A distillation device for acetic ester production
By adopting a double distillation tank and heat exchanger structure in the distillation unit for acetate production, the efficient separation of acetate from impurities and waste heat recovery are achieved, solving the problem of energy waste in existing equipment and improving production efficiency and economy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANTONG SYNASIA NEW MATERIAL CO LTD
- Filing Date
- 2025-04-28
- Publication Date
- 2026-07-24
AI Technical Summary
Existing distillation units for acetate production are relatively inefficient in their energy utilization, and waste heat is not effectively recovered, resulting in energy waste and increased production costs.
The system employs a double distillation tank structure, combined with a condensate pipe and an output pump to achieve secondary distillation separation. It also recovers the waste heat from the distillation process through a heat exchanger and uses cooling water for heat exchange to reduce energy consumption.
It improves the separation efficiency and purity of acetate, reduces energy consumption in the production process, and increases energy utilization.
Smart Images

Figure CN224540985U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of distillation apparatus, specifically a distillation apparatus for the production of acetate. Background Technology
[0002] Acetic esters are a class of organic compounds formed by the esterification reaction of acetic acid and alcohol. Common examples include ethyl acetate and butyl acetate. In the field of fine chemicals, acetic esters are widely used as important organic solvents and chemical intermediates in industries such as coatings, inks, and adhesives.
[0003] Distillation is a crucial separation and purification step in the production of acetate esters, and the performance of the equipment directly affects product quality and corporate economic benefits. However, current distillation equipment used in acetate ester production employs relatively inefficient energy utilization methods, and a large amount of waste heat generated during distillation is not effectively recovered, resulting in energy waste and increased production costs. Therefore, we propose a distillation equipment for acetate ester production to solve the above problems. Utility Model Content
[0004] The purpose of this invention is to provide a distillation apparatus for the production of acetate, so as to solve the problems mentioned in the background art and overcome its technical defects.
[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a distillation apparatus for acetate production, including a base, two distillation components connected to the upper surface of the base, each of the distillation components including two distillation tanks connected to the base, and a reuse component connected to the upper surface of the base.
[0006] As a further improvement of this utility model: each of the distillation jars has three supporting legs connected to its outer surface, each supporting leg has a mounting foot connected to its bottom surface, and the bottom surface of each mounting foot is connected to the upper surface of the base.
[0007] As a further embodiment of this utility model: a feed pipe is connected to the left side of one of the distillation tanks, a discharge pipe is connected to the bottom of both distillation tanks, a first condensate pipe is connected to the upper surface of one of the distillation tanks, and a second condensate pipe is connected to the upper surface of the other distillation tank.
[0008] As a further embodiment of this utility model: an output pump is connected to the left side of another distillation tank, the output end of the first condensate pipe is connected to the output pump through a conduit, and the output end of the output pump is connected to the distillation tank through a conduit.
[0009] As a further embodiment of this utility model: the reuse component includes a water tank connected to the upper surface of the base, and the upper surface of the water tank is bolted to a cover plate.
[0010] As a further improvement of this utility model: the upper surface of the cover plate is connected to a water inlet connecting sleeve, and the back of the water tank is connected to an integrated control panel.
[0011] As a further embodiment of this utility model: a water pump is connected to the back of the water tank via a conduit, and an adapter sleeve is connected to the output end of the water pump. A heat exchanger is connected to the inner bottom wall of the water tank. A transmission pipe is connected to the upper surface of both distillation tanks. An adapter pipe is connected to the end of each of the two transmission pipes away from the distillation tanks. The end of each adapter pipe away from the transmission pipe is connected to the heat exchanger.
[0012] As a further improvement of this utility model: the output end of the heat exchanger is connected to an exhaust pipe, which passes through the water tank and extends to the outside of the water tank.
[0013] Compared with the prior art, the beneficial effects of this utility model include: by setting up two distillation tanks to form a secondary distillation separation structure, the raw material enters the first distillation tank through the feed pipe and is heated and vaporized. The steam is then transported to the other distillation tank by the first condensate pipe and the output pump for secondary distillation. The second condensate pipe is used to enhance condensation, which improves the separation efficiency of acetate and impurities and effectively improves the purity of the product. The high-temperature steam or liquid waste heat generated during the distillation process is introduced into the heat exchanger in the water tank through the transmission pipe and the transfer pipe to exchange heat with the cooling water entering the water tank through the inlet connection sleeve. The recovered heat can be used for preheating raw materials and other processes, which reduces energy consumption in the production process and improves energy utilization. Attached Figure Description
[0014] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts. Wherein:
[0015] Figure 1 The schematic diagram shows a three-dimensional structural diagram of a distillation apparatus for acetate production according to one embodiment of the present invention;
[0016] Figure 2 The schematic diagram shows a rear perspective view of a distillation apparatus for acetate production according to one embodiment of the present invention.
[0017] Figure 3 The schematic diagram shows a top-view perspective of a distillation apparatus for acetate production according to one embodiment of the present invention.
[0018] Figure 4 The schematic diagram shows a three-dimensional structural diagram of a heat exchanger in a distillation apparatus for acetate production according to one embodiment of the present invention;
[0019] Numbered in the diagram: 1. Base; 2. Distillation assembly; 201. Distillation tank; 202. Feed pipe; 203. First condensate pipe; 204. Output pump; 205. Second condensate pipe; 206. Support leg; 207. Discharge pipe; 208. Mounting foot; 3. Reuse assembly; 301. Water tank; 302. Cover plate; 303. Water inlet connection sleeve; 304. Water pump; 305. Adapter sleeve; 306. Heat exchanger; 307. Transfer pipe; 308. Adapter pipe; 309. Exhaust pipe; 4. Integrated control panel. Detailed Implementation
[0020] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.
[0021] According to one embodiment of the present invention, in conjunction with the appendix Figures 1 to 4 As shown.
[0022] A distillation apparatus for acetate production includes a base 1. Two distillation components 2 are connected to the upper surface of the base 1. Each distillation component 2 includes two distillation tanks 201 connected to the base 1. A reuse component 3 is connected to the upper surface of the base 1. The high-temperature steam or liquid waste heat generated during the distillation process of the two distillation tanks 201 enters the heat exchanger 306 in the water tank 301 through the transmission pipe 307 and the transfer pipe 308. Then, water enters the water tank 301 through the water inlet connection sleeve 303. The water exchanges heat with the distillation waste heat in the heat exchanger 306, and its temperature rises after absorbing heat. The waste heat is carried away by the cooling water, realizing heat recovery. The cooling water after absorbing heat can be transported to other links that require preheating or heating according to actual needs, reducing energy consumption in the production process and improving energy utilization.
[0023] In this embodiment, each distillation tank 201 has three support legs 206 connected to its outer surface. Each support leg 206 has a mounting foot 208 connected to its bottom surface. The bottom surface of each mounting foot 208 is connected to the upper surface of the base 1. The support legs 206 provide support for the distillation tank 201. One distillation tank 201 has a feed pipe 202 connected to its left side. The bottom surfaces of two distillation tanks 201 are connected to discharge pipes 207. One distillation tank 201 has a first condensate pipe 203 connected to its upper surface, and the other distillation tank 201 has a second condensate pipe 205 connected to its upper surface. The discharge pipe 207 improves the discharge efficiency of the equipment. The left side of another distillation tank 201 is connected to an output pump 204. The output end of the first condensate pipe 203 is connected to the output pump 204 through a conduit. The output end of the output pump 204 is connected to the distillation tank 201 through a conduit. The output pump 204 can transport the liquid after the first distillation to another distillation tank 201. The reuse component 3 includes a water tank 301 connected to the upper surface of the base 1. The upper surface of the water tank 301 is connected to a cover plate 302 by bolts. The cover plate 302 can close the water tank 301.
[0024] The upper surface of the cover plate 302 is connected to a water inlet sleeve 303. The back of the water tank 301 is connected to an integrated control panel 4, which facilitates operation of the equipment by the staff. The back of the water tank 301 is connected to a water pump 304 via a conduit. The output end of the water pump 304 is connected to an adapter sleeve 305. The inner bottom wall of the water tank 301 is connected to a heat exchanger 306. The upper surfaces of the two distillation tanks 201 are connected to a transmission pipe 307. The ends of the two transmission pipes 307 away from the distillation tanks 201 are connected to an adapter pipe 308. The end of each adapter pipe 308 away from the transmission pipe 307 is connected to the heat exchanger 306. The transmission pipes 307 can transfer hot air. The output end of the heat exchanger 306 is connected to an exhaust pipe 309. The exhaust pipe 309 passes through the water tank 301 and extends to the outside of the water tank 301. The exhaust pipe 309 can improve exhaust efficiency.
[0025] Working principle: In operation, the acetate mixture is fed into one of the distillation tanks 201 through the feed pipe 202. The raw material awaits heating and distillation within the tank. The feed pipe 202 can control the feed rate and quantity according to actual production needs. Then, the heating device inside the tank 201 is activated to heat the raw material. Upon heating, the volatile components in the acetate mixture vaporize to form steam. The steam rises to the top of the tank 201 and enters the output pump 204 through the first condensate pipe 203. The output pump 204 then transports the steam to the other distillation tank 201, achieving secondary distillation. After distillation and separation, the water is condensed again through the second condensate pipe 205 to ensure the distillation effect. The high-temperature steam or liquid waste heat generated by the two distillation tanks 201 during the distillation process enters the heat exchanger 306 in the water tank 301 through the transmission pipe 307 and the transfer pipe 308. Then, water enters the water tank 301 through the water inlet connection sleeve 303. The water exchanges heat with the distillation waste heat in the heat exchanger 306. After absorbing heat, the water temperature rises, while the waste heat is carried away by the cooling water, realizing heat recovery. The cooling water after absorbing heat can be transported to other links that need preheating or heating according to actual needs.
[0026] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.
Claims
1. A distillation apparatus for the production of acetate, characterized in that, Includes a base (1), the upper surface of which is connected to two distillation components (2), each of the distillation components (2) including two distillation tanks (201) connected to the base (1), and the upper surface of the base (1) is connected to a reuse component (3).
2. The distillation apparatus for acetate production according to claim 1, characterized in that, Each of the distillation tanks (201) has three support legs (206) connected to its outer surface. Each of the support legs (206) has a mounting foot (208) connected to its bottom surface. The bottom surface of each mounting foot (208) is connected to the upper surface of the base (1).
3. The distillation apparatus for acetate production according to claim 2, characterized in that, One of the distillation tanks (201) has a feed pipe (202) connected to its left side, and both of the distillation tanks (201) have a discharge pipe (207) connected to their bottom surfaces. One of the distillation tanks (201) has a first condensate pipe (203) connected to its upper surface, and the other distillation tank (201) has a second condensate pipe (205) connected to its upper surface.
4. A distillation apparatus for acetate production according to claim 3, characterized in that, Another distillation tank (201) is connected to an output pump (204) on its left side. The output end of the first condensate pipe (203) is connected to the output pump (204) through a conduit. The output end of the output pump (204) is connected to the distillation tank (201) through a conduit.
5. A distillation apparatus for acetate production according to claim 4, characterized in that, The reuse component (3) includes a water tank (301) connected to the upper surface of the base (1), and the upper surface of the water tank (301) is bolted to a cover plate (302).
6. A distillation apparatus for acetate production according to claim 5, characterized in that, The upper surface of the cover plate (302) is connected to a water inlet sleeve (303), and the back of the water tank (301) is connected to an integrated control panel (4).
7. A distillation apparatus for acetate production according to claim 6, characterized in that, The back of the water tank (301) is connected to a water pump (304) via a conduit. The output end of the water pump (304) is connected to an adapter sleeve (305). The inner bottom wall of the water tank (301) is connected to a heat exchanger (306). The upper surfaces of the two distillation tanks (201) are connected to a transmission pipe (307). The ends of the two transmission pipes (307) away from the distillation tanks (201) are connected to an adapter pipe (308). The end of each adapter pipe (308) away from the transmission pipe (307) is connected to the heat exchanger (306).
8. A distillation apparatus for acetate production according to claim 7, characterized in that, The heat exchanger (306) has an exhaust pipe (309) at its output end, which passes through the water tank (301) and extends to the outside of the water tank (301).