Double-pipe type water-cooling condenser pipe

Abstract

The utility model discloses a double-pipe type water cooling condenser pipe which comprises a liquid containing disc and a condensing box, a plurality of spiral condenser pipes are arranged in the condensing box, liquid inlets in the upper ends of the spiral condenser pipes extend into the liquid containing disc, liquid outlets in the lower ends of the spiral condenser pipes extend to the outer side of the lower end of the condensing box, and inner cooling pipes are arranged in the spiral condenser pipes. A gap is reserved between the inner cooling pipe and the spiral condensation pipe, an inner cooling liquid inlet pipe, an outer water injection pipe, an outer water outlet pipe and an inner cooling liquid outlet pipe are arranged on the outer side of the condensation box from top to bottom, the outer water injection pipe and the outer water outlet pipe are communicated with the interior of the condensation box, and the upper end of the inner cooling liquid inlet pipe is communicated with the upper end of the inner cooling pipe. The inner cooling liquid outlet pipe is communicated with the lower end of the inner cooling pipe. By arranging the spiral condensation pipe and the inner cooling pipe, a double-pipe type water cooling structure can be formed, so that a saturated sodium sulfate solution flowing through the spiral condensation pipe can be rapidly cooled, compared with the prior art, the sodium sulfate crystal precipitation speed is greatly increased, and the working efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of condenser tube technology, specifically a dual-tube water-cooled condenser tube. Background Technology

[0002] Pharmaceutical intermediates are intermediate chemicals produced during the synthesis of chemical drugs and belong to fine chemical products. They are basic chemical raw materials required for the production of pharmaceuticals, but they are the most basic and bottom-end products in the pharmaceutical production chain and have not yet reached the standards of pharmaceuticals. Therefore, they do not require GMP (Good Manufacturing Practice) certification.

[0003] A search revealed CN218871311U, which discloses a device for extracting and separating pharmaceutical intermediates. The device includes an extraction tank, a concentration tank, and a circulation pump. The extraction tank has an inlet at the top, a separation outlet at the bottom, and an outlet on the bottom side wall. The outlet is connected to the inlet of the concentration tank, which is connected to the inlet via a circulation pump and a circulation pipe. The inlet is also connected to an inlet pipe. Inside the extraction tank, from top to bottom, are a liquid loading tray, a condensation chamber, and a separation cylinder. The bottom of the liquid loading tray has several evenly distributed liquid-feeding condenser pipes. This invention can extract sodium sulfate through condensation and crystallization, and then concentrate and circulate the extracted solution to improve the extraction rate of sodium sulfate. Furthermore, the structural design of the extraction tank allows for continuous production, resulting in high production efficiency.

[0004] The saturated sodium sulfate solution flows from the liquid tray through the lower liquid condenser tube into the condensing chamber for condensation, causing sodium sulfate crystals in the solution to condense and precipitate. However, the condensation effect of the lower liquid condenser tube is poor, resulting in low precipitation efficiency of sodium sulfate crystals, which needs to be improved. Utility Model Content

[0005] The purpose of this invention is to provide a dual-tube water-cooled condenser tube to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a dual-tube water-cooled condenser tube, comprising a liquid loading tray and a condenser box. The condenser box contains multiple spiral condenser tubes, with the upper inlet of each spiral condenser tube extending into the liquid loading tray and the lower outlet extending to the outer side of the lower end of the condenser box. An internal cooling pipe is installed inside each spiral condenser tube, with a gap between the internal cooling pipe and the spiral condenser tube. From top to bottom, the outer side of the condenser box is provided with an internal cooling inlet pipe, an external water injection pipe, an external water outlet pipe, and an internal cooling outlet pipe. The external water injection pipe and the external water outlet pipe are interconnected with the interior of the condenser box. The upper ends of the internal cooling inlet pipe and the internal cooling pipe are interconnected, and the lower ends of the internal cooling outlet pipe and the internal cooling pipe are interconnected.

[0007] Preferably, the internal cooling inlet pipe, the internal cooling pipe, and the internal cooling outlet pipe are integrally formed pipe structures.

[0008] Preferably, the number of spiral condenser tubes is four, and the four spiral condenser tubes are arranged in a ring array inside the condenser box.

[0009] Preferably, an annular input main pipe is provided at the upper outer side of the condenser, and an annular output main pipe is provided at the lower outer side of the condenser. Furthermore, multiple internal cooling liquid inlet pipes are interconnected with the annular input main pipe, and multiple internal cooling liquid outlet pipes are interconnected with the annular output main pipe.

[0010] Preferably, the outer surface of the internal cooling pipe is fixedly connected with multiple cooling ribs in a ring array.

[0011] Preferably, an elastic tube is provided between the spiral condenser tube and the inner cooling tube. The upper and lower ends of the elastic tube are fixedly connected to the inner wall of the spiral condenser tube, and an annular storage cavity is formed between the elastic tube and the spiral condenser tube. The outer surface of the spiral condenser tube is provided with inlet and outlet water holes that communicate with the annular storage cavity.

[0012] Preferably, there are multiple inlet and outlet water holes, which are equidistantly distributed on the outer surface of the spiral condenser tube.

[0013] Beneficial effects

[0014] This utility model provides a dual-tube water-cooled condenser tube, which has the following beneficial effects:

[0015] 1. This dual-tube water-cooled condenser tube, by setting up a spiral condenser tube and an internal cooling tube, can form a dual-tube water-cooling structure, thereby rapidly cooling the saturated sodium sulfate solution flowing through the spiral condenser tube. Compared with the existing technology, it greatly improves the precipitation rate of sodium sulfate crystals and improves working efficiency.

[0016] 2. This dual-tube water-cooled condenser tube, by setting up an elastic tube, an annular storage chamber, and inlet and outlet water holes, can change the water pressure in the condenser box by changing the water injection pressure of the external water injection pipe and the water outlet pressure of the external water outlet pipe. When the water pressure entering the annular storage chamber from the inlet water pipe changes, the elastic tube will continuously expand and contract. By utilizing the continuous expansion and contraction of the elastic tube, the solution and crystals inside the spiral condenser tube can be squeezed out, thereby effectively preventing the solution and crystals from remaining inside the spiral condenser tube. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a dual-tube water-cooled condenser tube proposed in this utility model.

[0018] Figure 2 This is a cross-sectional three-dimensional structural diagram of a dual-tube water-cooled condenser tube proposed in this utility model;

[0019] Figure 3 This is a three-dimensional structural diagram of a spiral condenser tube with a dual-tube water-cooled condenser tube proposed in this utility model.

[0020] Figure 4 This is a cross-sectional view of a spiral condenser tube of a double-tube water-cooled condenser tube proposed in this utility model.

[0021] Figure 5 This utility model proposes a dual-tube water-cooled condenser tube. Figure 4 A schematic diagram of the enlarged structure of A.

[0022] In the diagram: 1. Liquid tray; 2. Condenser; 3. Spiral condenser tube; 4. Upper liquid inlet; 5. Lower liquid outlet; 6. Internal cooling pipe; 7. Internal cooling liquid inlet pipe; 8. External water inlet pipe; 9. External water outlet pipe; 10. Internal cooling liquid outlet pipe; 11. Annular input main pipe; 12. Annular output main pipe; 13. Cooling fins; 14. Flexible tube; 15. Annular storage chamber; 16. Water inlet and outlet holes. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-5 This utility model provides a technical solution: a dual-tube water-cooled condenser tube, including a liquid-filling tray 1 and a condenser box 2. Multiple spiral condenser tubes 3 are arranged inside the condenser box 2, with the upper liquid inlet 4 of each spiral condenser tube 3 extending into the liquid-filling tray 1 and the lower liquid outlet 5 extending to the lower outer side of the condenser box 2. An internal cooling pipe 6 is arranged inside each spiral condenser tube 3, with a gap between the internal cooling pipe 6 and the spiral condenser tubes 3. Internal cooling liquid inlet pipes 7 are arranged from top to bottom on the outer side of the condenser box 2. The external water inlet pipe 8, the external water outlet pipe 9, and the internal cooling outlet pipe 10 are all interconnected with the interior of the condenser 2. The internal cooling inlet pipe 7 and the upper end of the internal cooling pipe 6 are interconnected, and the lower end of the internal cooling outlet pipe 10 and the internal cooling pipe 6 are interconnected. By setting the spiral condenser pipe 3 and the internal cooling pipe 6, a dual-pipe water cooling structure can be formed, which can rapidly cool the saturated sodium sulfate solution flowing through the spiral condenser pipe 3. Compared with the existing technology, this greatly improves the precipitation rate of sodium sulfate crystals and improves working efficiency.

[0025] The internal cooling inlet pipe 7, internal cooling pipe 6, and internal cooling outlet pipe 10 are integrally formed pipe structures, which can improve efficiency.

[0026] There are four spiral condenser tubes 3, and the four spiral condenser tubes 3 are arranged in a ring array inside the condenser box 2. By setting four spiral condenser tubes 3 arranged in a ring array, the spiral condenser tubes 3 can better contact the cooling water in the condenser box 2, thereby improving the condensation effect.

[0027] An annular inlet manifold 11 is provided at the upper outer side of the condenser 2, and an annular outlet manifold 12 is provided at the lower outer side of the condenser 2. Multiple internal cooling liquid inlet pipes 7 are interconnected with the annular inlet manifold 11, and multiple internal cooling liquid outlet pipes 10 are interconnected with the annular outlet manifold 12. By setting the annular inlet manifold 11, water can be supplied to the four internal cooling liquid inlet pipes 7 at the same time. By setting the annular outlet manifold 12, it is convenient for the four internal cooling liquid outlet pipes 10 to drain water at the same time.

[0028] The outer surface of the internal cooling pipe 6 is fixedly connected with multiple cooling ribs 13 in a ring array. By setting the cooling ribs 13, heat dissipation can be achieved by using the cooling ribs 13, which can further improve the precipitation rate of sodium sulfate crystals.

[0029] An elastic tube 14 is provided between the spiral condenser tube 3 and the inner cooling tube 6. The upper and lower ends of the elastic tube 14 are fixedly connected to the inner wall of the spiral condenser tube 3, and an annular storage cavity 15 is formed between the elastic tube 14 and the spiral condenser tube 3. The outer surface of the spiral condenser tube 3 is provided with inlet and outlet water holes 16 that communicate with the annular storage cavity 15. By setting the elastic tube 14, the annular storage cavity 15 and the inlet and outlet water holes 16, the water pressure in the condenser box 2 can be changed by changing the water injection pressure of the external water injection pipe 8 and the water outlet pressure of the external water outlet pipe 9. When the water pressure entering the annular storage cavity 15 from the inlet and outlet water holes 16 changes, the elastic tube 14 will continuously expand and contract. By using the continuous expansion and contraction of the elastic tube 14, the solution and crystals in the spiral condenser tube 3 can be squeezed out, thereby effectively preventing the solution and crystals from remaining in the spiral condenser tube 3.

[0030] Furthermore, the cooling ribs 13 effectively prevent the elastic tube 14 from contacting the internal cooling tube 6, thus ensuring unobstructed pipe flow.

[0031] There are multiple water inlet and outlet holes 16, which are evenly distributed on the outer surface of the spiral condenser tube 3. By setting multiple water inlet and outlet holes 16, the cooling water in the annular storage cavity 15 can be easily introduced and discharged.

[0032] Working principle: When the dual-tube water-cooled condenser is in use, water is first injected into the condenser tank 2 through the external water inlet pipe 8, and then the water in the condenser tank 2 is drained through the external water outlet pipe 9. Then, cooling water is injected into the internal cooling pipe 6 through the internal cooling inlet pipe 7, and then the cooling water in the internal cooling pipe 6 is drained through the internal cooling outlet pipe 10. The saturated sodium sulfate solution in the liquid tray 1 flows into the spiral condenser tube 3. By setting the spiral condenser tube 3 and the internal cooling pipe 6, a dual-tube water-cooling structure can be formed, which can quickly cool the saturated sodium sulfate solution flowing through the spiral condenser tube 3. Compared with the existing technology, this greatly improves the precipitation rate of sodium sulfate crystals and improves working efficiency.

[0033] The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0034] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A double-tube water-cooled condenser tube comprising a liquid loading tray (1) and a condenser box (2), characterized in that: The inside of the condensing box (2) is provided with a plurality of spiral condensing pipes (3), and the upper end liquid inlet (4) of the spiral condensing pipe (3) extends into the liquid tank (1), the lower end liquid outlet (5) of the spiral condensing pipe (3) extends to the outside of the lower end of the condensing box (2), the inside of the spiral condensing pipe (3) is provided with an inner cooling pipe (6), and a gap is left between the inner cooling pipe (6) and the spiral condensing pipe (3), the outside of the condensing box (2) is provided with an inner cooling liquid inlet pipe (7), an outer water injection pipe (8), an outer water outlet pipe (9) and an inner cooling liquid outlet pipe (10) from top to bottom, respectively, the outer water injection pipe (8) and the outer water outlet pipe (9) are in communication with each other in the inside of the condensing box (2), the inner cooling liquid inlet pipe (7) and the upper end of the inner cooling pipe (6) are in communication with each other, and the inner cooling liquid outlet pipe (10) and the lower end of the inner cooling pipe (6) are in communication with each other.

2. A double-tube water-cooled condenser according to claim 1, characterized in that: The inner cooling liquid inlet pipe (7), the inner cooling pipe (6) and the inner cooling liquid outlet pipe (10) are integrally formed pipe structures.

3. A double-tube water-cooled condenser according to claim 2, characterized in that: The number of the spiral condensing pipes (3) is four, and the four spiral condensing pipes (3) are arranged in a ring array in the inside of the condensing box (2).

4. A double-tube water-cooled condenser according to claim 3, characterized in that: The outside upper end of the condensing box (2) is provided with a ring-shaped input main pipe (11), the outside lower end of the condensing box (2) is provided with a ring-shaped output main pipe (12), and a plurality of inner cooling liquid inlet pipes (7) are in communication with each other in the ring-shaped input main pipe (11), and a plurality of inner cooling liquid outlet pipes (10) are in communication with each other in the ring-shaped output main pipe (12).

5. A double-tube water-cooled condenser according to claim 1, characterized in that: The outer surface of the inner cooling pipe (6) is fixedly connected with a plurality of cooling rib plates (13) in a ring array.

6. A double-tube water-cooled condenser according to claim 5, characterized in that: The spiral condensing pipe (3) and the inner cooling pipe (6) are provided with an elastic pipe (14), the upper end and the lower end of the elastic pipe (14) are fixedly connected with the inner wall of the spiral condensing pipe (3), and the elastic pipe (14) and the spiral condensing pipe (3) form a ring-shaped storage cavity (15), and the outer surface of the spiral condensing pipe (3) is provided with water inlet and outlet holes (16) communicating with the ring-shaped storage cavity (15).

7. A double-tube water-cooled condenser according to claim 6, characterized in that: The number of the water inlet and outlet holes (16) is a plurality, and they are equidistantly distributed on the outer surface of the spiral condensing pipe (3).

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