material, improving the efficiency of moisture removal, and promoting uniform heat distribution inside the chamber. By coordinating and controlling the extraction and replenishment rates, the system can precisely stabilize the vacuum level inside the drying chamber 1 within the preset process range.

[0041] Reference Figure 1 and Figure 5 A vacuum pump cooling assembly 4 is provided on one side of the vacuum pump 31. The vacuum pump cooling assembly 4 includes a second plate heat exchanger 41, a second water tank 42, and a cooling pipe 43. The second plate heat exchanger 41 is fixedly connected to the outlet water pipe 22. The cooling pipe 43 is used to assist the condenser 33. Specifically, one end of the cooling pipe 43 is fixedly connected to the outlet water pipe 22, and the other end of the cooling pipe 43 first enters from the lower end of the condenser 33, then exits from the upper end of the condenser 33, and then is fixedly connected to the return water pipe 24.

[0042] Reference Figure 5 A second water tank 42 is located on one side of the vacuum pump 31. A drain pipe 421 and an inlet pipe 422 are fixedly connected to the second water tank 42. The end of the drain pipe 421 passes through the second plate heat exchanger 41 and is fixedly connected to the water ring pump 312. The end of the inlet pipe 422 is also fixedly connected to the water ring pump 312. The drain pipe 421 is used to transfer water from the second water tank 42 to the vacuum pump 31, and the inlet pipe 422 is used to transfer water from the vacuum pump 31 to the second water tank 42. The second plate heat exchanger 41 is used to cool the water discharged from the second water tank 42.

[0043] The implementation principle of a traditional Chinese medicine drying device with rapid cooling function according to an embodiment of this application is as follows: During the drying stage, the water supply component 6 transports water from the first water tank 61 through the water supply pipe 63. When the water flows through the first plate heat exchanger 23, it is heated by steam provided by the steam pipe 64. The hot water enters the water storage chamber of the feeding plate 11 through the first branch 633 and enters the jacket 12 through the second branch 634, uniformly heating the traditional Chinese medicine in the drying chamber 1 and promoting sugar evaporation. The vacuum component 3 extracts the steam in the drying chamber 1 through the first vacuum pipe 32, condenser 33, buffer tank 34 and second vacuum pipe 35, maintaining a low-pressure environment inside the chamber, reducing the boiling point of water and improving evaporation efficiency. The gas supply component 5 supplies heating gas into the drying chamber 1 through the first gas supply pipe 521 and the second gas supply pipe 522, and works in conjunction with the vacuum component 3 to control the vacuum degree inside the chamber, ensuring a stable drying process.

[0044] When cooling is required after drying, the system switches to cooling mode. The drain valve 631 and the first pulse pump 632 are closed, the return water valve 651 and the inlet water valve 652 are opened, and the second pulse pump 653 is started to drain the water in the drying chamber 1 back to the first water tank 61. Then, the drain valve 631 and the first pulse pump 632 are opened again, and the drying chamber cooling assembly 2 is started. The chilled water generated by the chiller 21 flows through the outlet pipe 22 to the first plate heat exchanger 23, where it exchanges heat with the water in the water supply pipe 63. The water cooled by the first plate heat exchanger 23 enters the drying chamber 1 through the first branch 633 and the second branch 634, absorbs heat from the chamber, and then flows back to the first water tank 61 through the discharge pipe 66, forming an active cooling cycle. Simultaneously, the vacuum pump cooling assembly 4 provides auxiliary cooling to the condenser 33 and the vacuum pump 31 through the cooling pipe 43 and the second plate heat exchanger 41.

[0045] This application utilizes an active cooling mechanism in the drying oven cooling component 2 to replace the traditional natural cooling method, effectively shortening the cooling time, reducing the production cycle, and improving equipment utilization. Rapid cooling also helps reduce the risk of degradation of active ingredients in traditional Chinese medicine due to prolonged exposure to high temperatures, thereby ensuring the efficacy and safety of the medicine. The integrated design of each component optimizes the overall drying and cooling process, overcoming the slow cooling shortcomings of existing technologies.

[0046] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A traditional Chinese medicine drying device with rapid cooling function, characterized in that: It includes a drying chamber (1), a drying chamber cooling assembly (2) and a water supply assembly (6). The drying chamber cooling assembly (2) includes a chiller (21), a water outlet pipe (22), a water return pipe (24) and a first plate heat exchanger (23). The chiller (21) is located on one side of the drying box (1), the outlet pipe (22) is located on the chiller (21), the first plate heat exchanger (23) is located at the end of the outlet pipe (22), and the return pipe (24) is located between the first plate heat exchanger (23) and the chiller (21). The water supply assembly (6) includes a first water tank (61), a water supply pipe (63), and a discharge pipe (66). The first water tank (61) is located on one side of the drying chamber (1). The water supply pipe (63) is located between the first water tank (61) and the drying chamber (1). The water supply pipe (63) also passes through the first plate heat exchanger (23). The water supply pipe (63) is also equipped with a first pulse pump (632). The discharge pipe (66) is located between the drying box (1) and the first water tank (61).

2. The traditional Chinese medicine drying device with rapid cooling function according to claim 1, characterized in that: The water supply assembly (6) also includes a steam pipe (64). A steam boiler is provided on one side of the drying box (1). One end of the steam pipe (64) is set on the steam boiler, and the other end of the steam pipe (64) passes through the first plate heat exchanger (23) and is then set on the steam boiler. The outlet pipe (22) is equipped with an outlet valve (221), and the return pipe (24) is equipped with a return valve (241).

3. A traditional Chinese medicine drying device with rapid cooling function according to claim 2, characterized in that, The water supply assembly (6) also includes a return water pipe (65), which is located between the drying box (1) and the first water tank (61), and a second pulse pump (653) is provided on the return water pipe (65); The first pulse pump (632) is used to pump water from the first water tank (61) into the drying chamber (1), and the second pulse pump (653) is used to pump water from the drying chamber (1) into the first water tank (61).

4. A traditional Chinese medicine drying device with rapid cooling function according to claim 1, characterized in that: The drying chamber (1) is provided with an air extraction assembly (3) on one side. The air extraction assembly (3) includes a vacuum pump (31) and a first air extraction pipe (32). The first air extraction pipe (32) is disposed between the vacuum pump (31) and the drying chamber (1).

5. A traditional Chinese medicine drying device with rapid cooling function according to claim 4, characterized in that: The extraction assembly (3) further includes a second extraction pipe (35), a condenser (33) and a buffer tank (34). The condenser (33) is disposed on one side of the drying chamber (1), and the first extraction pipe (32) connects the drying chamber (1) to the condenser (33). The buffer tank (34) is disposed at the lower end of the condenser (33). The second suction pipe (35) connects the buffer tank (34) to the vacuum pump (31).

6. A traditional Chinese medicine drying device with rapid cooling function according to claim 5, characterized in that: A vacuum pump cooling assembly (4) is provided on one side of the vacuum pump (31). The vacuum pump cooling assembly (4) includes a second plate heat exchanger (41) and a second water tank (42). The second plate heat exchanger (41) is located on the water outlet pipe (22). The second water tank (42) is located on one side of the vacuum pump (31). A drain pipe (421) is provided on the second water tank (42). The end of the drain pipe (421) is located on the vacuum pump (31). The drain pipe (421) also passes through the second plate heat exchanger (41). The second water tank (42) is also provided with a water inlet pipe (422), and the end of the water inlet pipe (422) is also provided on the vacuum pump (31); The drain pipe (421) is used to transfer water from the second water tank (42) to the vacuum pump (31), and the inlet pipe (422) is used to transfer water from the vacuum pump (31) to the second water tank (42).

7. A traditional Chinese medicine drying device with rapid cooling function according to claim 6, characterized in that: The vacuum pump cooling assembly (4) also includes a cooling pipe (43), one end of which is connected to the outlet pipe (22), and the other end of which is connected to the return pipe (24) after passing through the condenser (33).

8. A traditional Chinese medicine drying device with rapid cooling function according to claim 1, characterized in that: A gas replenishment assembly (5) is also provided on one side of the drying chamber (1). The gas replenishment assembly (5) includes a gas replenisher (51) and an air outlet pipe (52). The gas replenisher (51) is located on one side of the drying chamber (1), and the air outlet pipe (52) is located between the gas replenisher (51) and the drying chamber (1). The air outlet pipe (52) is equipped with a pulse valve (5211) and a heater (5212), the heater (5212) being used to heat the air discharged from the air replenishment machine (51).

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