A condensing device for producing n-propyl acetate
By improving the structural design and stirring structure of the condenser, the problem of low refrigeration efficiency caused by slow coolant flow rate was solved, achieving efficient condensation of n-propyl acetate vapor and rapid coolant flow, thus improving the refrigeration effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANJING NALCOHOL NEW MATERIAL CO LTD
- Filing Date
- 2025-07-28
- Publication Date
- 2026-07-21
AI Technical Summary
The existing condensation equipment for the production of n-propyl acetate has poor refrigeration efficiency due to the poor flow rate of the coolant inside the refrigeration box.
By incorporating a steam inlet pipe, a steam outlet pipe, a jet hole, a telescopic rod, a limit plate, and a spring into the condenser, the normal flow of n-propyl acetate vapor is ensured. Furthermore, the flow rate and stirring effect of the coolant are improved by utilizing a servo motor-driven agitator and cooling coil structure, thereby enhancing the cooling effect.
This technology enables the effective condensation of n-propyl acetate vapor and the rapid flow of coolant, improving the overall refrigeration efficiency of the condensation unit and ensuring product quality and production efficiency.
Smart Images

Figure CN224534822U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of condensation technology of n-propyl acetate, and in particular to a condensation device for the production of n-propyl acetate. Background Technology
[0002] Propyl acetate is an important organic chemical raw material widely used in coatings, inks, fragrances, pharmaceuticals, and other fields. In its production process, the condensation unit is one of the key pieces of equipment, directly affecting product quality and production efficiency.
[0003] Utility model patent CN215428146U discloses a multi-stage composite condensation and dehydration tower for the production of n-propyl acetate, including a tower body, a condensation box, a third dehydration chamber, and a collection box. The collection box is located at the bottom of the tower body, and a first dehydration chamber, a second dehydration chamber, and a third dehydration chamber are arranged sequentially at the center of the tower body. The first dehydration chamber, the second dehydration chamber, and the third dehydration chamber are all connected by connecting pipes. Both ends of the bottom of the first dehydration chamber are connected to the collection box by liquid guiding pipes, and a condensation box is located at the top of one side of the tower body.
[0004] However, existing condensation devices for n-propyl acetate production also have certain shortcomings. Although these devices utilize a combination of components such as a refrigerator, coolant, and condenser tubes to condense n-propyl acetate vapor, the poor flow rate of the coolant inside the refrigeration chamber easily leads to poor cooling efficiency of the subsequent refrigerator. Therefore, improvements are needed. Utility Model Content
[0005] This invention provides a condensation device for the production of n-propyl acetate, which solves the problem that although existing condensation devices for the production of n-propyl acetate use a combination of components such as a refrigerator, coolant, and condenser to condense n-propyl acetate vapor, the poor flow rate of the coolant inside the refrigeration chamber results in poor cooling efficiency of the subsequent refrigerator.
[0006] To solve the above-mentioned technical problems, this utility model provides a condensation device for the production of n-propyl acetate, including a condensation box. A drain pipe is fixedly connected to the inner wall of the condensation box. A support rib is fixedly connected to the left end of the condensation box. A refrigeration box is fixedly connected to the upper end of the support rib. A steam inlet pipe is fixedly connected to the inner wall of the condensation box. An exhaust pipe is fixedly connected to the upper end of the steam inlet pipe. A refrigeration mechanism is jointly provided on the condensation box and the refrigeration box. A flow ring is fixedly connected to the inner wall of the steam inlet pipe. A fixing plate is fixedly connected to the inner wall of the steam inlet pipe and located to the left of the flow ring. A telescopic rod is slidably connected to the inner wall of the fixing plate. A plug is fixedly sleeved on the outer side of the telescopic rod. The plug is slidably connected to the flow ring. A spring is provided on the outer side of the telescopic rod.
[0007] Preferably, the surface of the exhaust pipe is provided with multiple injection holes, which are evenly distributed on the exhaust pipe. By setting the injection holes, n-propyl acetate vapor can be injected for use.
[0008] Preferably, a limiting plate is fixedly connected to the left end of the telescopic rod. The limiting plate is in contact with the fixing plate. The limiting plate can limit the position of the plug.
[0009] Preferably, one end of the spring is fixedly connected to the plug, and the other end of the spring is fixedly connected to the fixing plate. The plug can be tightened by the spring.
[0010] Preferably, the refrigeration mechanism includes a cooling coil, the inner wall of the condenser is fixedly connected to the cooling coil, the cooling coil is fixedly connected to the refrigeration box, a delivery pump is fixedly installed at the bottom inner side of the refrigeration box, a delivery pipe is fixedly connected to the left side of the delivery pump, a connecting pipe on the right side of the delivery pump is fixedly connected to the cooling coil, a servo motor is fixedly installed at the upper end of the refrigeration box, the output shaft of the servo motor is rotatably connected to the box cover of the refrigeration box, a stirring paddle is fixedly connected to the output shaft of the servo motor, a second spring is fixedly connected to the inner wall of the refrigeration box, a driven plate is fixedly connected to the other end of the second spring, and a cooler is provided on the inner side wall of the refrigeration box. Through the action of the servo motor, the stirring paddle and other structures, the coolant can be stirred for use. Under the action of the second spring, the driven plate and other structures, the coolant can be auxiliaryly stirred to improve the subsequent refrigeration efficiency.
[0011] Preferably, four agitators are provided, and the four agitators are arranged in a circular array on the output shaft of the servo motor. By setting the agitators, the coolant can be quickly stirred.
[0012] Preferably, a protrusion is fixedly connected to the end face of the stirring paddle. The protrusion contacts the stirring paddle, and the driven plate can be squeezed by the protrusion.
[0013] Compared with related technologies, the condensation device for the production of n-propyl acetate provided by this utility model has the following beneficial effects:
[0014] This utility model provides a condensation device for the production of n-propyl acetate. Through the setting of structures such as the steam inlet pipe, n-propyl acetate vapor can be transported and used. Under the impact of n-propyl acetate vapor, the plug can drive the telescopic rod to move, so that the flow ring is in an automatic opening state, thereby ensuring the normal flow of n-propyl acetate vapor. In addition, under the action of structures such as the spring and the limiting plate, the plug can seal the flow ring to avoid the problem of backflow of n-propyl acetate vapor.
[0015] This utility model provides a condensation device for the production of n-propyl acetate. Through the action of a refrigerator, a delivery pump, and a cooling coil, the coolant can be circulated and transported. With the structure of a servo motor and a stirring paddle, the coolant can be quickly stirred. With the action of a spring and a driven plate, the coolant can be auxiliary stirred to accelerate the flow rate of the coolant and thus improve the cooling effect of the refrigerator. Attached Figure Description
[0016] Figure 1 This is a perspective view of the overall structure of this utility model;
[0017] Figure 2 This utility model Figure 1 A schematic diagram of the internal structure of the refrigeration box;
[0018] Figure 3 This utility model Figure 1 A schematic diagram of the internal structure of the condenser box;
[0019] Figure 4 This utility model Figure 1 A schematic diagram of the internal structure of the steam inlet pipe;
[0020] Figure 5 This utility model Figure 4 Enlarged view of the steam inlet pipe.
[0021] In the diagram: 1. Condenser; 2. Drain pipe; 3. Support rib; 4. Refrigeration box; 5. Steam inlet pipe; 6. Steam outlet pipe; 7. Refrigeration mechanism; 8. Flow ring; 9. Fixing plate; 10. Telescopic rod; 11. Limiting plate; 12. Plug; 13. Spring 1; 70. Cooling coil; 71. Transfer pump; 72. Transfer pipe; 73. Servo motor; 74. Agitator; 75. Spring 2; 76. Driven plate; 77. Protrusion; 78. Refrigerator. Detailed Implementation
[0022] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 A condensing device for the production of n-propyl acetate includes a condensing box 1. A drain pipe 2 is fixedly connected to the inner wall of the condensing box 1. A support rib 3 is fixedly connected to the left end of the condensing box 1. A refrigeration box 4 is fixedly connected to the upper end of the support rib 3. A steam inlet pipe 5 is fixedly connected to the inner wall of the condensing box 1. A steam exhaust pipe 6 is fixedly connected to the upper end of the steam inlet pipe 5. A flow ring 8 is fixedly connected to the inner wall of the steam inlet pipe 5 and to the left of the flow ring 8. A telescopic rod 10 is slidably connected to the inner wall of the fixed rod 9. A plug 12 is fixedly sleeved on the outer side of the telescopic rod 10. The plug 12 is slidably connected to the flow ring 8. A spring 13 is provided on the outer side of the telescopic rod 10.
[0023] Please see Figure 1 , Figure 2 , Figure 3 , Figure 5 Multiple injection holes are evenly distributed on the surface of the exhaust pipe 6. The injection holes allow for the injection of n-propyl acetate vapor. The left end of the telescopic rod 10 is fixedly connected to a limiting plate 11, which contacts the fixing plate 9. The limiting plate 11 limits the position of the plug 12. One end of the spring 13 is fixedly connected to the plug 12, and the other end of the spring 13 is fixedly connected to the fixing plate 9. The spring 13 tightens the plug 12.
[0024] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 The condenser 1 and the refrigeration box 4 are both equipped with a refrigeration mechanism 7, which includes a cooling coil 70. The cooling coil 70 is fixedly connected to the inner wall of the condenser 1 and is fixedly connected to the refrigeration box 4. A delivery pump 71 is fixedly installed on the bottom inner side of the refrigeration box 4. A delivery pipe 72 is fixedly connected to the left side of the delivery pump 71, and a connecting pipe on the right side of the delivery pump 71 is fixedly connected to the cooling coil 70. A servo motor 73 is fixedly installed at the upper end of the refrigeration box 4. The output shaft of the servo motor 73 is rotatably connected to the box cover of the refrigeration box 4. A stirring paddle 74 is fixedly connected to the output shaft of the servo motor 73. A second spring 75 is fixedly connected to the inner wall of the refrigeration box 4, and a driven plate 76 is fixedly connected to the other end of the second spring 75. A cooler 78 is provided on the inner wall of the refrigeration box 4. Through the action of the servo motor 73, the stirring paddle 74, and other structures, the coolant can be stirred. Under the action of the second spring 75, the driven plate 76, and other structures, the coolant can be agitated to improve the subsequent refrigeration efficiency.
[0025] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4There are four agitators 74, which are arranged in a ring array on the output shaft of the servo motor 73. The agitators 74 can be used to quickly agitate the coolant. The end face of the agitator 74 is fixedly connected to a protrusion 77, which contacts the agitator 74. The protrusion 77 can be used to squeeze the driven plate 76.
[0026] Working principle: During use, the steam inlet pipe 5 can be used to transport n-propyl acetate vapor. Under the impact of the n-propyl acetate vapor, the plug 12 can be pushed to the left and the telescopic rod 10 can be driven to slide along the inner wall of the fixed plate 9, so that the limiting plate 11 is disengaged from the fixed plate 9 and the spring 13 is deformed. Finally, the plug 12 is disengaged from the flow ring 8, and the n-propyl acetate vapor can be used. Under the action of the exhaust pipe 6, the n-propyl acetate vapor can be sprayed evenly, and with the action of the cooling coil 70, the n-propyl acetate vapor can be condensed.
[0027] The coolant is cooled by the refrigerator 78. The coolant is circulated in the cooling coil 70 by the pump 71 and the pipe 72 to ensure good condensation. When the servo motor 73 drives the output shaft to rotate, it drives the agitator 74 to rotate, which in turn causes the cam 77 to rotate. When the cam 77 squeezes the driven plate 76, it pushes the driven plate 76 to move, causing the spring 75 to deform. When the cam 77 disengages from the driven plate 76, the spring 75 returns to its original shape, causing the driven plate 76 to move back to its original position. This cycle repeats, causing the driven plate 76 to vibrate back and forth, increasing the flow rate of the coolant and thus ensuring good cooling effect.
Claims
1. A condensation apparatus for the production of n-propyl acetate, comprising a condensation chamber (1), characterized in that: The inner wall of the condenser (1) is fixedly connected to a drain pipe (2), the left end of the condenser (1) is fixedly connected to a support rib (3), the upper end of the support rib (3) is fixedly connected to a refrigeration box (4), the inner wall of the condenser (1) is fixedly connected to a steam inlet pipe (5), the upper end of the steam inlet pipe (5) is fixedly connected to a steam exhaust pipe (6), the condenser (1) and the refrigeration box (4) are jointly provided with a refrigeration mechanism (7), the inner wall of the steam inlet pipe (5) is fixedly connected to a flow ring (8), the inner wall of the steam inlet pipe (5) and located on the left side of the flow ring (8) is fixedly connected to a fixing plate (9), the inner wall of the fixing plate (9) is slidably connected to a telescopic rod (10), the outer side of the telescopic rod (10) is fixedly sleeved with a plug (12), the plug (12) is slidably connected to the flow ring (8), and the outer side of the telescopic rod (10) is provided with a spring (13).
2. A condensation apparatus for the production of n-propyl acetate according to claim 1, characterized in that: The surface of the exhaust pipe (6) is provided with a plurality of injection holes, which are evenly distributed on the exhaust pipe (6).
3. A condensation apparatus for the production of n-propyl acetate according to claim 1, characterized in that: The left end of the telescopic rod (10) is fixedly connected to a limiting plate (11), and the limiting plate (11) is in contact with the fixing plate (9).
4. A condensation apparatus for the production of n-propyl acetate according to claim 1, characterized in that: One end of the spring (13) is fixedly connected to the plug (12), and the other end of the spring (13) is fixedly connected to the fixing piece (9).
5. A condensation apparatus for the production of n-propyl acetate according to claim 1, characterized in that: The refrigeration mechanism (7) includes a cooling coil (70). The inner wall of the condenser (1) is fixedly connected to the cooling coil (70). The cooling coil (70) is fixedly connected to the refrigeration box (4). A delivery pump (71) is fixedly installed on the bottom inner side of the refrigeration box (4). A delivery pipe (72) is fixedly connected to the left side of the delivery pump (71). A connecting pipe on the right side of the delivery pump (71) is fixedly connected to the cooling coil (70). A servo motor (73) is fixedly installed at the upper end of the refrigeration box (4). The output shaft of the servo motor (73) is rotatably connected to the box cover of the refrigeration box (4). A stirring paddle (74) is fixedly connected to the output shaft of the servo motor (73). A second spring (75) is fixedly connected to the inner wall of the refrigeration box (4). A driven plate (76) is fixedly connected to the other end of the second spring (75). A refrigerator (78) is provided on the inner side wall of the refrigeration box (4).
6. A condensation apparatus for the production of n-propyl acetate according to claim 5, characterized in that: Four stirring paddles (74) are provided, and the four stirring paddles (74) are arranged in a ring array on the output shaft of the servo motor (73).
7. A condensation apparatus for the production of n-propyl acetate according to claim 5, characterized in that: A protrusion (77) is fixedly connected to the end face of the stirring paddle (74), and the protrusion (77) is in contact with the stirring paddle (74).