Novel deep condensing device

Abstract

The utility model relates to the technical field of condensing devices, and discloses a novel deep condensing device which comprises a distillation still, a steam output port of the distillation still is connected with an input port of a first-stage water condenser through a pipeline, and an output port of the first-stage water condenser is connected with an input port of a second-stage water condenser through a pipeline. An output port of the secondary water condenser is connected with a collecting box through a pipeline, an exhaust port of the collecting box is connected with a tail gas adsorption mechanism through a pipeline, a refrigerator is installed at the bottom of the saline water storage box, a water storage box is installed in the cooling box, and a second conveying pump is connected with the saline water storage box through a pipeline. According to the utility model, acetic acid steam is subjected to primary condensation by the condenser taking normal-temperature tap water as a water source, and then is subjected to secondary condensation by the condenser taking water flow cooled by brine ice as a water source, so that acetic acid is completely condensed into liquid, and the acetic acid cannot be solidified and crystallized; and the acetic acid can be fully condensed and recycled conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of condensation devices, in particular to a novel deep condensation device. Background Art

[0002] During the condensation reaction of cyanoacetic acid, acetic anhydride reacts with water to produce acetic acid. Since the presence of acetic acid can affect subsequent uses, the acetic acid must be recovered through evaporation and condensation. The existing solution is to separate the acetic acid by distillation. This involves directly using a condenser with ice-salt water as the water source to condense the acetic acid. However, the temperature of ice-salt water is around 0°C, while the freezing point of acetic acid is only 16°C. This causes the acetic acid to change from a liquid to a solid state at a relatively low temperature during condensation, causing some acetic acid to solidify in the condenser. This partially solidified acetic acid is difficult to recover from the pipeline and may cause pipeline blockage. Therefore, in response to the above situation, there is an urgent need to develop a new deep condensation device that first uses a condenser with room-temperature tap water as the water source to condense the acetic acid vapor, and then uses a condenser with water cooled by ice-salt water as the water source to condense the acetic acid vapor for secondary condensation. This device completely condenses the acetic acid into a liquid without solidification or crystallization, facilitating the full condensation and recovery of the acetic acid. This device can overcome the shortcomings of current practical applications and meet current needs. Utility Model Content

[0003] The purpose of the present invention is to provide a novel deep condensation device to solve the problems raised in the above background technology.

[0004] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0005] A novel deep condensation device comprises a distillation kettle, a primary water condenser, a secondary water condenser, a collecting box, an exhaust gas adsorption mechanism, a cooling box, a water storage tank, a brine storage tank, a first delivery pump, a second delivery pump and a refrigerator, wherein the steam output port of the distillation kettle is connected to the input port of the primary water condenser via a pipeline, the output port of the primary water condenser is connected to the input port of the secondary water condenser via a pipeline, the output port of the secondary water condenser is connected to the collecting box via a pipeline, the exhaust port of the collecting box is connected to the exhaust gas adsorption mechanism via a pipeline, a refrigerator is installed at the bottom of the brine storage tank, a water storage tank is installed in the cooling box, the second delivery pump is connected to the brine storage tank via a pipeline, the second delivery pump is connected to the cooling box via a pipeline, and the cooling box is connected to the brine storage tank via a pipeline.

[0006] Preferably, the first delivery pump is connected to the water tank through a pipeline, the first delivery pump is connected to the water inlet of the secondary water condenser through a pipeline, and the drain outlet of the secondary water condenser is connected to the water tank through a pipeline.

[0007] Preferably, the water storage tank is made of copper.

[0008] Preferably, the water inlet of the first-level water condenser is connected to an external tap water source at room temperature.

[0009] Preferably: the exhaust gas adsorption mechanism includes: an outer shell, a top cover, a mesh box, a bottom plate and a magnetic block. The top of the outer shell is detachably installed with a top cover, and a plurality of mesh boxes are installed on the lower side of the top cover. Activated carbon is stored in each mesh box, and a bottom plate is installed at the bottom of each mesh box. The left end of the bottom plate is rotatably connected to the mesh box through a hinge.

[0010] Preferably, a magnetic block for absorbing the bottom plate is installed at the right end of the bottom of the net box.

[0011] Preferably, an exhaust pipe is provided on the right side of the outer shell.

[0012] The beneficial effects of the utility model are as follows: the novel deep condensing device adds acetic anhydride mixed with acetic acid into the distillation kettle for distillation, so that the acetic acid is vaporized and discharged, and the vaporized acetic acid first enters the primary water condenser for condensation, and the steam is preliminarily condensed by the normal temperature tap water circulating in the primary water condenser, so that most of the steam is condensed, and then the condensed acetic acid and a small amount of condensed steam enter the secondary water condenser for condensation. At this time, the refrigerator continuously refrigerates the brine in the brine storage tank, and the ice brine is transported to the cooling box by the second delivery pump, and the ice brine in the cooling box is used to refrigerate the brine in the water storage tank. The water is cooled, and the salt water in the cooling box will flow back to the salt water storage tank for circulation. Then, the first delivery pump transports the low-temperature water flow in the water storage tank to the secondary water condenser, and the steam is further cooled by the low-temperature water flow, so that the acetic acid is completely condensed into liquid. The water flow in the secondary water condenser is then returned to the water storage tank for circulation. The completely cooled acetic acid liquid and air flow flow into the collection box and are collected. Finally, the residual gas in the collection box enters the outer shell and passes through multiple mesh boxes before being discharged. The activated carbon in the mesh boxes absorbs the harmful substances that may be contained in the gas to prevent air pollution. In summary, the utility model first uses a condenser with normal temperature tap water as a water source to perform the initial condensation of acetic acid vapor, and then uses a condenser with water flow cooled by ice salt water as a water source to perform the secondary condensation of acetic acid vapor, so that the acetic acid is completely condensed into liquid, and the acetic acid will not solidify and crystallize, which is convenient for sufficient condensation and recycling of the acetic acid. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural diagram of the present utility model.

[0014] Figure 2 This is an internal cross-sectional view of the tail gas adsorption mechanism in the utility model.

[0015] Figure 3 It is a partial structural diagram of the utility model.

[0016] Figure 4 For this utility model Figure 3 Schematic diagram of the open state.

[0017] Legend:

[0018] 1. Distillation kettle; 2. Primary water condenser; 3. Secondary water condenser; 4. Collection box; 5. Tail gas adsorption mechanism; 501. Outer shell; 5011. Exhaust pipe; 502. Top cover; 503. Net box; 504. Bottom plate; 505. Magnetic block; 6. Cooling box; 7. Water storage tank; 8. Brine storage tank; 9. First delivery pump; 10. Second delivery pump; 11. Refrigerator. DETAILED DESCRIPTION

[0019] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] Specific examples are given below.

[0021] See also Figures 1 to 4In an embodiment of the present invention, a novel deep condensation device includes a distillation kettle 1, a primary water condenser 2, a secondary water condenser 3, a collecting box 4, an exhaust gas adsorption mechanism 5, a cooling box 6, a water storage tank 7, a brine storage tank 8, a first delivery pump 9, a second delivery pump 10 and a refrigerator 11. The steam output port of the distillation kettle 1 is connected to the input port of the primary water condenser 2 through a pipeline, the output port of the primary water condenser 2 is connected to the input port of the secondary water condenser 3 through a pipeline, the output port of the secondary water condenser 3 is connected to the collecting box 4 through a pipeline, and the exhaust port of the collecting box 4 is connected to the exhaust port of the collecting box 4 through a pipeline. The tail gas adsorption mechanism 5 is connected, and a refrigerator 11 is installed at the bottom of the brine storage tank 8. The brine in the brine storage tank 8 is refrigerated into ice brine by the refrigerator 11. A water storage tank 7 is installed in the cooling box 6. The water storage tank 7 is made of copper, which has good thermal conductivity. The second delivery pump 10 is connected to the brine storage tank 8 through a pipeline. The second delivery pump 10 is connected to the cooling box 6 through a pipeline. The cooling box 6 is connected to the brine storage tank 8 through a pipeline. The water inlet of the primary water condenser 2 is connected to the external normal temperature tap water source. The drain outlet of the primary water condenser 2 directly discharges the used water. The first delivery pump 9 is connected to the water storage tank 7 through a pipeline. The first delivery pump 9 is connected to the water inlet of the secondary water condenser 3 through a pipeline. The drain outlet of the secondary water condenser 3 is connected to the water storage tank 7 through a pipeline. When in use, acetic anhydride mixed with acetic acid is added to the distillation kettle 1 for distillation, so that the acetic acid is vaporized and discharged. The vaporized acetic acid first enters the primary water condenser 2 for condensation. The steam is preliminarily condensed by the normal temperature tap water circulating in the primary water condenser 2, so that most of the steam is condensed. Then, the condensed acetic acid and a small amount of condensed steam enter the secondary water condenser. 3, at this time, the refrigerator 11 continues to refrigerate the brine in the brine storage tank 8, and transports the ice brine to the cooling tank 6 through the second delivery pump 10. The ice brine in the cooling tank 6 cools the water in the water storage tank 7, and the brine in the cooling tank 6 will flow back to the brine storage tank 8 for circulation. Then, the first delivery pump 9 transports the low-temperature water flow in the water storage tank 7 to the secondary water condenser 3, and the steam is further cooled by the low-temperature water flow, so that the acetic acid is completely condensed into liquid. The used water in the secondary water condenser 3 flows back to the water storage tank 7 for circulation.

[0022] The exhaust gas adsorption mechanism 5 includes: an outer shell 501, a top cover 502, a mesh box 503, a bottom plate 504 and a magnetic block 505. The top of the outer shell 501 is detachably installed with a top cover 502, and a plurality of mesh boxes 503 are installed on the lower side of the top cover 502. Activated carbon is stored in each mesh box 503. A bottom plate 504 is installed at the bottom of each mesh box 503. The left end of the bottom plate 504 is rotatably connected to the mesh box 503 by a hinge. A magnetic block 505 for adsorbing the bottom plate 504 is installed at the right end of the bottom of the mesh box 503. An exhaust pipe 5011 is provided on the right side of the outer shell 501. The residual gas in the collection box 4 enters the outer shell 501 and passes through a plurality of mesh boxes 503 before being discharged. The activated carbon in the mesh box 503 absorbs harmful substances that may be contained in the gas. After long-term use, the top cover 502 and the mesh box 503 are removed, and the activated carbon in the mesh box 503 can be replaced.

[0023] Working principle: This new deep condensation device adds acetic anhydride mixed with acetic acid into the distillation kettle 1 for distillation, so that the acetic acid is vaporized and discharged. The vaporized acetic acid first enters the primary water condenser 2 for condensation. The normal temperature tap water circulating in the primary water condenser 2 performs preliminary condensation on the steam, so that most of the steam is condensed. Then, the condensed acetic acid and a small amount of condensed steam enter the secondary water condenser 3 for condensation. At this time, the refrigerator 11 continues to refrigerate the brine in the brine storage tank 8, and the ice brine is transported to the cooling tank 6 by the second delivery pump 10. The ice brine in the cooling tank 6 cools the water in the water storage tank 7. The brine in the cooling box 6 will also flow back to the brine storage tank 8 for circulation. Then, the first delivery pump 9 delivers the low-temperature water flow in the water storage tank 7 to the secondary water condenser 3. The steam is further cooled by the low-temperature water flow, so that the acetic acid is completely condensed into liquid. The used water flow in the secondary water condenser 3 flows back to the water storage tank 7 for circulation. The completely cooled acetic acid liquid and air flow flow into the collection box 4 and are collected. Finally, the residual gas in the collection box 4 enters the outer shell 501, passes through multiple mesh boxes 503 and is discharged. The activated carbon in the mesh box 503 absorbs harmful substances that may be contained in the gas to prevent air pollution.

[0024] The above are only preferred specific implementation methods of the present invention, but the protection scope of the present invention is not limited to them. Any technician familiar with the technical field can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention within the technical scope disclosed by the present invention, and they should be covered by the protection scope of the present invention.

Claims

1. A new deep condensation device, characterized in that: The invention comprises a still (1), a primary water condenser (2), a secondary water condenser (3), a collecting box (4), an exhaust gas adsorption mechanism (5), a cooling box (6), a water storage tank (7), a brine storage tank (8), a first delivery pump (9), a second delivery pump (10) and a refrigerator (11), wherein the steam output port of the still (1) is connected to the input port of the primary water condenser (2) through a pipeline, the output port of the primary water condenser (2) is connected to the input port of the secondary water condenser (3) through a pipeline, and the output port of the secondary water condenser (3) is connected to the input port of the secondary water condenser (3) through a pipeline. The pipeline is connected to the collection box (4), the exhaust port of the collection box (4) is connected to the tail gas adsorption mechanism (5) through a pipeline, a refrigerator (11) is installed at the bottom of the brine storage box (8), a water storage tank (7) is installed in the cooling box (6), the second delivery pump (10) is connected to the brine storage tank (8) through a pipeline, the second delivery pump (10) is connected to the cooling box (6) through a pipeline, the cooling box (6) is connected to the brine storage tank (8) through a pipeline, and the first delivery pump (9) is connected to the water storage tank (7) through a pipeline.

2. The novel deep condensation device according to claim 1, characterized in that: The first delivery pump (9) is connected to the water inlet of the secondary water condenser (3) through a pipeline, and the water outlet of the secondary water condenser (3) is connected to the water storage tank (7) through a pipeline.

3. The novel deep condensation device according to claim 1, characterized in that: The water storage tank (7) is made of copper.

4. The novel deep condensation device according to claim 1, characterized in that: The water inlet of the first-stage water condenser (2) is connected to an external normal-temperature tap water source.

5. The novel deep condensation device according to claim 1, characterized in that: The tail gas adsorption mechanism (5) comprises: an outer shell (501), a top cover (502), a mesh box (503), a bottom plate (504) and a magnetic block (505). The top cover (502) is detachably mounted on the top of the outer shell (501). A plurality of mesh boxes (503) are mounted on the lower side of the top cover (502). Activated carbon is stored in each of the mesh boxes (503). A bottom plate (504) is mounted on the bottom of each of the mesh boxes (503). The left end of the bottom plate (504) is rotatably connected to the mesh box (503) via a hinge.

6. The novel deep condensation device according to claim 5, characterized in that: A magnetic block (505) for absorbing the bottom plate (504) is installed at the right end of the bottom of the net box (503).

7. The novel deep condensation device according to claim 5, characterized in that: An exhaust pipe (5011) is provided on the right side of the outer shell (501).

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