一种用于氰基吡啶制备的多级吸收液冷却器
By incorporating spiral grooves and heat-conducting pipes inside the condenser tubes and installing conical columns on the outside, and using aluminum alloy materials, the problems of small contact area and low heat transfer efficiency in multi-stage absorber coolers are solved, achieving more efficient heat exchange.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CANGZHOU LINGANG YANUO CHEM CO LTD
- Filing Date
- 2025-07-16
- Publication Date
- 2026-07-17
AI Technical Summary
Existing multi-stage absorbent coolers for cyanopyridine preparation have small contact areas and low heat transfer efficiency, which affects the cooling effect.
By incorporating spiral grooves and heat-conducting pipes inside the condenser tubes and installing conical columns on the outside, and using aluminum alloy materials, the contact area between the cooling water and the condenser tubes and the heat transfer efficiency are enhanced.
It improves the cooling efficiency of the multi-stage absorbent and enhances the cooling effect.
Smart Images
Figure CN224517496U_ABST
Abstract
Claims
1. A multi-stage absorption liquid cooler for the production of cyanopyridines, characterized by: include The main body of the cooling device (4) and the water inlet pipe (3) and water outlet pipe (10) are provided at the upper left end and the lower right end of the main body of the cooling device (4); The cooling device body (4) is connected to the left and right ends of the first mounting plate (7), and the second mounting plate (14) is installed on the outer side of the first mounting plate (7). The first mounting plate (7) and the second mounting plate (14) are provided with insertion holes (2). The second mounting plate (14) is installed on the outer side of the cooling device body (4) and on the left and right sides of the cooling device body (4). The upper end of the liquid inlet (15) and the lower end of the liquid outlet (8) are provided with liquid inlet pipe (1) and liquid outlet pipe (9), respectively. A condenser tube (5) is installed inside the main body (4) of the cooling device and inside the insertion hole (2). A spiral groove (6) is provided on the inner wall of the condenser tube (5). A heat-conducting tube (20) is installed on the outer side of the condenser tube (5). A tapered column (18) is installed on the outer wall of the heat-conducting tube (20). A waterproof ring (16) is connected to the outer side of the condenser tube (5) and inside the first mounting plate (7) and the heat-conducting tube (20). A waterproof sleeve (17) is installed on the inner wall of the waterproof ring (16). By using the spiral groove (6), heat pipe (20) and conical column (18) together, the contact area between the cooling water and the condenser (5) is not only enhanced, but also the heat transfer efficiency of the condenser (5) is improved, thereby increasing the cooling efficiency of the multi-stage absorbent.
2. A multi-stage falling film absorber liquid cooler for the production of cyanopyridines according to claim 1, characterized in that: A threaded hole (21) is provided on the outer wall of the heat-conducting plate, and a threaded column (19) is connected inside the threaded hole (21) and on the inner side of the tapered column (18).
3. A multi-stage falling film absorber liquid cooler for the production of cyanopyridines according to claim 2, characterized in that: The threaded column (19) and the tapered column (18) are an integral structure. The outer wall of the threaded column (19) is provided with external threads, and the inner wall of the threaded hole (21) is provided with internal threads. The tapered column (18) and the heat-conducting plate are both made of aluminum alloy material.
4. A multi-stage falling film absorber liquid cooler for the production of cyanopyridines according to claim 3, characterized in that: The threaded column (19) is connected to the internal thread of the threaded hole (21) through the external thread on the outer wall, so that the tapered column (18) is installed on the outer wall of the heat-conducting plate. The installation stability and replacement convenience of the tapered column (18) are enhanced by the setting of the threaded column (19), the threaded hole (21) and the threaded connection.
5. A multi-stage falling film absorber liquid cooler for the production of cyanopyridines according to claim 1, characterized in that: A support plate (13) is welded to the lower end of the main body (4) of the cooling device, and a support pad (11) is connected to the lower end of the support plate (13).
6. A multi-stage falling film absorber liquid cooler for the production of cyanopyridines according to claim 5, characterized in that: A reinforcing plate (12) is provided on the inner side of the two adjacent support plates (13), and the reinforcing plate (12) and the support plate (13) are fixedly connected by welding.
7. A multi-stage falling film absorber liquid cooler for the production of cyanopyridines according to claim 6, characterized in that: The main body (4), support plate (13), support pad (11) and reinforcing plate (12) of the cooling device are all made of stainless steel. The stability of the main body (4) of the cooling device is enhanced by the combined use of the support column, support pad (11) and reinforcing plate (12).