Efficient heat exchange device for condenser of rectifying tower

Abstract

The utility model relates to the technical field of condenser equipment, and discloses an efficient heat exchange device of a condenser of a rectifying tower, which comprises a condensing shell, a plurality of spiral heat exchange pipes are assembled in the condensing shell, a steam inlet is arranged on one side of the top of the condensing shell, an exhaust pipe is arranged on the other side of the top of the condensing shell, and a steam outlet is arranged on the other side of the top of the condensing shell. A filtering assembly is mounted at the top of the exhaust pipe and is used for discharging and filtering non-condensable harmful gas; the filter assembly comprises an activated carbon filter cylinder and a mounting cylinder, and the activated carbon filter cylinder is located in the mounting cylinder. According to the heat exchanger, the design that the multiple layers of spiral coils are matched with the spoilers is adopted, the contact area of steam and cooling media is increased, and the heat exchange efficiency is improved. The special coating on the surface of the coil accelerates discharge of condensate, and heat exchange is prevented from being affected by accumulated liquid. And the temperature control device adjusts the cooling water flow in real time. And the filtering assembly can effectively remove non-condensable toxic gas.

Description

Technical Field

[0001] This utility model relates to the field of condenser equipment technology, and in particular to a high-efficiency heat exchange device for a distillation column condenser. Background Technology

[0002] Distillation columns, widely used in chemical processes to separate different components in mixtures, achieve efficient separation through gas-liquid contact. In boron isotope separation, boron trifluoride methyl ether complex (BF3·OCH3CH3) is used for separating boron-10 (… 10 B) and Boron-11 ( 11 B) is a key carrier. Utilizing the volatility difference of boron trifluoride methyl ether complexes for isotope separation has become a current method for obtaining high-abundance... 10 B is an effective way, and the distillation column plays an indispensable core role in this process.

[0003] In distillation processes using boron trifluoride methyl ether complexes as the separation medium, the condenser is a crucial component of the entire system. The condenser is primarily used to efficiently condense the overhead vapor into liquid for reflux or product output. Its condensation efficiency directly affects the separation efficiency of the distillation column and the enrichment of the product. Especially when high-value-added isotope separation is involved, even higher requirements are placed on the condenser's heat exchange efficiency and condensation rate.

[0004] However, existing condensers typically employ conventional shell-and-tube or plate structures, which suffer from limitations such as limited heat exchange area, insufficient contact between steam and cooling medium, and slow condensation rates. This results in low condensation efficiency, making it difficult to meet the continuous and efficient condensation requirements of high-purity isotope separation processes. Furthermore, traditional condensers struggle to achieve dynamic temperature control and cannot adapt to pressure and temperature fluctuations during separation. This can easily lead to incomplete condensation, high energy consumption, and unstable reflux ratios, ultimately affecting the overall separation performance and energy efficiency of the distillation column.

[0005] To address the above problems, a high-efficiency heat exchange device for the condenser of a distillation column is proposed. Utility Model Content

[0006] To overcome the above shortcomings, this utility model provides a high-efficiency heat exchange device for a distillation column condenser, aiming to solve the problems of low cooling efficiency and high energy consumption in existing high-efficiency heat exchange devices for distillation column condensers.

[0007] In order to achieve the above object, the utility model discloses the following technical scheme: a condenser high -efficient heat transfer device of rectifying tower, including condensing shell, the inside of condensing shell is equipped with a plurality of spiral heat exchange pipes, the top one side of condensing shell is provided with steam import, the top other side of condensing shell is installed with exhaust pipe, the top of exhaust pipe is installed with filter assembly, it is used to carry out the discharge filtering of incondensable harmful gas;

[0008] The filter assembly includes an activated carbon filter cartridge and a mounting cylinder, the activated carbon filter cartridge is located inside the mounting cylinder, the bottom of the mounting cylinder is fixedly connected with a bottom plate, and the exhaust pipe and the bottom plate are connected and fixed through a plurality of mounting bolts.

[0009] As a further description of the above technical solution:

[0010] The bottom of the condensing shell is provided with two condensing outlets.

[0011] As a further description of the above technical solution:

[0012] The right side of the condensing shell is provided with a cold water inlet and a cold water outlet, respectively, and both are connected with the spiral heat exchange pipes.

[0013] As a further description of the above technical solution:

[0014] The bottom of the condensing shell is provided with two support seats.

[0015] As a further description of the above technical solution:

[0016] The top of the condensing shell is provided with a plurality of automatic regulating valves side by side, and the inside of the condensing shell is provided with a temperature sensor.

[0017] As a further description of the above technical solution:

[0018] The plurality of spiral heat exchange pipes are distributed in multiple layers in a staggered manner, and the outer sides of the plurality of spiral heat exchange pipes are provided with a plurality of partition plates.

[0019] As a further description of the above technical solution:

[0020] The outer surface of the spiral heat exchange pipe is coated with a liquid-repellent nano coating.

[0021] As a further description of the above technical solution:

[0022] The plurality of spiral heat exchange pipes are provided with a spoiler.

[0023] The utility model has the following beneficial effects:

[0024] 1. The utility model discloses, multilayer spiral coil cooperation spoiler design, contact area of steam and cooling medium is greatly promoted, and heat exchange process is strengthened, and heat exchange efficiency is improved obviously.

[0025] 2. The utility model discloses, the special coating of coil surface can promote steam quick condensation and form liquid drop, and flow away quickly, avoid the influence of heat exchange of effusion, and condensation speed is accelerated.

[0026] 3. The utility model discloses, through temperature control device real -time regulation cooling water flow, dynamic adaptation is different working condition, and energy is saved.

[0027] 4. The utility model discloses, through filter assembly to the non - condensable toxic gas of producing in condensation process carries out effective filtration and discharges, reduces the harm to the environment. DRAWINGS

[0028] Figure 1 It is a three -dimensional schematic view of the efficient heat exchange device of the condenser of rectifying tower that the utility model proposes;

[0029] Figure 2 It is the structure schematic view of activated carbon filter cartridge of the efficient heat exchange device of the condenser of rectifying tower that the utility model proposes;

[0030] Figure 3 It is the structure schematic view of spiral heat exchange pipe of the efficient heat exchange device of the condenser of rectifying tower that the utility model proposes;

[0031] Figure 4 It is the structure schematic view of spoiler of the efficient heat exchange device of the condenser of rectifying tower that the utility model proposes.

[0032] Legend:

[0033] 1, condensing shell;2, support seat;3, cold water import;4, cold water export;5, steam import;6, condensing export;7, exhaust pipe;8, filter assembly;801, activated carbon filter cartridge;802, installation cylinder;803, bottom plate;804, mounting bolt;9, automatic regulating valve;10, spiral heat exchange pipe;11, partition plate;12, spoiler. DETAILED DESCRIPTION

[0034] The technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skill in the art without creative labor belong to the scope of protection of the utility model.

[0035] Refer to Figure 1 -Figure 4 The utility model provides a kind of embodiment of the condenser high-efficiency heat exchange device of rectifying tower, including condensing shell 1, its bottom is provided with two support seat 2, for stabilizing fixed condenser, ensure its reliable operation in rectifying tower system. Two condensing outlets 6 are installed at the bottom of condensing shell 1, for discharging high-purity liquid phase material after condensation, so as to return flow to rectifying tower or as product output. Condensing shell 1 is equipped with multiple spiral heat exchange tubes 10 inside, these spiral heat exchange tubes 10 are made of high-thermal-conductivity material, and liquid-repellent nano coating is coated on outer surface, which helps to improve condensation efficiency, so that target components in tower top gas are condensed into liquid phase faster. Multiple spiral heat exchange tubes 10 are distributed in multiple layers with staggered positions, which greatly improves the heat exchange area of gas-liquid two-phase, while ensuring the uniformity of condensation and improving the separation effect of rectifying tower. Multiple partition plates 11 are arranged on the outer side of spiral heat exchange tube 10, for reasonably guiding the flow direction of condensate, preventing liquid from stagnating on the surface of heat exchange tube, and improving heat exchange effect. In addition, a spoiler 12 is installed between multiple spiral heat exchange tubes 10, which can enhance the turbulence degree of steam flow, so that gas fully contacts with cooling medium after entering the condenser, reduces short-circuit flow phenomenon, improves condensation efficiency and overall energy efficiency of rectifying tower. Cold water inlet 3 and cold water outlet 4 are respectively arranged on the right side of condensing shell 1, both of which are connected with spiral heat exchange tube 10, so that cooling medium can be efficiently circulated in heat exchange tube, realize sufficient heat absorption and carry away heat released during condensation process, and ensure the continuity and stability of condensation process. Steam inlet 5 is arranged on one side of the top of condensing shell 1, and the enriched steam at the top of rectifying tower enters the condenser for efficient condensation through the inlet. To realize intelligent control, multiple automatic regulating valves 9 are installed side by side on the top of condensing shell 1, and temperature sensor is installed inside condensing shell 1, which can automatically adjust the flow of cooling water according to the data provided by temperature sensor, so that the condensation process is always maintained in the best heat exchange state, improving the operation stability of rectifying tower. At the same time, it can be linked with automatic regulating valve 9 to dynamically optimize condensation effect. To solve the problem of non-condensable gas emission, exhaust pipe 7 is installed on the other side of the top of condensing shell 1, and filter assembly 8 is integrated at the top of exhaust pipe 7, which can effectively filter non-condensable gas such as residual volatile organic compounds or harmful gas, ensuring the environmental performance and safety of rectifying tower system.

[0036] Refer to Figure 2The filter assembly 8 includes an activated carbon filter cartridge 801 and a mounting cylinder 802, wherein the activated carbon filter cartridge 801 is located inside the mounting cylinder 802, the activated carbon filter cartridge 801 is made of activated carbon material with high adsorption performance, which can effectively remove non-condensable harmful gases in the exhaust gas, such as volatile organic compounds, acidic gases or other pollutants, thereby ensuring that the exhaust gas meets environmental protection standards. The mounting cylinder 802 is made of corrosion-resistant metal or high-strength composite material, has good sealing performance and mechanical strength, and can ensure the long-term stable operation of the filter assembly 8 under complex working conditions such as high temperature and high humidity. The bottom of the mounting cylinder 802 is fixedly connected with a bottom plate 803, which not only plays a supporting role, but also ensures the stability of the activated carbon filter cartridge 801 inside the mounting cylinder 802, preventing displacement or loosening of the filter cartridge during operation due to airflow impact or equipment vibration. In order to ensure the stable connection of the filter assembly 8, the exhaust pipe 7 and the bottom plate 803 are connected and fixed by a plurality of mounting bolts 804, which are made of high-temperature-resistant and corrosion-resistant materials and can withstand temperature changes and long-term use environment in the exhaust system, preventing loosening or failure due to thermal expansion and contraction or corrosion. And when the equipment is maintained or the activated carbon filter cartridge 801 is replaced, the bottom plate 803 can be quickly disassembled, the filter cartridge can be replaced or the inside can be cleaned, and the maintenance efficiency and service life of the system can be improved.

[0037] Working principle: When the device is working, the steam at the top of the tower enters the condensing shell 1 through the steam inlet 5, and the cooling water flows in the inside of the plurality of spiral heat exchange pipes 10 in the condensing shell 1. The cooling water absorbs the heat released by the steam and is discharged through the cold water outlet 4. With the transfer of heat, the steam condenses into a liquid phase on the outer surface of the spiral heat exchange pipe 10 and flows downward along the outer wall of the heat exchange pipe. A plurality of partition plates 11 are used to guide the flow direction of the condensed liquid, and the spoiler 12 changes the flow trajectory of the steam to make it fully contact the spiral heat exchange pipe 10. The condensed liquid is discharged through the condensing outlet 6, part of which is returned to the rectifying tower, and the rest is output as a product. One side of the top of the condensing shell 1 is provided with an exhaust pipe 7, and the top of the exhaust pipe 7 is connected with a filter assembly 8 composed of a mounting cylinder 802 and an activated carbon filter cartridge 801 located inside the mounting cylinder 802. Non-condensable gas enters the mounting cylinder 802 and is filtered by the activated carbon filter cartridge 801 to remove harmful components therein, and is finally discharged through the exhaust pipe 7. The bottom of the mounting cylinder 802 is fixedly connected with a bottom plate 803, and the exhaust pipe 7 and the bottom plate 803 are connected by a plurality of mounting bolts 804 to fix the assembly on the exhaust pipe 7. In addition, a temperature sensor is installed inside the condensing shell 1, and the data measured by the temperature sensor is used to control a plurality of automatic regulating valves 9 installed side by side at the top. These valves automatically adjust the cooling water flow according to the change of the condensing temperature, and cooperate with the overall separation process of the rectifying tower.

[0038] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application has been described in detail, for the skilled in the art, it still can be modified, or for part of the technical features of the equivalent replacement, the spirit and principles of the present application, made any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. A high-efficiency heat exchange device for a condenser of a rectifying tower, comprising a condensing shell (1), characterized in that: The inside of the condensing shell (1) is equipped with a plurality of spiral heat exchange pipes (10), one side of the top of the condensing shell (1) is provided with a steam inlet (5), the other side of the top of the condensing shell (1) is installed with an exhaust pipe (7), the top of the exhaust pipe (7) is installed with a filter assembly (8) for discharging and filtering non-condensable harmful gas. The filter assembly (8) comprises an activated carbon filter cartridge (801) and a mounting cylinder (802), the activated carbon filter cartridge (801) is located in the inside of the mounting cylinder (802), the bottom of the mounting cylinder (802) is fixedly connected with a bottom plate (803), and the exhaust pipe (7) and the bottom plate (803) are connected and fixed through a plurality of mounting bolts (804).

2. The high-efficiency heat exchange device for condensers of rectifying columns according to claim 1, characterized in that: The bottom of the condensing shell (1) is installed with two condensing outlets (6).

3. The high-efficiency heat exchange device for condensers of rectifying columns according to claim 1, characterized in that: The right side of the condensing shell (1) is respectively provided with a cold water inlet (3) and a cold water outlet (4), and both are connected with the spiral heat exchange pipes (10).

4. The high-efficiency heat exchange device for condensers of rectifying columns according to claim 1, characterized in that: The bottom of the condensing shell (1) is provided with two supporting seats (2).

5. The high-efficiency heat exchange device for condensers of rectifying columns according to claim 1, characterized in that: The top of the condensing shell (1) is installed with a plurality of automatic regulating valves (9) side by side, and the inside of the condensing shell (1) is provided with a temperature sensor.

6. The high-efficiency heat exchange device for condensers of rectifying columns according to claim 1, characterized in that: A plurality of the spiral heat exchange pipes (10) are distributed in multiple layers and are staggered, and the outer side of the plurality of spiral heat exchange pipes (10) is provided with a plurality of partition plates (11).

7. The high-efficiency heat exchange device for condensers of rectifying columns according to claim 1, characterized in that: The outer surface of the spiral heat exchange pipe (10) is coated with a liquid-repellent nano coating.

8. The high-efficiency heat exchange device for condensers of rectifying columns according to claim 1, characterized in that: A plurality of the spiral heat exchange pipes (10) are provided with a spoiler (12).

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