A naphtha distillation post-condensation device
By designing a structure that facilitates easy disassembly, the problem of difficulty in replacing damaged condenser tubes has been solved, enabling rapid replacement of condenser tubes, reducing maintenance costs, and improving the efficiency of the device.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG MINGCHENG PETROCHEMICAL CO LTD
- Filing Date
- 2025-07-30
- Publication Date
- 2026-07-03
AI Technical Summary
In existing naphtha distillation condenser units, it is difficult to replace the condenser tubes individually after they are damaged, resulting in the replacement of the entire unit, which increases costs and wastes materials.
A device was designed that includes a cooling box, a box cover, a condenser tube, an air inlet pipe, a liquid outlet pipe, a disassembly structure, and a cooling structure. The condenser tube can be easily disassembled and replaced through the cooperation of a threaded rod and a U-shaped block.
This enables rapid replacement of condenser tubes, reduces maintenance costs, and improves the efficiency and material utilization of the equipment.
Smart Images

Figure CN224442213U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of condensation technology, and in particular to a naphtha distillation post-condensation device. Background Technology
[0002] The naphtha distillation post-condensation unit is a device used in the naphtha distillation process to condense the gas after distillation.
[0003] Application number "CN202322535891.8" describes a utility model of a naphtha distillation condenser. This utility model allows the reaction tube (condenser) to fully contact the cooling water. However, the condenser may be damaged under long-term alternating hot and cold conditions, requiring replacement. The reaction tube (condenser) in this utility model's condenser is difficult to replace. Once damaged, the entire device needs to be replaced, increasing condensation costs and wasting some intact condenser materials. Utility Model Content
[0004] The purpose of this invention is to provide a naphtha distillation condenser that overcomes the difficulty of replacing the condenser tubes in condenser devices.
[0005] To achieve the above objectives, a naphtha distillation post-condensation device is provided, comprising a cooling box, a box cover movably connected to the upper side of the cooling box, a condenser tube disposed inside the cooling box, and two circular holes provided on the upper side of the box cover. An air inlet pipe is disposed inside the left circular hole, and a liquid outlet pipe is disposed inside the right circular hole. The condenser tube is configured with a spiral structure, and a disassembly structure and a cooling structure are provided between the box cover and the cooling box.
[0006] The disassembly structure includes a U-shaped groove located on the upper side of the cooling box. A U-shaped block is installed inside the U-shaped groove. Circular grooves are formed on the front and rear sides of the cooling box, and circular holes are formed on the front and rear sides of the U-shaped block. Threaded rods are installed inside the circular grooves and holes, and a control block is fixedly connected to the outer end of the threaded rods. This facilitates the replacement of the condenser tubes by the operator.
[0007] According to the naphtha distillation condenser described above, the inlet pipe and the tank cover are slidably connected, and the inlet pipe and the condenser pipe are movably connected. This facilitates the sliding of the inlet pipe.
[0008] According to the naphtha distillation condenser described above, the liquid outlet pipe and the tank cover are slidably connected, and the liquid outlet pipe and the condenser pipe are movably connected. This facilitates the sliding of the liquid outlet pipe.
[0009] According to the naphtha distillation post-condensation device, the U-shaped block and the cooling box are slidably connected, and the upper side of the U-shaped block is fixedly connected to the box cover. This facilitates the sliding of the U-shaped block.
[0010] According to the naphtha distillation post-condensation device, the threaded rod is threadedly connected to the cooling box, and the threaded rod is also threadedly connected to the U-shaped block. This facilitates the rotation of the threaded rod.
[0011] According to the naphtha distillation post-condensation device, the cooling structure includes a water pump fixedly connected to the left side of the cooling tank. A coolant tank is fixedly connected to the left side of the cooling tank. A first pipe is fixedly connected between the water pump and the coolant tank, a second pipe is fixedly connected between the coolant tank and the cooling tank, and a third pipe is fixedly connected between the water pump and the tank cover. This facilitates the condensation of high-temperature gases.
[0012] According to the naphtha distillation post-condensation device, a spring is provided between the condenser tube and the bottom side of the cooling tank. The lower end of the spring is fixedly connected to the cooling tank, and the upper end of the spring is fixedly connected to a compression plate. This facilitates buffering of the condenser tube.
[0013] According to the naphtha distillation post-condensation device, the extrusion plate and the condenser tube are movably connected, and the spring and the outer side of the extrusion plate are provided with waterproof material. This facilitates the movable connection of the extrusion plate.
[0014] This utility model has the following beneficial effects: Compared with the prior art, the design of the cooling box, box cover, condenser tube, air inlet pipe, liquid outlet pipe, disassembly structure, and cooling structure allows the high-temperature gas generated after naphtha distillation to not only fully contact and exchange heat with the coolant, but also allows the condenser tube to be disassembled and replaced when damaged, saving time and effort, and making it convenient and quick. Attached Figure Description
[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments;
[0016] Figure 1 This is a front view of the overall structure of the naphtha distillation condensation device of this utility model;
[0017] Figure 2 This is a schematic diagram of a portion of the structure of a naphtha distillation condensation device according to the present invention.
[0018] Figure 3 This is a schematic diagram of the structure of the tank cover of a naphtha distillation condenser according to the present invention;
[0019] Figure 4 This is a schematic diagram of the spring and extrusion plate in a naphtha distillation condenser according to the present invention.
[0020] Legend:
[0021] 1. Cooling tank; 2. Tank cover; 3. Condenser tube; 4. Circular hole; 5. Air inlet pipe; 6. Liquid outlet pipe; 7. Disassembly structure; 701. U-shaped groove; 702. U-shaped block; 703. Circular groove; 704. Circular hole; 705. Threaded rod; 706. Control block; 8. Cooling structure; 801. Water pump; 802. Coolant tank; 803. Pipe 1; 804. Pipe 2; 805. Pipe 3; 9. Spring; 10. Extrusion plate. Detailed Implementation
[0022] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.
[0023] Reference Figure 1-4 This utility model discloses a naphtha distillation post-condensation device, comprising a cooling box 1, a box cover 2 movably connected to the upper side of the cooling box 1, a condenser tube 3 disposed inside the cooling box 1, and two circular holes 4 on the upper side of the box cover 2. An air inlet pipe 5 is disposed inside the left circular hole 4, and a liquid outlet pipe 6 is disposed inside the right circular hole 4. The condenser tube 3 is configured with a spiral structure. A disassembly structure 7 and a cooling structure 8 are provided between the box cover 2 and the cooling box 1. The air inlet pipe 5 is slidably connected to the box cover 2, and movably connected to the condenser tube 3. The liquid outlet pipe 6 is slidably connected to the box cover 2, and movably connected to the condenser tube 3. A spring 9 is disposed between the condenser tube 3 and the bottom side inside the cooling box 1. The lower end of the spring 9 is fixedly connected to the cooling box 1, and the upper end of the spring 9 is fixedly connected to a pressing plate 10. The pressing plate 10 is movably connected to the condenser tube 3. Waterproof material is disposed on the outer side of the spring 9 and the pressing plate 10.
[0024] The disassembly structure 7 includes a spiral groove 701, which is formed on the upper side of the cooling box 1. A spiral block 702 is provided inside the spiral groove 701. Circular grooves 703 are formed on the front and rear sides of the cooling box 1. Circular holes 704 are formed on the front and rear sides of the spiral block 702. Threaded rods 705 are provided inside the circular grooves 703 and the circular holes 704. A control block 706 is fixedly connected to the outer end of the threaded rod 705. The spiral block 702 is slidably connected to the cooling box 1. The upper side of the spiral block 702 is fixedly connected to the box cover 2. The threaded rod 705 is threadedly connected to the cooling box 1 and the spiral block 702.
[0025] The cooling structure 8 includes a water pump 801, which is fixedly connected to the left side of the cooling tank 1. A coolant tank 802 is fixedly connected to the left side of the cooling tank 1. A pipe 803 is fixedly connected between the water pump 801 and the coolant tank 802. A pipe 804 is fixedly connected between the coolant tank 802 and the cooling tank 1. A pipe 805 is fixedly connected between the water pump 801 and the tank cover 2.
[0026] The PLC controller and water pump 801 are electrically connected to facilitate the operation of the control components. When the condenser tube 3 is subjected to prolonged hot and cold cycles, it will be damaged, reducing its lifespan and requiring replacement. Once the liquid inside the condenser tube 3 is cleaned, the operator holds the control block 706 and rotates the threaded rod 705 to create the circular groove 703 and circular hole 704. Then, the operator holds the cover 2 and moves it, causing the cover 2 to slide out of the circular groove 701 along with the loop block 702. Simultaneously, the air inlet pipe 5 and liquid outlet pipe 6 open into the two circular holes 4 on the left and right. Afterwards, the operator removes the air inlet pipe 5 and liquid outlet pipe 6, removes the condenser tube 3, and then disassembles the air inlet pipe 5 and liquid outlet pipe 6, replacing them with new ones and reconnecting them to the air inlet. The condenser tube 3 of pipe 5 and liquid outlet pipe 6 is used. Then, the new condenser tube 3 is placed into the cooling box 1. Then, the box cover 2, along with the loop block 702, slides into the loop groove 701. At the same time, the air inlet pipe 5 and liquid outlet pipe 6 are slid into the circular holes 4 on the left and right sides respectively. Then, hold the control block 706 and rotate the threaded rod 705 into the circular hole 704 and the circular groove 703. The setting of cooling box 1, box cover 2, condenser tube 3, air inlet pipe 5, liquid outlet pipe 6, disassembly structure 7, and cooling structure 8 allows the high-temperature gas generated after naphtha distillation to not only fully contact and exchange heat with the coolant, but also allows the condenser tube 3 to be disassembled and replaced when damaged, saving time and effort and making it convenient and quick.
[0027] Working principle: The operator connects the inlet pipe 5 of the device to the naphtha distillation equipment and starts the water pump 801. The water pump 801 draws water from the coolant tank 802 into the tank cover 2 through pipe 1 803 and pipe 3 805, and finally into the cooling tank 1. The valve on the outside of pipe 2 804 (not shown in the figure) is closed. The cooling tank 1 is made of transparent material. When the coolant reaches half the height of the cooling tank 1, the valve on the outside of pipe 2 804 is opened, allowing the water to flow back into the coolant tank 802. The speed at which the water pump 801 draws coolant into the cooling tank 1 is greater than the speed at which the coolant flows back into the cooling tank 1. Then, the high-temperature gas generated after naphtha distillation enters the inlet pipe 5, and so on. The high-temperature gas in the spiral-shaped condenser tube 3 is allowed to fully contact the coolant, causing the high-temperature gas to turn into liquid. When the liquid accumulates more than halfway in the condenser tube 3, the liquid outlet pipe 6 is then connected to an external oil pump. The oil pump stores the naphtha distilled liquid formed inside the condenser tube 3. The entire condensation device can be tilted to facilitate the oil pump to extract the naphtha distilled liquid for further processing. During the condensation process of the high-temperature gas generated after naphtha distillation, the inlet pipe 5 and the liquid outlet pipe 6 may vibrate, causing the condenser tube 3 to vibrate. At this time, the vibration of the condenser tube 3 will push the squeeze plate 10, which will compress the spring 9 to reduce the force on the condenser tube 3 and protect the condenser tube 3 from vibration damage.
[0028] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.
Claims
1. A naphtha rectification post condensing apparatus characterized by, Includes a cooling box (1), with a lid (2) movably connected to the upper side of the cooling box (1), a condenser pipe (3) installed inside the cooling box (1), and a circular hole (4) opened on the upper side of the lid (2). There are two circular holes (4). An air inlet pipe (5) is installed inside the left circular hole (4), and a liquid outlet pipe (6) is installed inside the right circular hole (4). The condenser pipe (3) is configured as a spiral structure. A disassembly structure (7) and a cooling structure (8) are provided between the lid (2) and the cooling box (1). The disassembly structure (7) includes a spiral groove (701), which is opened on the upper side of the cooling box (1). A spiral block (702) is provided inside the spiral groove (701). Circular grooves (703) are opened on the front and rear sides of the cooling box (1). Circular holes (704) are opened on the front and rear sides of the spiral block (702). Threaded rods (705) are provided inside the circular grooves (703) and the circular holes (704). A control block (706) is fixedly connected to the outer end of the threaded rod (705).
2. The naphtha rectification condenser according to claim 1, wherein, The intake pipe (5) and the cover (2) are slidably connected, and the intake pipe (5) and the condenser pipe (3) are movably connected.
3. The naphtha rectification condenser according to claim 1, wherein, The liquid outlet pipe (6) and the box cover (2) are slidably connected, and the liquid outlet pipe (6) and the condenser pipe (3) are movably connected.
4. The naphtha rectification condenser of claim 1, wherein, The herringbone block (702) and the cooling box (1) are slidably connected, and the upper side of the herringbone block (702) is fixedly connected to the box cover (2).
5. The naphtha distillation post-condensation apparatus according to claim 1, characterized in that, The threaded rod (705) is threadedly connected to the cooling box (1), and the threaded rod (705) is threadedly connected to the spiral block (702).
6. The naphtha rectification condenser of claim 1, wherein, The cooling structure (8) includes a water pump (801), which is fixedly connected to the left side of the cooling tank (1). A coolant tank (802) is fixedly connected to the left side of the cooling tank (1). A pipe (803) is fixedly connected between the water pump (801) and the coolant tank (802). A pipe (804) is fixedly connected between the coolant tank (802) and the cooling tank (1). A pipe (805) is fixedly connected between the water pump (801) and the tank cover (2).
7. The apparatus according to claim 6, wherein A spring (9) is provided between the condenser tube (3) and the bottom side inside the cooling box (1). The lower end of the spring (9) is fixedly connected to the cooling box (1), and the upper end of the spring (9) is fixedly connected to the extrusion plate (10).
8. The apparatus according to claim 7, wherein The extrusion plate (10) and the condenser tube (3) are movably connected, and the spring (9) and the outer side of the extrusion plate (10) are provided with waterproof material.