Distillation instrument

Abstract

The utility model discloses a distillation instrument which comprises a rack, a heating bowl is mounted at the top of the rack, a flask is arranged at the top of the heating bowl, a receiving bottle is arranged at the bottom of the rack, a condensation pipe is communicated with the top of the receiving bottle, the top of the condensation pipe is communicated with the flask, a controller is arranged in the rack, and the controller is connected with the heating bowl. A distillate metering assembly is arranged on one side, close to the receiving bottle, of the rack. The distillation temperature and the weight of distillate are sensed in real time and compared with values such as the distillation temperature and the distillation speed which are input in advance, the heating power of the heating bowl is automatically adjusted, automatic adjustment and control over the distillation temperature and the distillation speed are achieved, the automation rate of the distillation instrument is increased, manual intervention is not needed in the distillation process, and the production efficiency is improved. The stability of the distillation temperature and the distillation speed in the distillation process is improved, so that the distillation efficiency and the sample purity are improved.

Description

Technical Field

[0001] This utility model relates to the field of distillation apparatus technology, and in particular to a distillation apparatus. Background Technology

[0002] In the development of analytical chemistry, sample pretreatment techniques have been largely neglected. However, with societal advancements, analytical chemistry faces increasingly complex sample properties, large sample volumes, and numerous interfering factors, making sample pretreatment techniques increasingly crucial. Distillation is a classic and common sample pretreatment technique, utilizing differences in boiling points to purify substances and separate mixtures. Currently, the integrated distillation apparatuses used in the domestic market, while achieving some integration based on the existing framework, cannot achieve constant-temperature distillation and cannot effectively control the distillation rate. Manual adjustment and control are required during distillation, leading to temperature fluctuations and unstable distillation rates, which in turn affect distillation efficiency and sample purity.

[0003] The technical problem this invention aims to solve is to design a distillation apparatus that automatically controls distillation temperature and speed to improve distillation efficiency and sample purity. Utility Model Content

[0004] This invention provides a distillation apparatus that enables automatic adjustment and control of distillation temperature and distillation rate, thereby improving the automation rate of the distillation apparatus, eliminating the need for manual intervention during the distillation process, improving the stability of distillation temperature and distillation rate during the distillation process, and thus improving distillation efficiency and sample purity.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] This utility model provides a distillation apparatus, including a frame, a heating bowl mounted on the top of the frame, a flask mounted on the top of the heating bowl, a receiving flask mounted at the bottom of the frame, a condenser tube connected to the top of the receiving flask, and the top of the condenser tube connected to the flask. A controller is installed inside the frame, and a distillate metering assembly is located on the side of the frame near the receiving flask. The distillate metering assembly includes a weighing sensor, a tray, an endpoint valve, and a top valve. Multiple weighing sensors are installed on the bottom front of the frame, with the sensing end of each weighing sensor fixedly connected to a tray located at the bottom of the receiving flask. Multiple endpoint valves are located on the side of the condenser tube and the receiving flask close to each other. Multiple top valves are located on the top of the flask away from the condenser tube. The weighing sensors, endpoint valves, and top valves are all electrically connected to the controller.

[0007] Preferably, the frame is internally equipped with a circulating cooling assembly; the circulating cooling assembly includes a water tank, an evaporator, a compressor, a filter drying tube, and a condenser; the water tank is installed on one side of the frame, the evaporator is installed inside the water tank, the compressor is installed on one side of the water tank, the output end of the evaporator is connected to the compressor, the output end of the compressor is connected to the condenser, the output end of the condenser is connected to the filter drying tube, the end of the filter drying tube away from the condenser is connected to the evaporator, and the compressor is electrically connected to the controller.

[0008] Preferably, a preheating and cooling assembly is provided on the outside of the heating bowl of the frame; the preheating and cooling assembly includes a support base, a semiconductor heating element, and a semiconductor cooling element; the support base is located below the flask, and the support base is fixedly connected to the frame and the heating bowl respectively; a semiconductor heating element is provided on one side of the support base, and a semiconductor cooling element is provided on the side of the semiconductor heating element on the support base; both the semiconductor heating element and the semiconductor cooling element are electrically connected to the controller.

[0009] Preferably, the outer wall of the water tank is provided with a water circulation assembly; the water circulation assembly includes a cold water inlet, a cold water outlet and a water pump; the cold water inlet is connected to the top of the water tank, the cold water outlet is connected to the bottom of the water tank, the cold water outlet is connected to the water pump, the output end of the cold water inlet and the water pump are both connected to the condenser pipe, and the water pump is electrically connected to the controller.

[0010] Preferably, a circulation control component is provided on the top of the water tank; the circulation control component includes a water temperature sensor and a float level gauge; both the water temperature sensor and the float level gauge are installed on the top of the water tank, and both are electrically connected to the controller.

[0011] Preferably, the outer wall of the water tank is provided with an injection and drainage assembly; the injection and drainage assembly includes an injection port and a drainage port; the injection port is connected to the top of the water tank, and the drainage port is connected to the bottom of the water tank.

[0012] Preferably, a waste liquid recovery assembly is provided inside the frame; the waste liquid recovery assembly includes a waste liquid box, a switching valve, a vacuum pump, a check valve, and a drain port; the waste liquid box is installed inside the frame, the waste liquid box is connected to a top valve, the top of the waste liquid box is connected to a switching valve, one end of the switching valve is connected to a vacuum pump, the other end of the switching valve is connected to a check valve, the bottom of the waste liquid box is connected to a drain port, and the switching valve, vacuum pump, and check valve are all electrically connected to a controller.

[0013] Preferably, a water level gauge is provided at the bottom of one side of the frame, and the water level gauge is connected to the water tank.

[0014] Preferably, the front of the frame is provided with a distillation progress display screen, which is electrically connected to the controller.

[0015] Preferably, the bottom of the frame is provided with supporting feet.

[0016] The technical solution of this utility model has the following technical effects compared with the prior art: by sensing the distillation temperature and the weight of the distillate in real time and comparing them with the pre-input values ​​such as distillation temperature and distillation rate, the controller automatically adjusts the heating power of the heating bowl, automatically adjusts and controls the distillation temperature and distillation rate, improves the automation rate of the distillation apparatus, eliminates the need for manual intervention during the distillation process, improves the stability of the distillation temperature and distillation rate during the distillation process, and thus improves the distillation efficiency and sample purity. Attached Figure Description

[0017] Figure 1 This is a side view of the structure of the distillation apparatus of this utility model;

[0018] Figure 2 This is a schematic diagram of the appearance of the distillation apparatus of this utility model;

[0019] Figure 3 This is a rear view of the distillation apparatus of this utility model;

[0020] Figure 4 Another rear view of the distillation apparatus of this utility model;

[0021] Figure 5 This is a schematic diagram of the heating bowl, support base, and semiconductor heating element in the distillation apparatus of this utility model.

[0022] Figure 6 This is a schematic diagram of the water tank, compressor, and condenser in the distillation apparatus of this utility model;

[0023] Figure 7 This is a schematic diagram of the water tank, evaporator, and water pump in the distillation apparatus of this utility model.

[0024] Reference numerals: 1. Frame; 2. Heating bowl; 3. Flask; 4. Condenser; 5. Receiving bottle; 6. Controller; 7. Distillate metering assembly; 71. Weighing sensor; 72. Tray; 73. End point valve; 74. Top valve; 8. Circulating cooling assembly; 81. Water tank; 82. Evaporator; 83. Compressor; 84. Filter drying tube; 85. Condenser; 9. Preheating and cooling assembly; 91. Support base; 92. Semiconductor heating element; 93. Semiconductor cooling element; 10. Water circulation assembly; 101, cold water inlet; 102, cold water outlet; 103, water pump; 11, circulation control assembly; 111, water temperature sensor; 112, float level gauge; 12, water inlet and outlet assembly; 121, water inlet; 122, water outlet; 13, waste liquid recovery assembly; 131, waste liquid box; 132, switching valve; 133, vacuum pump; 134, check valve; 135, drain port; 14, water level gauge; 15, distillation progress display screen; 16, support feet. Detailed Implementation

[0025] like Figures 1-7 As shown, this utility model provides a distillation apparatus, including a frame 1, a heating bowl 2 mounted on the top of the frame 1, a flask 3 mounted on the top of the heating bowl 2, a receiving bottle 5 mounted on the bottom of the frame 1, a condenser 4 connected to the top of the receiving bottle 5, and the top of the condenser 4 connected to the flask 3. A controller 6 is installed inside the frame 1, and a distillate metering assembly 7 is installed on the side of the frame 1 near the receiving bottle 5. The distillate metering assembly 7 includes a weighing sensor 71, a tray 72, an endpoint valve 73, and a top valve 74. Multiple weighing sensors 71 are installed on the bottom front of the frame 1, and the sensing end of the weighing sensor 71 is fixedly connected to the tray 72, which is located at the bottom of the receiving bottle 5. Multiple endpoint valves 73 are distributed on the side where the condenser 4 and the receiving bottle 5 are close to each other. Multiple top valves 74 are distributed on the top of the flask 3 away from the condenser 4. The weighing sensor 71, the endpoint valve 73, and the top valve 74 are all electrically connected to the controller 6.

[0026] In the specific implementation process, it is worth noting that the frame 1 is the outer shell structure of the distillation apparatus. The interior of the flask 3 is used to store the liquid mixture to be distilled and is placed on top of the heating bowl 2. The controller 6 is used to control the various electrical components of the distillation apparatus to ensure the overall stability and efficiency of the distillation apparatus. The heating bowl 2 uses far-infrared ceramic electric heating to heat the flask 3. The power of the heating bowl 2 can be adjusted by the controller 6. Furthermore, a PT100 is used as a temperature sensor to monitor the temperature of the sample solution or vapor in real time, and the sensing signal is transmitted to the controller 6 in real time. The controller 6 then automatically controls the heating power of the heating bowl 2 based on the real-time temperature, in case of system heat transfer lag. In this case, precise control of the distillation temperature is achieved to prevent overheating. After the distilled gas is condensed by the condenser 4, the distillate flows into the receiving bottle 5 for collection. The tray 72 is fixed to the sensing end of the weighing sensor 71, and the receiving bottle 5 is placed on top of the tray 72. After the distillate enters the receiving bottle 5, the sensing signal of the weighing sensor 71 changes and is transmitted to the controller 6 in real time. The controller 6 automatically calculates the real-time distillation rate by pre-inputting relevant parameters such as distillation temperature, liquid density (g / ml), distillate weight (g), distillation rate (ml / min), and distillation time (min) based on the real-time weight of the distillate and the relevant parameters. When the distillate reaches the preset weight, the controller 6 automatically closes the endpoint valve 73 and opens the top valve 74, stopping the flow of distillate into the receiving bottle 5 and connecting the flask 3 to the waste collection box. Through the coordination between the frame 1, heating bowl 2, flask 3, condenser 4, receiving bottle 5, controller 6, weighing sensor 71, tray 72, endpoint valve 73, and top valve 74, and by pre-inputting relevant parameters such as distillation temperature (°C), liquid density (g / ml), distillate weight (g), distillation rate (ml / min), and distillation time (min) on the control panel, and by real-time monitoring of the sample solution or vapor temperature, the controller 6 compares the real-time temperature with the preset distillation temperature. The heating power of heating bowl 2 is automatically controlled to achieve automatic adjustment and control of distillation temperature. The real-time weight of the distillate is measured by weighing sensor 71. The controller 6 combines the real-time weight of the distillate and relevant parameters to automatically calculate the real-time distillation rate value and compare it with the pre-input distillation rate value. The heating power of heating bowl 2 is automatically adjusted to achieve automatic adjustment and control of distillation rate, thereby improving the automation rate of the distillation apparatus. No manual intervention is required during the distillation process, which improves the stability of distillation temperature and distillation rate, thereby improving distillation efficiency and sample purity. The specific models of controller 6, weighing sensor 71, endpoint valve 73 and top valve 74 are not limited, as long as they meet the usage requirements.

[0027] It is understandable that the distillation temperature and distillation rate set through the control panel are range values, that is, within a certain temperature range or a certain distillation rate, it is considered to be constant temperature and constant rate.

[0028] In one feasible embodiment, a circulating cooling assembly 8 is provided inside the frame 1; the circulating cooling assembly 8 includes a water tank 81, an evaporator 82, a compressor 83, a filter drying tube 84, and a condenser 85; the water tank 81 is installed on one side inside the frame 1, the evaporator 82 is provided inside the water tank 81, the compressor 83 is provided on one side of the water tank 81, the output end of the evaporator 82 is connected to the compressor 83, the output end of the compressor 83 is connected to the condenser 85, the output end of the condenser 85 is connected to the filter drying tube 84, the end of the filter drying tube 84 away from the condenser 85 is connected to the evaporator 82, and the compressor 83 is electrically connected to the controller 6.

[0029] In the specific implementation process, it is worth noting that the water tank 81 stores cooling circulating water, which is supplied to the condenser 4 through a circulation pump. Through the cooperation of the evaporator 82, compressor 83, filter drying tube 84 and condenser 85, a closed cooling circulation system is formed. The heat in the cooling circulating water in the water tank 81 is conducted to the coolant in the evaporator 82. The coolant circulates between the evaporator 82 and the condenser 85, which can effectively absorb and transfer the heat in the cooling circulating water in the water tank 81, thereby achieving a cooling effect on the cooling circulating water, effectively reducing the temperature of the cooling circulating water, thereby improving the condensation efficiency in the distillation process and reducing water waste. The specific model of the compressor 83 is not limited, as long as it meets the usage requirements.

[0030] In one feasible embodiment, a preheating and cooling assembly 9 is provided on the outside of the heating bowl 2 in the frame 1; the preheating and cooling assembly 9 includes a support base 91, a semiconductor heating element 92, and a semiconductor cooling element 93; the support base 91 is located below the flask 3, and the support base 91 is fixedly connected to the frame 1 and the heating bowl 2 respectively; a semiconductor heating element 92 is provided on one side of the support base 91, and a semiconductor cooling element 93 is provided on the side of the support base 91 next to the semiconductor heating element 92; both the semiconductor heating element 92 and the semiconductor cooling element 93 are electrically connected to the controller 6.

[0031] In the specific implementation process, it is worth noting that the support base 91 supports the heating bowl 2, and the semiconductor heating element 92 and semiconductor cooling element 93 are installed on the side of the support base 91, both of which are equipped with fans. The semiconductor heating element 92 provides cool air to the heating bowl 2 cavity after the experiment, helping the flask 3 to quickly return to room temperature, effectively reducing the time interval between two experiments and significantly improving work efficiency. The semiconductor cooling element 93 provides hot air to the heating bowl 2 cavity after power-on, preventing short circuit tripping failures caused by moisture absorption when the heating bowl 2 is not used for a long time. At the same time, it preheats the sample heating and distillation process that is about to begin, shortening the overall experimental time and improving experimental efficiency. The specific models of the semiconductor heating element 92 and semiconductor cooling element 93 are not limited, as long as they meet the usage requirements.

[0032] It is understandable that both the semiconductor heating element 92 and the semiconductor cooling element 93 adopt semiconductor thermoelectric cooling technology. By using direct current to pass through a thermocouple composed of two semiconductor materials, heat is absorbed at one end and released at the other end of the thermocouple, which has the dual functions of cooling and heating. The polarity of the direct current can also be controlled to make the two elements cool or release heat at the same time, further improving the cooling or preheating efficiency of the heating bowl 2.

[0033] In one feasible embodiment, a water circulation assembly 10 is provided on the outer wall of the water tank 81; the water circulation assembly 10 includes a cold water inlet 101, a cold water outlet 102 and a water pump 103; the cold water inlet 101 is connected to the top of the water tank 81, the cold water outlet 102 is connected to the bottom of the water tank 81, the cold water outlet 102 is connected to the water pump 103, the output ends of the cold water inlet 101 and the water pump 103 are both connected to the condenser pipe 4, and the water pump 103 is electrically connected to the controller 6.

[0034] In the specific implementation process, it is worth noting that the cooling circulating water in the water tank 81 is transported from the cold water outlet 102 to the condenser tube 4 through the water pump 103, and then flows back into the water tank 81 through the cold water inlet 101, realizing the circulation of cooling water. During the circulation process, the cooling water can effectively reduce the temperature of the condenser tube 4, improve the distillation efficiency, and reduce the consumption of water resources. The specific model of the water pump 103 is not limited, as long as it meets the usage requirements.

[0035] In one feasible embodiment, a circulation control assembly 11 is provided on the top of the water tank 81; the circulation control assembly 11 includes a water temperature sensor 111 and a float level gauge 112; both the water temperature sensor 111 and the float level gauge 112 are mounted on the top of the water tank 81 and are electrically connected to the controller 6.

[0036] In the specific implementation process, it is worth noting that the water temperature sensor 111 is used to sense the temperature of the cooling circulating water and transmit the sensing signal to the controller 6. When a certain temperature is reached, the controller 6 automatically controls the compressor 83 to circulate the coolant between the evaporator 82 and the condenser 85, thereby reducing the temperature of the cooling circulating water. The float level gauge 112 is used to sense the water level of the cooling circulating water in the water tank 81 and transmit the sensing signal to the controller 6 in real time to monitor the water level in the water tank 81 so that when the water level is insufficient, the staff can be reminded to replenish the cooling circulating water. The specific models of the water temperature sensor 111 and the float level gauge 112 are not limited, as long as they meet the usage requirements.

[0037] In one feasible embodiment, the outer wall of the water tank 81 is provided with an injection / drainage assembly 12; the injection / drainage assembly 12 includes an injection port 121 and a drain port 122; the injection port 121 is connected to the top of the water tank 81, and the drain port 122 is connected to the bottom of the water tank 81.

[0038] In the specific implementation process, it is worth noting that both the water inlet 121 and the drain outlet 122 can be equipped with solenoid valves controlled by the controller 6 and connected to the water supply pipe and the drain pipe to improve the convenience of water filling and draining of the water tank 81.

[0039] In one feasible embodiment, a waste liquid recovery assembly 13 is provided inside the rack 1; the waste liquid recovery assembly 13 includes a waste liquid box 131, a switching valve 132, a vacuum pump 133, a one-way valve 134, and a drain port 135; the waste liquid box 131 is installed inside the rack 1, the waste liquid box 131 is connected to the top valve 74, the top of the waste liquid box 131 is connected to the switching valve 132, one end of the switching valve 132 is connected to the vacuum pump 133, the other end of the switching valve 132 is connected to the one-way valve 134, the bottom of the waste liquid box 131 is connected to the drain port 135, and the switching valve 132, the vacuum pump 133, and the one-way valve 134 are all electrically connected to the controller 6.

[0040] In the specific implementation process, it is worth noting that by precisely controlling the top valve 74, switching valve 132, vacuum pump 133, and the sealing valve installed at the drain port 135, after the distillation operation is completed, the receiving bottle 5 containing clear water is placed below the condenser tube 4, the top valve 74 is opened, and the vacuum pump 133 creates negative pressure in the waste liquid box 131, drawing the clear water in the receiving bottle 5 into the flask 3. The splashed pure water or water vapor in the flask 3 is drawn into the waste liquid box 131 for collection and then discharged centrally through the drain port 135. Simultaneously, the controller... 6. Based on the feedback signal from the pressure sensor, the working state of the vacuum pump 133 is automatically adjusted to maintain the pressure in the waste liquid box 131 within a safe range, avoiding poor waste liquid discharge due to insufficient pressure. Backflow cleaning of the pipeline can be achieved without disassembling the pipeline, thereby avoiding the influence of residue from the previous sample on the distillation results of the next sample, and making full preparations for the accurate distillation operation of the next sample. The specific models of the switching valve 132, vacuum pump 133 and one-way valve 134 are not limited, as long as they meet the usage requirements.

[0041] In one feasible embodiment, a water level gauge 14 is provided at the bottom of one side of the frame 1, and the water level gauge 14 is connected to the water tank 81.

[0042] In the specific implementation process, it is worth noting that the water level gauge 14 is used to intuitively display the water level in the water tank 81, so that the staff can quickly understand the water level in the water tank 81.

[0043] In one feasible embodiment, a distillation progress display screen 15 is provided on the front of the rack 1, and the distillation progress display screen 15 is electrically connected to the controller 6.

[0044] In the specific implementation process, it is worth noting that the controller 6 calculates the distillation progress based on the real-time weight of the distillate measured by the weighing sensor 71 and the preset weight of the distillate, and displays it in real time through the distillation progress display screen 15, so that the staff can keep track of the distillation progress. The specific model of the distillation progress display screen 15 is not limited, as long as it meets the usage requirements.

[0045] In one feasible embodiment, the bottom of the frame 1 is provided with supporting feet 16.

[0046] In the specific implementation process, it is worth noting that the support foot 16 is used to support the distillation apparatus, and by rotating the support foot 16, the distillation apparatus can be leveled to ensure that the distillation apparatus can remain stable in different working environments.

[0047] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A distillation apparatus, comprising a frame (1), characterized in that: A heating bowl (2) is installed on the top of the frame (1), a flask (3) is installed on the top of the heating bowl (2), a receiving bottle (5) is installed at the bottom of the frame (1), a condenser (4) is connected to the top of the receiving bottle (5), the top of the condenser (4) is connected to the flask (3), a controller (6) is installed inside the frame (1), and a distillate metering component (7) is installed on the side of the frame (1) near the receiving bottle (5). The distillate metering assembly (7) includes a weighing sensor (71), a tray (72), an end valve (73), and a top valve (74). Multiple weighing sensors (71) are provided and installed on the bottom front of the frame (1). The sensing end of the weighing sensor (71) is fixedly connected to a tray (72). The tray (72) is located at the bottom of the receiving bottle (5). Multiple endpoint valves (73) are provided and distributed on the side where the condenser (4) and the receiving bottle (5) are close to each other. Multiple top valves (74) are provided and distributed on the top of the flask (3) away from the condenser (4). The weighing sensor (71), endpoint valve (73) and top valve (74) are all electrically connected to the controller (6).

2. The distillation apparatus according to claim 1, characterized in that: The rack (1) is equipped with a circulating cooling assembly (8); The circulating cooling assembly (8) includes a water tank (81), an evaporator (82), a compressor (83), a filter drying tube (84), and a condenser (85). The water tank (81) is installed inside one side of the frame (1). An evaporator (82) is installed inside the water tank (81). A compressor (83) is installed on one side of the water tank (81). The output end of the evaporator (82) is connected to the compressor (83). The output end of the compressor (83) is connected to the condenser (85). The output end of the condenser (85) is connected to the filter drying tube (84). The end of the filter drying tube (84) away from the condenser (85) is connected to the evaporator (82). The compressor (83) is electrically connected to the controller (6).

3. The distillation apparatus according to claim 1, characterized in that: The frame (1) is provided with a preheating and cooling assembly (9) on the outside of the heating bowl (2); The preheating and cooling assembly (9) includes a support base (91), a semiconductor heating element (92), and a semiconductor cooling element (93). The support base (91) is located below the flask (3). The support base (91) is fixedly connected to the frame (1) and the heating bowl (2) respectively. A semiconductor heating element (92) is provided on one side of the support base (91). A semiconductor cooling element (93) is provided on one side of the support base (91) located on the semiconductor heating element (92). Both the semiconductor heating element (92) and the semiconductor cooling element (93) are electrically connected to the controller (6).

4. The distillation apparatus according to claim 2, characterized in that: The outer wall of the water tank (81) is provided with a water circulation component (10); The water circulation component (10) includes a cold water inlet (101), a cold water outlet (102), and a water pump (103). The cold water inlet (101) is connected to the top of the water tank (81), the cold water outlet (102) is connected to the bottom of the water tank (81), the cold water outlet (102) is connected to a water pump (103), the output ends of the cold water inlet (101) and the water pump (103) are both connected to the condenser pipe (4), and the water pump (103) is electrically connected to the controller (6).

5. The distillation apparatus according to claim 2, characterized in that: A circulation control component (11) is provided on the top of the water tank (81). The circulation control component (11) includes a water temperature sensor (111) and a float level gauge (112). The water temperature sensor (111) and the float level gauge (112) are both installed on the top of the water tank (81), and the water temperature sensor (111) and the float level gauge (112) are both electrically connected to the controller (6).

6. The distillation apparatus according to claim 2, characterized in that: The outer wall of the water tank (81) is provided with a water inlet and outlet assembly (12); The water inlet and outlet assembly (12) includes a water inlet (121) and a water outlet (122). The water inlet (121) is connected to the top of the water tank (81), and the drain outlet (122) is connected to the bottom of the water tank (81).

7. The distillation apparatus according to claim 1, characterized in that: The frame (1) is equipped with a waste liquid recovery component (13). The waste liquid recovery assembly (13) includes a waste liquid box (131), a switching valve (132), a vacuum pump (133), a one-way valve (134), and a drain port (135). The waste liquid box (131) is installed inside the frame (1). The waste liquid box (131) is connected to the top valve (74). The top of the waste liquid box (131) is connected to the switching valve (132). One end of the switching valve (132) is connected to the vacuum pump (133). The other end of the switching valve (132) is connected to the check valve (134). The bottom of the waste liquid box (131) is connected to the drain port (135). The switching valve (132), vacuum pump (133) and check valve (134) are all electrically connected to the controller (6).

8. The distillation apparatus according to claim 2, characterized in that: A water level gauge (14) is provided on the bottom side of one side of the frame (1), and the water level gauge (14) is connected to the water tank (81).

9. The distillation apparatus according to claim 1, characterized in that: The front of the frame (1) is provided with a distillation progress display screen (15), which is electrically connected to the controller (6).

10. The distillation apparatus according to claim 1, characterized in that: The bottom of the frame (1) is provided with supporting feet (16).

Images