Circulating molecular distiller
By using a circulating liquid flow design and circulating condensation in the condensation pipeline, the low efficiency and complex structure of existing distillation equipment when processing high-boiling-point and heat-sensitive liquids are solved, achieving efficient liquid purification and equipment simplification, and reducing maintenance costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-21
- Publication Date
- 2026-04-03
AI Technical Summary
Existing distillation equipment is inefficient, complex in structure, and costly when processing high-boiling-point, heat-sensitive liquids and liquids containing complex impurities. Furthermore, the formation of solid phases can damage the equipment, making it difficult to maximize economic benefits.
It adopts a liquid flow circulation design, and through the circulation condensation of heating device and condensation pipe, it uses unheated liquid to condense heated steam to achieve multiple distillation. It also prevents liquid overflow through the principle of communicating vessels, which simplifies the structure and improves efficiency.
It solves the problems of solid phase formation and prolonged heating, improves distillation efficiency, simplifies equipment structure, reduces maintenance costs, and achieves efficient liquid purification.
Smart Images
Figure CN224071195U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to an evaporation device for organic materials, and more particularly to a circulating molecular distillation apparatus. Background Technology
[0002] Distillation is a physical process used to separate and purify liquid mixtures or separate liquids from solids. It involves vaporizing a substance by heating under specific pressure conditions, followed by condensation back into a liquid state upon cooling. This process relies on the difference in boiling points between the different components, causing the more volatile component to evaporate first and then recrystallize in a condenser, achieving separation. However, solid byproducts may be generated during distillation. The accumulation of these solids can damage distillation equipment, especially in delicate scientific instruments. Removing these solids is both difficult and dangerous, and improper operation can lead to decreased instrument accuracy or even damage. In industry, distillation purification is a key step in increasing the value of raw materials. However, for liquids with high boiling points, heat sensitivity, high impurity content, and low economic value, existing distillation technologies face challenges of inefficiency and poor cost-effectiveness. The processing of these liquids often requires complex equipment and long operating times, and frequent maintenance and repairs further increase costs.
[0003] Current distillation equipment design has limitations; it is typically complex in structure, inefficient in operation, and has long processing cycles, while also incurring issues related to solid phase formation and energy consumption. When processing temperature-sensitive liquids containing complex impurities, these devices have short operating cycles but long maintenance cycles, resulting in high overall processing costs and hindering the maximization of economic benefits. Therefore, improving distillation technology to enhance its efficiency and economy has become an urgent problem to be solved in the distillation industry. Summary of the Invention
[0004] Therefore, this utility model was made in view of the above problems. This utility model improves upon the heating method and uses a circulating distillation process to solve the problems of solid phase generation, low efficiency, and complex structure during distillation. This utility model achieves the above objectives through the following technical solutions.
[0005] A circulating molecular distillation apparatus includes: a feed tank, a support, a base plate, a delivery pipe, a condenser, a heating device, and a distillation outlet pipe.
[0006] The feed tank is a rectangular box used to hold the feed liquid to be distilled and to circulate the feed liquid. The pump is installed in the feed tank to provide power for the circulation of the feed liquid.
[0007] The bracket is located at the bottom left of the liquid tank to support the entire liquid tank. The base plate is located at the lower end of the bracket, and the lower end of the bracket is located on the left side of the base plate. The base plate also plays a role in stabilizing and supporting other devices. The base plate is cuboid, and two grooves are provided in the middle and right side of the upper surface to facilitate supporting the entire device.
[0008] The conveying pipe includes an inlet pipe and an outlet pipe. One end of the inlet pipe is located in a liquid tank and connected to a pump. The pump draws the liquid from the liquid tank into the inlet pipe for circulation. The inlet pipe has an arc-shaped front end and a V-shaped middle section. The V-shape allows the liquefied cooling vapor to collect along the middle section, where the liquid acts as a refrigerant. The tail end of the inlet pipe connects to the front end of the outlet pipe. The outlet pipe has a V-shaped middle section to facilitate the collection and discharge of liquefied vapor. The tail end of the tube enters the liquid tank; the condenser tube is V-shaped, and the tube body is a hollow cylindrical tube with semi-circular ends. The feed pipe and the discharge pipe are wrapped by the condenser tube. An opening is provided at the lower middle part of the condenser tube, and a row of upper steam ports is provided at the lower ends of the V-shape on both sides. As the heated liquid produces target steam, the steam enters the condenser tube from the upper steam ports. The gaseous target steam encounters the low temperature feed pipe and discharge pipe and liquefies from gas to liquid. The liquid gathers along the V-shape towards the middle.
[0009] The heating device includes: a heating tube, a heating wire, a lower steam port, and a reflux pipe. The heating tube is bent with two bends at the top. An opening is provided at the bottom of the right bend of the heating tube to facilitate the outflow of the distilled liquid. The feed liquid enters the heating tube directly through the outlet pipe. Because the liquid level in the feed tank is lower than the bends at the top of the heating tube, the liquid entering the heating tube will not touch the top of the heating tube. The heating wire is installed in all the bends and vertical channels of the heating tube to heat the feed liquid for distillation. A lower steam port, equal in number and size to the upper steam port opening, is provided at the bends at the top of the heating tube. Furthermore, the heating tube and the condenser tube are tightly fitted together, and the upper steam port and the lower steam port are tightly fitted to prevent steam and liquid from overflowing. The steam generated by the liquid at the top bend enters the condenser tube through the lower steam port and the upper steam port. In the condenser tube, the high-temperature steam liquefies into liquid when it encounters the low-temperature feed pipe and the discharge pipe, and then gathers in the middle. The front end of the return pipe is funnel-shaped, and the middle part is bent into a horizontal straight pipe. The front end is connected to the tail end of the heating tube, and the end returns to the liquid tank. After the liquid is heated and evaporated twice, it enters the return pipe through the tail end of the heating tube and finally returns to the liquid tank for circulation.
[0010] The upper end of the distillation outlet pipe is connected to the middle of the V-shaped part of the condenser pipe, and is vertically installed and passes through the bottom bend on the right side of the heating pipe. The condensed liquid flows out from the condenser pipe through the distillation outlet pipe.
[0011] The beneficial effects of this utility model are as follows:
[0012] 1. This utility model uses a pipeline circulation system to condense the target molecular gas generated by heating using unheated liquid as condensate, and achieves maximum efficiency purification and distillation of the liquid through multiple cycles, thus solving the problem of solid phase formation caused by prolonged static heating during distillation.
[0013] 2. The heating pipe of this utility model adopts the principle of communicating vessels. A heating tube is set in the entire heating pipe to heat the liquid inside the pipe. A steam port is set at the bend at the upper end of the communicating vessel. Since the liquid level in the container is lower than the height of the steam port, the liquid will not enter the condenser through the steam port. This design solves the problems of complex structure and low distillation efficiency.
[0014] 3. This utility model uses unheated liquid to condense steam, while the steam preheats the liquid, thus solving the problems of excessively long distillation time and long working cycle. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0016] Figure 2 This is a schematic diagram of the overall structure of the condenser tube of this utility model.
[0017] Figure 3 This is a schematic diagram of the top bend of the heating tube of this utility model.
[0018] Figure 4 This is a schematic diagram of the heating wire of this utility model.
[0019] Figure 5 This is a schematic diagram of the bottom structure of the condenser tube of this utility model.
[0020] Figure 6 This is a schematic diagram of the flow direction of the liquid material according to this utility model.
[0021] The attached diagram lists the components represented by each number as follows:
[0022] 1. Feed tank; 11. Pump; 2. Support; 3. Base plate; 4. Conveying pipe; 41. Feed pipe; 42. Discharge pipe; 5. Condenser; 51. Upper steam port; 6. Heating device; 61. Heating tube; 62. Heating wire; 63. Lower steam port; 64. Reflux pipe; 7. Distillation outlet pipe. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] like Figure 1-6 As shown, a circulating molecular distillation apparatus includes: a feed tank 1, a support 2, a base plate 3, a delivery pipe 4, a condenser 5, a heating device 6, and a distillation outlet pipe 7.
[0025] The feed tank 1 is a rectangular box used to hold the feed liquid to be distilled and to circulate the feed liquid. The pump 11 is installed in the feed tank 1 to provide power for the circulation of the feed liquid.
[0026] The bracket 2 is located on the bottom left side of the liquid tank 1 to support the entire liquid tank 1. The base plate 3 is located at the lower end of the bracket 2, and the lower end of the bracket 2 is located on the left side of the base plate 3. The base plate 3 also plays a role in stabilizing and supporting other devices. The base plate 3 is cuboid, and two grooves are provided in the middle and right side of the upper surface to facilitate supporting the entire device.
[0027] The conveying pipe 4 includes an inlet pipe 41 and an outlet pipe 42. One end of the inlet pipe 41 is located in the liquid tank 1 and connected to the pump 11. The pump 11 pumps the liquid from the liquid tank 1 into the inlet pipe 41 for circulation. The front end of the inlet pipe 41 is curved, and the middle part is V-shaped. The V-shape allows the cooled vapor to liquefy and collect along the middle. The liquid acts as a refrigerant in the inlet pipe 41. The tail end of the inlet pipe 41 is connected to the front end of the outlet pipe 42. The middle part of the outlet pipe 42 is V-shaped to facilitate the collection of liquefied vapor. The tail end of the discharge pipe 42 enters the liquid tank 1; the condenser pipe 5 is V-shaped, and the pipe body is a hollow cylindrical pipe with semi-circular ends. The inlet pipe 41 and the outlet pipe 42 are wrapped by the condenser pipe 5. An opening is provided at the lower middle part of the condenser pipe 5, and a row of upper steam ports 51 are provided at the lower ends of the V-shape on both sides. As the heated liquid produces target steam, the steam enters the condenser pipe 5 from the upper steam ports 51. The gaseous target steam encounters the low temperature inlet pipe 41 and outlet pipe 42 and liquefies from gas to liquid. The liquid gathers in the middle along the V-shape.
[0028] The heating device 6 includes: a heating tube 61, a heating wire 62, a lower steam port 63, and a return pipe 64.
[0029] The heating tube 61 is bent, with two bends at the top. A hole is provided at the bottom of the bend on the right side of the heating tube 61 to facilitate the outflow of the distilled liquid. The feed liquid enters the heating tube 61 directly through the outlet pipe 42. Because the liquid level in the feed tank 1 is lower than the bends at the top of the heating tube 61, the liquid entering the heating tube 61 will not touch the top of the heating tube 61. The heating wire 62 is installed in all the bends and vertical channels of the heating tube 61 to heat the feed liquid for distillation. The bends at the top of the heating tube 61 have an equal number of lower steam ports 63 of the same size as the upper steam port 51. The upper wall of the bends of the heating tube 61 is flush with the cold air supply. The lower wall of the condenser tube 5 is tightly fitted, and the upper steam port 51 and the lower steam port 63 are tightly fitted to prevent steam and liquid from overflowing. The steam generated by the liquid at the top bend enters the condenser tube 5 through the lower steam port 63 and the upper steam port 51. In the condenser tube 5, the high-temperature steam liquefies into liquid when it encounters the low-temperature feed pipe 41 and the discharge pipe 42, and then gathers in the middle. The front end of the return pipe 64 is funnel-shaped, and the middle part is bent into a horizontal straight pipe. The front end is connected to the tail end of the heating pipe 61, and the end returns to the liquid tank 1. After the liquid is heated and evaporated twice, it enters the return pipe 64 through the tail end of the heating pipe 61 and finally returns to the liquid tank 1 for circulation.
[0030] The upper end of the distillation outlet pipe 7 is connected to the middle of the V-shaped part of the condenser pipe 5. It is vertically installed and passes through the bottom bend on the right side of the heating pipe 61. The condensed liquid flows out from the condenser pipe 5 through the distillation outlet pipe 7.
[0031] The working principle of this utility model:
[0032] First, the liquid feed is pumped from the liquid feed tank 1 into the feed pipe 41 by the pump 11, and circulated. The front end of the feed pipe 41 is curved, and the middle part is V-shaped. The V-shape allows the liquefied cooling vapor to collect along the middle. The liquid feed acts as a refrigerant in the feed pipe 41. The tail end of the feed pipe 41 is connected to the front end of the discharge pipe 42. The middle part of the discharge pipe 42 is V-shaped to facilitate the collection of liquefied vapor. The tail end of the discharge pipe 42 enters the liquid feed tank 1. The liquid feed then enters the heating tube 61 and is heated... Heating wire 62 heats the heating tube 61, generating steam at the two bends at the top. The steam enters the condenser tube 5 through the lower steam port 63 and the upper steam port 51. In the condenser tube 5, the high-temperature steam liquefies upon contact with the low-temperature feed pipe 41 and discharge pipe 42, forming a liquid. The liquid flows downward along the outer wall of the feed pipe 41 and discharge pipe 42 in the condenser tube 5 and converges towards the center, eventually flowing out through the distillation outlet pipe 7. The liquid undergoes two evaporations in the heating tube 61 and then enters the reflux pipe 64 to return to the liquid tank 1 for circulation.
Claims
1. A circulating molecular still comprising: The utility model relates to a distillation device, which comprises a liquid tank (1), a support (2), a bottom plate (3), a conveying pipe (4), a condensing pipe (5), a heating device (6) and a distillation outlet pipe (7).
2. A circulating molecular still according to claim 1, characterized in that: The bottom plate (3) is a cuboid, and two grooves are arranged in the middle of the upper surface and the right side of the upper surface.
3. A circulating molecular still according to claim 1, characterized in that: The upper end wall of the bending part of the heating pipe (61) is closely attached to the lower wall of the condensing pipe (5), and the upper steam port (51) is closely matched with the lower steam port (63).
4. A circulating molecular still according to claim 1, characterized in that: The front end of the reflux pipe (64) is funnel-shaped, and the middle part of the reflux pipe (64) is a horizontal straight pipe with a bending part. The bottom plate (3) is a cuboid, and two grooves are arranged in the middle of the upper surface and the right side of the upper surface. The upper end wall of the bending part of the heating pipe (61) is closely attached to the lower wall of the condensing pipe (5), and the upper steam port (51) is closely matched with the lower steam port (63). The front end of the reflux pipe (64) is funnel-shaped, and the middle part of the reflux pipe (64) is a horizontal straight pipe with a bending part.