A short-path deep purification high-efficiency energy-saving distillation device

Abstract

The application discloses a kind of short-range deep purification high-efficiency energy-saving distillation device, it is related to distillation equipment technical field, including distillation mechanism, and the packing mechanism and locking mechanism are arranged on the distillation mechanism.The corrugated packing distributed on the packing tray can increase the contact area of gas-liquid two-phase by its special structure, improve the mass transfer efficiency, can realize the deep purification of material in shorter rectification path, shorten the distillation time, improve production efficiency, the position of installation support is provided by packing frame and mounting ring cooperation bottom support ring, so as to facilitate the packing tray is placed on bottom support ring and fixed, limiting ring is distributed on packing frame, and spring body is abutted at the bottom, the bottom of spring body is connected with compression plate by sliding sleeve ring, and at the bottom of compression plate one end is pressed by compression frame cooperation compression block and is pressed, so as to ensure that compression block is stably pressed on packing tray, so that packing tray keeps stable installation.

Description

Technical Field

[0001] This invention relates to the field of distillation equipment technology, specifically to a high-efficiency and energy-saving distillation device for short-range deep purification. Background Technology

[0002] In industries such as chemical, pharmaceutical, and food processing, distillation is one of the key technologies for separating and purifying substances. Short-path distillation, as a highly efficient separation method, is suitable for purifying high-boiling-point and heat-sensitive materials.

[0003] Existing distillation equipment often uses ordinary packing in the distillation column, resulting in low mass transfer efficiency. This makes it difficult to achieve deep purification in short-range conditions, often requiring an increase in the distillation column height or an extension of the distillation time. This not only increases equipment costs but also reduces production efficiency. To address these issues, a high-efficiency and energy-saving distillation device for short-range deep purification is proposed. Summary of the Invention

[0004] The purpose of this invention is to provide a high-efficiency and energy-saving distillation device for short-range deep purification, in order to solve the problem mentioned in the background art that the existing distillation columns mostly use ordinary packing materials, which have low mass transfer efficiency and make it difficult to achieve deep purification in short-range conditions. This often requires increasing the height of the distillation column or extending the distillation time, which not only increases equipment costs but also reduces production efficiency.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a high-efficiency and energy-saving distillation device for short-range deep purification, comprising a distillation mechanism, wherein the distillation mechanism is provided with a packing mechanism and a locking mechanism, the distillation mechanism includes a solvent tank, a first conveying pipe is fixedly connected to the bottom of the solvent tank, a conveying pump is fixedly connected to one end of the first conveying pipe, the output end of the conveying pump is connected to a short-range distiller through a pipe, a flexible connecting pipe is connected to the side of the short-range distiller, a third pipe is fixedly connected to one end of the flexible connecting pipe, a condenser is fixedly connected to one end of the third pipe, a cold trap is fixedly connected to the side of the condenser through a pipe, a second conveying pipe is fixedly connected to the side of the cold trap, a vacuum pump is fixedly connected to one end of the second conveying pipe, a vacuum oil pump is connected to the bottom of the vacuum pump, a top cover is provided on the top of the short-range distiller, a limit block is provided around the outer wall of the top cover, and a sealing ring is provided on the bottom outer wall of the top cover;

[0006] The packing mechanism includes a packing disc with several corrugated packings evenly distributed on its top and bottom. An installation ring is provided on the outer side of the packing disc, and multiple packing frames pass through the installation ring. A limiting ring is fitted on the outer wall of the packing frame, and a spring body is provided at the bottom of the limiting ring. A sliding collar is connected to the bottom of the spring body, and a pressure plate is connected to the bottom of the sliding collar. A pressure frame is connected to one end of the bottom of the pressure plate, and the bottom of the pressure frame is pressed against the upper surface of the packing disc.

[0007] Preferably, the locking mechanism includes a support ring, an outer extension ring is provided on the bottom outer side of the support ring, a plurality of side mounts are evenly distributed on the top of the outer extension ring in a clockwise direction, an elastic damping rod is installed on the side mount, a fastening member is rotatably installed on the top of the support ring, and one end of the elastic damping rod is connected to the fastening member.

[0008] Preferably, the outer wall of the elastic damping rod is provided with a spring member, and the two ends of the elastic damping rod are rotatably connected to rotating connecting seats, which are respectively installed on the top of the side mounting seat and on the outside of the fastening member.

[0009] Preferably, the outer side of the fastening member is threaded with a threaded collar, and the bottom end of the fastening member is rotatably connected to a rotating adjustment seat, which is installed on the support ring in a ring-shaped arrangement.

[0010] Preferably, a bottom support ring is fixedly installed on the inner side of the mounting ring, and guide strips are symmetrically fixedly installed on the bottom of the limiting ring. The guide strips are symmetrically distributed on the outer wall of the packing frame, and a pressing block is provided at the bottom end of the pressing frame. The pressing block is pressed against the upper surface of the packing disc.

[0011] Preferably, the distillation mechanism further includes a first frame, a second frame is fixedly installed at one end of the first frame, a third frame is fixedly installed on one side of the first frame, the solvent tank is disposed inside the second frame, the short-path distiller, condenser and cold trap are all disposed on the first frame, and the vacuum pump and vacuum oil pump are disposed on the third frame.

[0012] Preferably, the bottom of the short-path distillation apparatus is symmetrically and fixedly connected with a light component tank and a heavy component tank, with the heavy component tank located to the side of the light component tank.

[0013] Preferably, a right-angle hanger is fixedly connected to the outer side of the vacuum pump, and the right-angle hanger is fixedly connected to the top inner side of the third frame. A right-angle support is fixedly installed at the bottom of the vacuum oil pump, and the bottom of the right-angle support is fixedly connected to the bottom inner side of the third frame.

[0014] Preferably, a controller is fixedly installed on one side of the second frame, and a display screen and control buttons are provided on the side of the controller, with the control buttons distributed below the display screen.

[0015] Preferably, a plurality of side-mounted support feet are evenly distributed around the outer wall of the melting tank, the side-mounted support feet are fixedly installed on the top of the second frame, a sealed top cover is installed on the top of the melting tank, a first gate valve is provided at the bottom of the condenser, and a second gate valve is provided at the bottom of the vacuum pump.

[0016] Compared with the prior art, the beneficial effects of the present invention are: 1. In this invention, the packing rack and mounting ring, in conjunction with the bottom support ring, provide a support position for the packing disc, facilitating its placement and fixation on the bottom support ring. Limiting rings are distributed on the packing rack, with a spring body abutting at the bottom. The bottom of the spring body is connected to a pressure plate via a sliding collar. A pressure block, along with a pressure frame, presses the pressure plate onto the packing disc, ensuring its stable mounting. During disassembly, lifting the pressure plate separates the pressure block from the packing disc, facilitating quick disassembly and improving operational convenience. The corrugated packing distributed on the packing disc increases the contact area between the gas and liquid phases through its special structure, improving mass transfer efficiency. This enables deep purification of materials within a shorter distillation path, shortening distillation time and increasing production efficiency.

[0017] 2. In this invention, the support ring and the outer expansion ring provide installation support, facilitating the installation and distribution of the side mounting base and the rotating adjustment base. An elastic damping rod is provided on the side mounting base to provide lateral pushing force, which is further enhanced by a spring component to ensure stability. Rotary connecting seats at both ends of the spring component provide rotational functionality, thereby improving stability and flexibility. A fastening component is installed on the rotating adjustment base, allowing the elastic damping rod to push the fastening component onto the top cover for quick fixing. A threaded collar is threaded onto the outside of the fastening component, further securing it and effectively improving stability. It also facilitates quick disassembly for replacing the packing inside the short-path distiller, ensuring ease of operation.

[0018] 3. In this invention, a short-path distillation apparatus is used for the purification and separation of materials, which can efficiently achieve precise separation and purification of materials with different components. The condenser is used to form a condensation surface, providing a condensation site for steam and promoting its rapid liquefaction. The cold trap is used to block heavy components in the short-path distillation apparatus, preventing them from entering the vacuum pump and ensuring the purity of light components. The dissolving tank enters the short-path distillation apparatus through a conveying pump to complete the material conveying process. The vacuum pump is used to create a vacuum, enabling the short-path distillation apparatus to reach the gas pressure required for molecular distillation and creating a suitable low-pressure environment for the distillation process. Heavy component tanks and light component tanks are respectively connected to the bottom two sides of the short-path distillation apparatus. The heavy component tank is specifically used to collect heavy components, while the light component tank is used to collect light components, realizing the classified collection of different components. The second conveying pipe and the flexible connecting pipe facilitate the connection between the short-path distillation apparatus and the condenser. The flexible connecting pipe adopts a flexible telescopic structure, making the disassembly and removal of the top cover more convenient. The limiting block can limit the fastening parts during installation, ensuring the stability of the installation. The sealing ring can enhance the sealing performance, further improve the sealing effect of the device, and reduce the risk of leakage. Attached Figure Description

[0019] Figure 1 This is a perspective view of a high-efficiency and energy-saving distillation apparatus for short-range deep purification according to the present invention; Figure 2 This invention relates to a high-efficiency and energy-saving distillation apparatus for short-range deep purification. Figure 1 Enlarged structural diagram at point A in the middle; Figure 3 This invention relates to a high-efficiency and energy-saving distillation apparatus for short-range deep purification. Figure 1 Enlarged structural diagram at point B; Figure 4 This is a schematic diagram of another angle of the high-efficiency and energy-saving distillation device for short-range deep purification according to the present invention; Figure 5 This is a partial cross-sectional schematic diagram of a high-efficiency and energy-saving distillation device for short-range deep purification according to the present invention. Figure 6 This invention relates to a high-efficiency and energy-saving distillation apparatus for short-range deep purification. Figure 5 Enlarged structural diagram at point C; Figure 7 This invention relates to a high-efficiency and energy-saving distillation apparatus for short-range deep purification. Figure 5 Enlarged structural diagram at point D; Figure 8 This is a schematic diagram of the packing structure of a distillation column in a high-efficiency and energy-saving distillation apparatus for short-range deep purification according to the present invention. Figure 9 This invention relates to a high-efficiency and energy-saving distillation apparatus for short-range deep purification. Figure 8 Enlarged structural diagram at point E in the middle.

[0020] In the diagram: 1. Distillation mechanism; 101. First frame; 102. Second frame; 103. Third frame; 104. Dissolving tank; 105. Side-mounted support foot; 106. Sealed top cover; 107. First conveying pipe; 108. Conveying pump; 109. Short-path distiller; 1091. Top cover; 1092. Limiting block; 1093. Sealing ring; 110. Condenser; 111. Cold trap; 112. Second conveying pipe; 113. Vacuum pump; 114. Vacuum oil pump; 115. Right-angle hanger; 116. Right-angle support; 117. Light component tank; 118. Heavy component tank; 119. Controller; 120. Display screen; 121. Control button 1. 122. Third Pipeline; 123. Flexible Connector; 124. First Gate Valve; 125. Second Gate Valve; 2. Packing Mechanism; 201. Packing Frame; 202. Mounting Ring; 203. Bottom Support Ring; 204. Limiting Ring; 205. Spring Body; 206. Pressure Plate; 207. Pressure Frame; 208. Sliding Collar; 209. Guide Strip; 210. Pressure Block; 211. Packing Disc; 212. Corrugated Packing; 3. Locking Mechanism; 301. Support Ring; 302. Outer Ring; 303. Side Mounting Seat; 304. Elastic Damping Rod; 305. Spring Component; 306. Rotary Connecting Seat; 307. Rotary Adjusting Seat; 308. Fastening Component; 309. Threaded Collar. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Example 1: As Figures 1-9As shown, the present invention provides a technical solution: a high-efficiency and energy-saving distillation device for short-range deep purification, including a distillation mechanism 1, a packing mechanism 2 and a locking mechanism 3. The distillation mechanism 1 includes a dissolving tank 104, a first conveying pipe 107 fixedly connected to the bottom of the dissolving tank 104, a conveying pump 108 fixedly connected to one end of the first conveying pipe 107, and a short-range distiller 109 connected to the output end of the conveying pump 108 via a pipe. A flexible connecting pipe 123 is connected to the side of the short-range distiller 109, and a fixed connection is made to one end of the flexible connecting pipe 123. The third pipe 122 is fixedly connected to one end of the condenser 110. The side of the condenser 110 is fixedly connected to the cold trap 111 through a pipe. The side of the cold trap 111 is fixedly connected to the second conveying pipe 112. One end of the second conveying pipe 112 is fixedly connected to the vacuum pump 113. The bottom of the vacuum pump 113 is connected to the vacuum oil pump 114. The top of the short-path distiller 109 is provided with a top cover 1091. A limit block 1092 is provided around the outer wall of the top cover 1091. A sealing ring 1093 is provided on the bottom outer wall of the top cover 1091. The packing mechanism 2 includes a packing disc 211, on which several corrugated packings 212 are evenly distributed vertically. An installation ring 202 is provided on the outer side of the packing disc 211, and multiple packing supports 201 pass through the installation ring 202. A limiting ring 204 is fitted onto the outer wall of the packing support 201, and a spring body 205 is provided at the bottom of the limiting ring 204. A sliding collar 208 is connected to the bottom of the spring body 205, and a pressure plate 2 is connected to the bottom of the sliding collar 208. 06. A clamping frame 207 is connected to one end of the bottom of the clamping plate 206. The bottom of the clamping frame 207 is pressed against the upper surface of the packing disc 211. A bottom support ring 203 is fixedly installed on the inner side of the mounting ring 202. Guide strips 209 are symmetrically fixedly installed on the bottom of the limiting ring 204. The guide strips 209 are symmetrically distributed on the outer wall of the packing frame 201. A clamping block 210 is provided at the bottom of the clamping frame 207. The clamping block 210 is pressed against the upper surface of the packing disc 211.

[0023] In this embodiment, the short-path still 109 is used for the purification and separation of materials, enabling efficient and precise separation and purification of different components. The condenser 110 forms a condensation surface, providing a condensation site for the vapor and promoting its rapid liquefaction. The cold trap 111 blocks heavy components within the short-path still 109, preventing them from entering the vacuum pump 113 and ensuring the purity of the light components. The solvent container 104 enters the short-path still 109 via the transfer pump 108, completing the material transport process. The vacuum pump 113 is used to create a vacuum, ensuring that the interior of the short-path still 109 reaches the pressure required for molecular distillation, creating a suitable low-pressure environment for the distillation process. Heavy component tank 118 and light component tank 117 are connected to the bottom sides of the short-path still 109, respectively. The heavy component tank 118 is specifically for collecting heavy components, while the light component tank 117 is for collecting light components, achieving the classified collection of different components. The second conveying pipe 112 and the flexible connecting pipe 123 facilitate the connection between the short-path distiller 109 and the condenser 110. The flexible connecting pipe 123 adopts a flexible telescopic structure, making the disassembly of the top cover 1091 more convenient. The limiting block 1092 can limit the fastening part 308 during installation to ensure the stability of the installation. The sealing ring 1093 can enhance the sealing performance, further improve the sealing effect of the device, and reduce the risk of leakage.

[0024] The packing frame 201 and mounting ring 202, in conjunction with the bottom support ring 203, provide a support position for the packing disc 211, facilitating its placement and fixation on the bottom support ring 203. Limiting rings 204 are distributed on the packing frame 201, with a spring body 205 abutting at the bottom. The bottom of the spring body 205 is connected to a pressure plate 206 via a sliding collar 208. A pressure frame 207, along with a pressure block 210, presses the pressure plate 206 at one bottom end, ensuring stable pressing of the pressure block 210. The packing disc 211 is stably installed on the packing disc 211. When disassembling, the clamping plate 206 is lifted to separate the clamping block 210 from the packing disc 211, thus facilitating quick disassembly and improving the ease of operation. The corrugated packing 212 distributed on the packing disc 211 increases the contact area between the gas and liquid phases through its special structure, improving the mass transfer efficiency. It can achieve deep purification of materials in a shorter distillation path, shorten the distillation time, and improve production efficiency.

[0025] Example 2: As Figure 6As shown, the locking mechanism 3 includes a support ring 301. An outer extension ring 302 is provided on the outer side of the bottom of the support ring 301. Several side mounting seats 303 are evenly distributed on the top of the outer extension ring 302 in a clockwise direction. An elastic damping rod 304 is installed on the side mounting seat 303. A fastening member 308 is rotatably installed on the top of the support ring 301. One end of the elastic damping rod 304 is connected to the fastening member 308. A spring member 305 is provided on the outer wall of the elastic damping rod 304. Rotary connecting seats 306 are rotatably connected to both ends of the elastic damping rod 304. The rotary connecting seats 306 are respectively installed on the top of the side mounting seat 303 and the outer side of the fastening member 308. A threaded collar 309 is threaded onto the outer side of the fastening member 308. A rotary adjusting seat 307 is rotatably connected to the bottom end of the fastening member 308. The rotary adjusting seats 307 are installed on the support ring 301 in a ring shape.

[0026] In this embodiment, the support ring 301 and the outer expansion ring 302 provide installation support, facilitating the installation and distribution of the side mounting base 303 and the rotating adjustment base 307. An elastic damping rod 304 is provided on the side mounting base 303 to provide lateral pushing force, which is further enhanced by the spring 305 to ensure stability. Rotary connecting seats 306 are provided at both ends of the spring 305 to provide rotational functionality, thereby improving stability and flexibility. A fastening element 308 is installed on the rotating adjustment base 307, allowing the elastic damping rod 304 to push the fastening element 308 onto the top cover 1091 for quick fixing. A threaded collar 309 is threaded onto the outside of the fastening element 308, further securing it and improving stability. This also facilitates quick disassembly for replacing the packing inside the short-path distiller 109, ensuring ease of operation.

[0027] Example 3: As Figures 1-5 and Figure 8As shown, the distillation mechanism 1 also includes a first frame 101, a second frame 102 fixedly mounted at one end of the first frame 101, a third frame 103 fixedly mounted on one side of the first frame 101, a solvent tank 104 disposed inside the second frame 102, a short-path still 109, a condenser 110, and a cold trap 111 all disposed on the first frame 101, a vacuum pump 113 and a vacuum oil pump 114 disposed on the third frame 103, a light component tank 117 and a heavy component tank 118 symmetrically fixedly connected to the bottom of the short-path still 109, the heavy component tank 118 disposed to the side of the light component tank 117, and a right-angle hanger 115 fixedly connected to the outer side of the vacuum pump 113, the right-angle hanger 115 being fixedly connected to the third frame 102. On the inner top of the third frame 103, a right-angle support 116 is fixedly installed at the bottom of the vacuum oil pump 114. The bottom of the right-angle support 116 is fixedly connected to the inner bottom of the third frame 103. A controller 119 is fixedly installed on one side of the second frame 102. A display screen 120 and control buttons 121 are provided on the side of the controller 119. The control buttons 121 are distributed below the display screen 120. Several side-mounted support feet 105 are evenly distributed around the outer wall of the melting tank 104. The side-mounted support feet 105 are fixedly installed on the top of the second frame 102. A sealing top cover 106 is installed on the top of the melting tank 104. A first gate valve 124 is provided at the bottom of the condenser 110. A second gate valve 125 is provided at the bottom of the vacuum pump 113.

[0028] In this embodiment, the first frame 101, the second frame 102, and the third frame 103 provide installation support for multiple different devices, improving installation convenience and facilitating the coordinated installation of multiple structures. The light component tank 117 and the heavy component tank 118 are used to separate and store the light and heavy phases, respectively, achieving the orderly collection of different components. The right-angle support 116 provides stable support for the vacuum oil pump 114, ensuring its operational stability. The controller 119, together with the display screen 120 and control buttons 121, facilitates control operations, effectively improving the ease of equipment operation. The side-mounted support feet 105 provide stable support for the melting tank 104, thereby ensuring the stability of the overall structure. The sealed top cover 106 is located on the top of the melting tank 104, which helps to provide stable support for related components. The first gate valve 124 and the second gate valve 125 facilitate the control of opening and closing for flow regulation, and can flexibly adapt to different operating needs.

[0029] In this invention, the high-efficiency and energy-saving distillation device for short-path deep purification is used in the following ways: First, the short-path still 109 is used for the purification and separation of materials, which can efficiently achieve precise separation and purification of different components. The condenser 110 is used to form a condensation surface, providing a condensation site for the steam and promoting its rapid liquefaction. The cold trap 111 is used to block heavy components in the short-path still 109, preventing them from entering the vacuum pump 113 and ensuring the purity of the light components. The solvent tank 104 enters the short-path still 109 through the transfer pump 108, completing the material transfer process. The vacuum pump 113 is used to create a vacuum, enabling the short-path still 109 to reach the gas pressure required for molecular distillation, creating a suitable low-pressure environment for the distillation process. Heavy component tank 118 and light component tank 117 are respectively connected to the bottom two sides of the short-path still 109. The heavy component tank 118 is specifically used to collect heavy components, and the light component tank 117 is used to collect light components, realizing the classified collection of different components. The second conveying pipe 112 and the flexible connecting pipe 123 facilitate the connection between the short-path distiller 109 and the condenser 110. The flexible connecting pipe 123 adopts a flexible telescopic structure, making the disassembly of the top cover 1091 more convenient. The limiting block 1092 can limit the fastening part 308 during installation to ensure the stability of the installation. The sealing ring 1093 can enhance the sealing performance, further improve the sealing effect of the device, and reduce the risk of leakage.

[0030] The packing frame 201 and mounting ring 202, in conjunction with the bottom support ring 203, provide a support position for the packing disc 211, facilitating its placement and fixation on the bottom support ring 203. Limiting rings 204 are distributed on the packing frame 201, with a spring body 205 abutting at the bottom. The bottom of the spring body 205 is connected to a pressure plate 206 via a sliding collar 208. A pressure frame 207, along with a pressure block 210, presses the pressure plate 206 at one bottom end, ensuring stable pressing of the pressure block 210. The packing disc 211 is stably installed on the packing disc 211. When disassembling, the clamping plate 206 is lifted to separate the clamping block 210 from the packing disc 211, thus facilitating quick disassembly and improving the ease of operation. The corrugated packing 212 distributed on the packing disc 211 increases the contact area between the gas and liquid phases through its special structure, improving the mass transfer efficiency. It can achieve deep purification of materials in a shorter distillation path, shorten the distillation time, and improve production efficiency.

[0031] The support ring 301 and the outer extension ring 302 provide installation support, facilitating the installation and distribution of the side mounting base 303 and the rotating adjustment base 307. An elastic damping rod 304 is provided on the side mounting base 303 to provide lateral pushing force, which is further enhanced by the spring 305 to ensure stability. Rotary connecting seats 306 are provided at both ends of the spring 305 to provide rotational functionality, thereby improving stability and flexibility. A fastening element 308 is installed on the rotating adjustment base 307, allowing the elastic damping rod 304 to push the fastening element 308 onto the top cover 1091 for quick fixing. A threaded collar 309 is threaded onto the outside of the fastening element 308 for further locking and securing, effectively improving stability and facilitating quick disassembly for replacing the packing inside the short-path distiller 109, ensuring ease of operation.

[0032] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A high-efficiency and energy-saving distillation device for short-range deep purification, comprising a distillation mechanism (1), characterized in that: The distillation mechanism (1) is provided with a packing mechanism (2) and a locking mechanism (3). The distillation mechanism (1) includes a dissolving tank (104). A first conveying pipe (107) is fixedly connected to the bottom of the dissolving tank (104). A conveying pump (108) is fixedly connected to one end of the first conveying pipe (107). The output end of the conveying pump (108) is connected to a short-path still (109) through a pipe. A flexible connecting pipe (123) is connected to the side of the short-path still (109). A third pipe (122) is fixedly connected to one end of the flexible connecting pipe (123). One end of the third pipe (122) is fixedly connected to the third pipe (122). A condenser (110) is fixedly connected to the side of the condenser (110) via a pipe. A second conveying pipe (112) is fixedly connected to the side of the cold trap (111). A vacuum pump (113) is fixedly connected to one end of the second conveying pipe (112). A vacuum oil pump (114) is connected to the bottom of the vacuum pump (113). A top cover (1091) is provided on the top of the short-path distiller (109). A limit block (1092) is provided around the outer wall of the top cover (1091). A sealing ring (1093) is provided on the bottom outer wall of the top cover (1091). The packing mechanism (2) includes a packing disc (211), on which several corrugated packings (212) are evenly distributed. An installation ring (202) is provided on the outer side of the packing disc (211), and multiple packing frames (201) pass through the installation ring (202). A limiting ring (204) is sleeved on the outer wall of the packing frame (201). A spring body (205) is provided at the bottom of the limiting ring (204). A sliding collar (208) is connected to the bottom of the spring body (205). A pressure plate (206) is connected to the bottom of the sliding collar (208). A pressure frame (207) is connected to one end of the bottom of the pressure plate (206). The bottom of the pressure frame (207) is pressed against the upper surface of the packing disc (211).

2. The high-efficiency and energy-saving distillation apparatus for short-range deep purification according to claim 1, characterized in that: The locking mechanism (3) includes a support ring (301), an outer extension ring (302) is provided on the bottom outer side of the support ring (301), and a number of side mounts (303) are evenly distributed on the top of the outer extension ring (302) in a clockwise direction. An elastic damping rod (304) is installed on the side mount (303), and a fastening member (308) is rotatably installed on the top of the support ring (301). One end of the elastic damping rod (304) is connected to the fastening member (308).

3. The high-efficiency and energy-saving distillation apparatus for short-range deep purification according to claim 2, characterized in that: The outer wall of the elastic damping rod (304) is provided with a spring (305), and the two ends of the elastic damping rod (304) are rotatably connected to a rotating connecting seat (306). The rotating connecting seat (306) is respectively installed on the top of the side mounting seat (303) and the outside of the fastening member (308).

4. The high-efficiency and energy-saving distillation apparatus for short-range deep purification according to claim 3, characterized in that: The outer side of the fastening member (308) is threaded with a threaded collar (309), and the bottom end of the fastening member (308) is rotatably connected to a rotating adjustment seat (307). The rotating adjustment seat (307) is installed on the support ring (301) in a ring-shaped arrangement.

5. The high-efficiency and energy-saving distillation apparatus for short-range deep purification according to claim 1, characterized in that: A bottom support ring (203) is fixedly installed on the inner side of the mounting ring (202), and guide strips (209) are symmetrically fixedly installed on the bottom of the limiting ring (204). The guide strips (209) are symmetrically distributed on the outer wall of the packing frame (201). A pressing block (210) is provided at the bottom end of the pressing frame (207), and the pressing block (210) is pressed against the upper surface of the packing disc (211).

6. The high-efficiency and energy-saving distillation apparatus for short-range deep purification according to claim 1, characterized in that: The distillation mechanism (1) further includes a first frame (101), a second frame (102) is fixedly installed at one end of the first frame (101), a third frame (103) is fixedly installed on one side of the first frame (101), the solvent tank (104) is located inside the second frame (102), the short-path distiller (109), the condenser (110) and the cold trap (111) are all located on the first frame (101), and the vacuum pump (113) and the vacuum oil pump (114) are located on the third frame (103).

7. The high-efficiency and energy-saving distillation apparatus for short-range deep purification according to claim 6, characterized in that: The bottom of the short-path distiller (109) is symmetrically and fixedly connected to a light component tank (117) and a heavy component tank (118), with the heavy component tank (118) located to the side of the light component tank (117).

8. The high-efficiency and energy-saving distillation apparatus for short-range deep purification according to claim 7, characterized in that: A right-angle hanger (115) is fixedly connected to the outside of the vacuum pump (113), and the right-angle hanger (115) is fixedly connected to the top of the inner side of the third frame (103). A right-angle support (116) is fixedly installed at the bottom of the vacuum oil pump (114), and the bottom of the right-angle support (116) is fixedly connected to the bottom of the inner side of the third frame (103).

9. The high-efficiency and energy-saving distillation apparatus for short-range deep purification according to claim 8, characterized in that: A controller (119) is fixedly installed on one side of the second frame (102). The controller (119) has a display screen (120) and control buttons (121) on its side. The control buttons (121) are located below the display screen (120).

10. The high-efficiency and energy-saving distillation apparatus for short-range deep purification according to claim 9, characterized in that: The outer wall of the melting tank (104) is evenly distributed with several side-mounted support feet (105). The side-mounted support feet (105) are fixedly installed on the top of the second frame (102). The top of the melting tank (104) is equipped with a sealing top cover (106). The bottom of the condenser (110) is provided with a first gate valve (124). The bottom of the vacuum pump (113) is provided with a second gate valve (125).

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