Tower top condenser of rectifying tower
By introducing a combination of inclined guide plates, spiral heat dissipation fins, and cooling tubes into the condenser at the top of the distillation column, the problem of unreasonable condenser structural design was solved, achieving more efficient condensation and heat exchange effects and extending the equipment life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-26
- Publication Date
- 2026-04-03
AI Technical Summary
The structural design of the existing distillation column top condenser is unreasonable, resulting in an excessively long heat transfer path or insufficient heat transfer area, which affects condensation efficiency and uneven gas distribution, and thus affects the heat exchange effect.
The design employs inclined guide plates and spiral heat dissipation fins, combined with cooling pipes and an insulation shell, to optimize gas distribution and increase contact area and time. Guide rings and sealing plugs are used to control gas flow rate, achieving orderly flow and extending heat exchange time.
It significantly improves condensation efficiency, evenly distributes gas, increases the contact area and time between gas and condensing medium, enhances heat exchange effect, and extends the service life of condenser.
Smart Images
Figure CN224071205U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of distillation column technology, specifically to a distillation column top condenser. Background Technology
[0002] In the chemical industry, distillation columns are common separation equipment, widely used in the separation and purification of liquid mixtures. The overhead condenser of a distillation column, as a crucial component of the system, directly impacts the efficiency of the entire distillation process and the quality of the product.
[0003] Existing technology discloses a distillation column top condenser, including a condenser body, an inlet pipe, a pump, a circulation pipe, a water exchange pipe, valves, a filter tube, a filter block, a connecting seat, and a mounting seat. This distillation column top condenser uses a filter block installed at the bottom of the inner wall of the filter tube, with the filter tube threadedly connected to the inlet pipe. During distillation, high-temperature gases often carry corrosive substances, which can corrode the inlet pipe over time, causing leakage and rendering the condenser ineffective. By installing a filter tube at the bottom of the inlet pipe, with a filter block inside, the filter block adsorbs harmful corrosive substances from the high-temperature gas, preventing these substances from directly entering the inlet pipe and causing corrosion, thus extending the condenser's service life. Furthermore, the threaded connection between the filter tube and the inlet pipe facilitates disassembly of the filter tube and replacement of the filter block.
[0004] In the aforementioned existing technologies, when high-temperature gas enters, the airflow velocity is often too high, preventing complete heat exchange. This easily leads to some high-temperature gas being discharged without heat exchange, primarily due to an unreasonable condenser structure design, resulting in excessively long heat transfer paths or insufficient heat transfer area. Therefore, to address the problems of existing technologies, there is an urgent need for a novel distillation column top condenser to improve condensation efficiency, optimize gas distribution, and enhance heat exchange effects. Utility Model Content
[0005] Therefore, this application provides a distillation column top condenser to solve the problem of unreasonable condenser structure design in the prior art, which results in excessively long heat transfer paths or insufficient heat transfer area.
[0006] To achieve the above objectives, this application provides the following technical solution:
[0007] A distillation column top condenser, comprising:
[0008] A condenser housing, wherein a connecting pipe is installed at the lower end of the condenser housing, and a filter plate is installed on the inner side of the connecting pipe, and a guide hole is provided at the upper end of the connecting pipe on the lower side of the condenser housing;
[0009] An installation rod is installed on the inner side of the condenser shell, and a guide plate is fixed to the upper end of the installation rod. The lower surface of the guide plate is inclined, and the outer end of the guide plate is arc-shaped.
[0010] The outer side of the condenser shell is fixed with heat dissipation fins, which are arranged in a spiral shape. A cooling pipe, which is also arranged on the outer side of the condenser shell, is attached to one side of the heat dissipation fins. The lower end of the cooling pipe is provided with a medium inlet, and the upper end of the cooling pipe is provided with a medium outlet.
[0011] Optionally, the guide hole is inclined.
[0012] Optionally, the outer side of the heat dissipation fins is provided with an insulating outer shell installed on the outside of the condenser housing.
[0013] Optionally, a guide ring is also installed on the inner side of the upper end of the condenser housing.
[0014] Optionally, the lower side of the guide ring is inclined to guide the gas to converge.
[0015] Optionally, the upper end of the guide ring is fixed with several limiting rods, and springs are provided on the outer side of the limiting rods.
[0016] Optionally, the lower end of the spring is provided with a sealing plug that slides outside the limiting rod.
[0017] Optionally, the sealing plug is engaged with the upper opening of the condenser housing, and the lower side of the sealing plug has a raised structure with an inclined outer surface.
[0018] Compared with the prior art, this application has at least the following beneficial effects:
[0019] 1. By utilizing heat dissipation fins and cooling pipes, high-temperature gas can be more evenly distributed inside the condenser, thereby increasing the contact area and contact time between the gas and the condensing medium, significantly improving condensation efficiency.
[0020] 2. The guide plate allows the high-temperature gas entering the condenser shell to flow orderly to the middle of the condenser and diffuse outward, avoiding the problem of uneven gas distribution in traditional condensers, further improving the condensation effect. It also slows down the entering high-temperature gas, reduces the flow rate of the high-temperature gas when entering the condenser shell, and increases the movement path of the high-temperature gas in the condenser shell, thereby increasing the heat exchange time. Attached Figure Description
[0021] To more intuitively illustrate the prior art and this application, exemplary drawings are provided below. It should be understood that the specific shapes and structures shown in the drawings should not generally be regarded as limiting conditions for implementing this application; for example, based on the technical concept disclosed in this application and the exemplary drawings, those skilled in the art are capable of making conventional adjustments or further optimizations to the addition / reduction / classification of certain units, their specific shapes, positional relationships, connection methods, size ratios, etc.
[0022] Figure 1 This is a front view cross-sectional structural diagram of a distillation column top condenser provided in this application.
[0023] Explanation of reference numerals in the attached figures:
[0024] 1. Condenser shell; 2. Connecting pipe; 3. Guide hole; 4. Filter plate; 5. Heat dissipation fins; 6. Cooling pipe; 7. Medium inlet; 8. Medium outlet; 9. Insulation shell; 10. Mounting rod; 11. Guide plate; 12. Guide ring; 13. Sealing plug; 14. Limiting rod. Detailed Implementation
[0025] The present application will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0026] The present invention provides a distillation column top condenser, including a condenser shell 1, a connecting pipe 2 installed at the lower end of the condenser shell 1, and a filter plate 4 installed on the inner side of the connecting pipe 2. The upper end of the connecting pipe 2 is provided with a guide hole 3 opened on the lower side of the condenser shell 1, and the guide hole 3 is inclined so that the high temperature gas entering from the connecting pipe 2 can gather towards the middle of the condenser shell 1 after passing through the guide hole 3.
[0027] An installation rod 10 is installed on the inner side of the condenser shell 1, and a guide plate 11 is fixed to the upper end of the installation rod 10. The lower surface of the guide plate 11 is inclined, and the outer end of the guide plate 11 is arc-shaped, so that the high-temperature gas discharged from the guide hole 3 can move to the lower middle part of the guide plate 11, and thus be guided by the lower surface of the guide plate 11 to move outward. After passing through the arc-shaped structure of the outer end of the guide plate 11, the high-temperature gas moves downward and comes into contact with the high-temperature gas that enters later, so that the two gases move in opposite directions, thereby forming an airflow collision, reducing the flow rate of the high-temperature gas when entering the condenser shell 1, and also increasing the movement path of the high-temperature gas in the condenser shell 1, thereby increasing the heat exchange time.
[0028] Heat dissipation fins 5 are fixed on the outside of the condenser shell 1, and the heat dissipation fins 5 are arranged in a spiral shape to increase the contact area of the condenser shell 1 with the outside, thereby increasing the heat exchange efficiency. A cooling pipe 6, which is also arranged on the outside of the condenser shell 1, is attached to one side of the heat dissipation fins 5. A medium inlet 7 is provided at the lower end of the cooling pipe 6, and a medium outlet 8 is provided at the upper end of the cooling pipe 6. By attaching the heat dissipation fins 5 to the cooling pipe 6, the high-temperature gas flowing inside the condenser shell 1 can exchange heat with the low-temperature water in the cooling pipe 6, and the heat dissipation fins 5 can improve the heat exchange efficiency.
[0029] An insulating shell 9 is installed on the outside of the heat dissipation fin 5 and is mounted on the outside of the condenser shell 1 to prevent the heat of the water in the cooling pipe 6 after heat exchange from dissipating outward.
[0030] A guide ring 12 is also installed on the inner side of the upper end of the condenser shell 1. The lower side of the guide ring 12 is inclined to guide the gas to gather. Several limiting rods 14 are fixed on the upper end of the guide ring 12, and springs are provided on the outer side of the limiting rods 14. A sealing plug 13 that slides on the outer side of the limiting rods 14 is provided on the lower end of the spring, so that the up and down sliding of the sealing plug 13 can be restricted by the spring, thereby increasing the residence time of the gas inside the condenser shell 1 and facilitating heat exchange.
[0031] The sealing plug 13 is engaged with the upper opening of the condenser shell 1. The lower side of the sealing plug 13 is provided with a raised structure with an inclined outer surface, so that the gas can be guided into the gap between the guide ring 12 and the sealing plug 13, and a small amount of gas can be directly discharged to the outside.
[0032] When the gas pressure inside the condenser shell 1 rises to a certain level, the sealing plug 13 moves upward, thereby venting the gas and allowing some of the gas pressure remaining inside the condenser shell 1 to be discharged outward.
[0033] The technical features of the above embodiments can be combined in any way (as long as there is no contradiction in the combination of these technical features). For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described; these embodiments not explicitly written should also be considered to be within the scope of this specification.
Claims
1. A top condenser for a distillation column, characterized in that, include: A condenser housing (1) is provided with a connecting pipe (2) installed at the lower end of the condenser housing (1), and a filter plate (4) is installed on the inner side of the connecting pipe (2). A guide hole (3) is provided at the upper end of the connecting pipe (2) on the lower side of the condenser housing (1). An installation rod (10) is installed on the inner side of the condenser housing (1), and a guide plate (11) is fixed at the upper end of the installation rod (10). The lower surface of the guide plate (11) is inclined, and the outer end of the guide plate (11) is arc-shaped. The outer side of the condenser shell (1) is fixed with heat dissipation fins (5), and the heat dissipation fins (5) are arranged in a spiral shape. A cooling pipe (6) is attached to one side of the heat dissipation fins (5), which is also arranged on the outer side of the condenser shell (1). The lower end of the cooling pipe (6) is provided with a medium inlet (7), and the upper end of the cooling pipe (6) is provided with a medium outlet (8).
2. The distillation column top condenser according to claim 1, characterized in that, The guide hole (3) is set at an angle.
3. The distillation column top condenser according to claim 1, characterized in that, The heat dissipation fins (5) are provided with an insulation shell (9) installed on the outside of the condenser shell (1).
4. A distillation column top condenser according to claim 1, characterized in that, A guide ring (12) is also installed on the inner side of the upper end of the condenser shell (1).
5. A distillation column top condenser according to claim 4, characterized in that, The lower side of the guide ring (12) is inclined to guide the gas to gather.
6. A distillation column top condenser according to claim 5, characterized in that, The upper end of the guide ring (12) is fixed with several limiting rods (14), and springs are provided on the outer side of the limiting rods (14).
7. A distillation column top condenser according to claim 6, characterized in that, The lower end of the spring is provided with a sealing plug (13) that slides outside the limiting rod (14).
8. A distillation column top condenser according to claim 7, characterized in that, The sealing plug (13) is engaged with the upper opening of the condenser shell (1), and the lower side of the sealing plug (13) is provided with a raised structure with an inclined outer surface.