Condenser for sodium azide

Abstract

The utility model relates to the technical field of condensers, and provides a condenser for sodium azide. The condenser for sodium azide comprises a cylinder body, a condensing assembly, a liquid inlet pipe and a liquid outlet pipe, the upper end and the lower end of the barrel are provided with an air inlet assembly and an exhaust pipe correspondingly. The condensation assembly communicates with the air inlet assembly and the exhaust pipe. The condensation assembly comprises a condensation cylinder, a fixing plate, a condensation pipe and an air inlet pipe. The condensation cylinder, the fixing plates, the condensation pipe and the air inlet pipe form an assembly body, the fixing plates are arranged at the two ends of the condensation cylinder, the condensation cylinder is fixed between the two fixing plates, and the two ends of the condensation pipe penetrate out of the two fixing plates to the outside of the condensation cylinder respectively; the air inlet pipe is connected with the air inlet assembly; the condensation assembly can be directly and integrally taken out to be replaced and maintained, and maintenance is convenient and fast.

Description

Technical Field

[0001] This utility model relates to the field of condenser technology, and in particular to a condenser for sodium azide. Background Technology

[0002] Sodium azide production generates various exhaust gases, such as nitrogen oxides, during the process. These exhaust gases need to be recovered, and a condenser is required to cool them down due to their high temperature.

[0003] CN219815333U discloses a sodium azide tail gas absorption condenser, including a condenser cylinder. A cooling component is installed on the side of the condenser cylinder. The cooling component includes a water outlet pipe, which is fixedly connected to the upper surface of the condenser cylinder. A heat sink is fixedly connected to the outer surface of the water outlet pipe. There are multiple heat sinks. A water storage tank is fixedly connected to the lower end of the water outlet pipe. A fixing plate is fixedly connected to the right side of the water storage tank. A bracket is fixedly connected to the upper surface of the fixing plate. A motor is fixedly connected to the upper surface of the bracket. A fan is fixedly connected to the output shaft of the motor.

[0004] In existing technologies, condensers are prone to scale buildup inside after prolonged use, which affects the cooling effect. Therefore, it is necessary to disassemble, clean, or replace the pipes. However, disassembling and replacing the internal pipes of existing condensers is quite troublesome. At the same time, the condenser shell and internal pipes are prone to deformation due to long-term gas impact, which affects their service life. Utility Model Content

[0005] This invention provides a condenser for sodium azide, solving the problem of difficult-to-clean condenser tubes in the prior art.

[0006] In view of this, the present invention aims to provide a condenser for sodium azide. In the present invention, the condenser includes a cylinder, a condensation assembly disposed in the cylinder, and an inlet pipe and an outlet pipe respectively disposed on both sides of the cylinder.

[0007] The upper and lower ends of the cylinder are respectively provided with an air intake assembly and an exhaust pipe. The air intake assembly is used to transport sodium azide tail gas. The condensation assembly is connected to the air intake assembly and the exhaust pipe.

[0008] The condensation assembly includes a condenser cylinder, a fixed plate, condenser tubes, and an air inlet pipe; the condenser cylinder, fixed plate, condenser tubes, and air inlet pipe form an assembly that can slide in and out of the cylinder; the condenser cylinder is provided with fixed plates at both ends, and the condenser cylinder is fixed between two fixed plates, with the fixed plates slidably connected to the inner wall of the cylinder; multiple condenser tubes are provided and evenly arranged inside the cylinder, with both ends of the condenser tubes extending through two fixed plates to the outside of the condenser cylinder; the air inlet pipe is connected to the air inlet assembly.

[0009] Furthermore, the intake pipe is configured as two pipes, and the condenser cylinder is symmetrically provided with two intake pipes along the tangential direction on its periphery.

[0010] Furthermore, the condenser tube is slidably connected to the fixed plate.

[0011] Furthermore, the air intake assembly is located at one end near the liquid outlet pipe, and the exhaust pipe is located at one end near the liquid inlet pipe.

[0012] Furthermore, the air intake assembly includes a filter cylinder and two air supply pipes. The filter cylinder is connected to the two air supply pipes, and the two air supply pipes are inserted into the interior of the cylinder and connected to the two air intake pipes respectively. A filter unit is provided inside the filter cylinder.

[0013] Furthermore, the filter unit can be inserted into the interior of the filter cylinder from one end of the filter cylinder. The filter unit includes a connecting frame and a filter element. The connecting frame is threadedly connected to one end of the filter cylinder, and the filter element is mounted on the connecting frame.

[0014] Furthermore, the filter cartridge is connected to a pipe connector, which can be connected to an external air pump.

[0015] This utility model discloses a condenser for sodium azide. Through the arrangement of the condensation components, the condenser cylinder, fixing plate, condenser tube, and inlet pipe can be assembled and disassembled as a whole. In subsequent maintenance, when it is necessary to clean the internal pipes of the condenser cylinder, the whole assembly can be directly removed for replacement, without the need to disassemble the condenser tubes one by one, thus improving the efficiency of replacement and maintenance. At the same time, the exhaust gas is symmetrically introduced from both sides along the tangential direction during the intake, making the exhaust gas intake smoother and more stable after entering the condenser cylinder, reducing the turbulence generated when the exhaust gas enters, improving the uniformity of exhaust gas intake, avoiding strong impact of gas on the condenser cylinder and condenser tube, and extending the service life of the condenser cylinder and condenser tube.

[0016] Other features and advantages of this invention will be described in detail in the following detailed description section. Attached Figure Description

[0017] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0018] Figure 1 This is a structural schematic diagram of one embodiment of the present invention;

[0019] Figure 2 This is a cross-sectional schematic diagram of one embodiment of the present invention;

[0020] Figure 3 This is a schematic diagram of the condensation assembly in one embodiment of the present invention;

[0021] Figure 4 This is a schematic diagram of the air intake assembly in one embodiment of the present invention.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Cylinder body; 2. Liquid inlet pipe; 3. Liquid outlet pipe; 4. Exhaust pipe; 5. Filter cylinder; 6. Air supply pipe; 7. Connecting frame; 8. Filter element; 9. Pipe connector; 10. Condenser cylinder; 11. Fixing plate; 12. Condenser pipe; 13. Air inlet pipe. Detailed Implementation

[0024] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this utility model.

[0025] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention 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 invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0026] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of the utility model described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or device that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or devices. "Fixed" or "fixed connection" generally refers to common mechanical connection methods, such as threaded connections, welding, or bonding.

[0027] After prolonged use, scale can easily accumulate inside the condenser, affecting its cooling performance. Therefore, it is necessary to disassemble and clean or replace the pipes. However, disassembling and replacing the internal pipes of existing condensers is quite troublesome. At the same time, the condenser shell and internal pipes are prone to deformation due to long-term gas impact, which affects their service life.

[0028] This invention provides a condenser for sodium azide, such as... Figure 1 and Figure 2 As shown, in this embodiment, the condenser includes a cylinder 1, a condensation assembly, an inlet pipe 2, and an outlet pipe 3. The condensation assembly is located inside the cylinder 1 to cool the sodium azide production tail gas. The inlet pipe 2 and the outlet pipe 3 are respectively located on both sides of the cylinder 1. An air inlet assembly and an exhaust pipe 4 are respectively provided at the upper and lower ends of the cylinder 1. The air inlet assembly is used to transport the sodium azide production tail gas into the cylinder 1. The condensation assembly is connected to the air inlet assembly and the exhaust pipe 4 to receive and discharge the input sodium azide production tail gas.

[0029] Among them, such as Figure 3 As shown, the condenser assembly includes a condenser cylinder 10, a fixing plate 11, a condenser tube 12, and an air inlet pipe 13. To facilitate the installation and disassembly of the condenser assembly, the condenser cylinder 10, fixing plate 11, condenser tube 12, and air inlet pipe 13 are assembled into an assembly. This assembly means that during installation, the condenser cylinder 10, fixing plate 11, condenser tube 12, and air inlet pipe 13 are first assembled into a whole, and then the assembly is installed into the interior of the cylinder 1. During disassembly, the assembly is also disassembled and removed as a whole. The assembly can slide in and out of the cylinder 1 for installation and disassembly. Fixing plates 11 are provided at both ends of the condenser cylinder 10. The fixing plates 11 are circular plates, and their peripheries are in contact with the inner wall of the cylinder 1. At the same time, in order to prevent coolant leakage, a seal is provided on the periphery of the fixing plates 11. The condenser cylinder 10 is fixed between two fixed plates 11, forming a condensation chamber where the exhaust gas is cooled. The fixed plates 11 are slidably connected to the inner wall of the cylinder 1. Multiple condenser pipes 12 are evenly arranged inside the cylinder 1, and the condenser pipes 12 supply coolant flow. The two ends of the condenser pipes 12 extend from the two fixed plates 11 to the outside of the condenser cylinder 10. The coolant enters the cylinder 1 from the inlet pipe 2 and then enters the condenser pipe 12 to exchange heat with the gas. The temperature of the coolant rises and it is discharged from the outlet pipe 3. After being cooled again, it enters the inlet pipe 2 to form a cycle. The air inlet pipe 13 is connected to the air inlet assembly. The gas input by the air inlet assembly enters the air inlet pipe 13 and then enters the condenser cylinder 10.

[0030] This invention enables the condenser cylinder 10, fixing plate 11, condenser pipe 12 and air inlet pipe 13 to be assembled as a whole for installation and disassembly. In subsequent maintenance, when it is necessary to clean the pipes inside the condenser cylinder 10, the whole assembly can be directly removed for replacement, without having to disassemble the condenser pipe 12 one by one, thus improving the efficiency of replacement and maintenance.

[0031] To ensure uniform exhaust gas intake, two intake pipes 13 are symmetrically arranged along the tangential direction on the periphery of the condenser cylinder 10. The exhaust gas enters the interior of the condenser cylinder 10 along the two intake pipes 13. During intake, the exhaust gas enters symmetrically from both sides along the tangential direction, making the exhaust gas intake smoother and more stable after entering the condenser cylinder 10. This reduces turbulence generated when the exhaust gas enters, improves the uniformity of exhaust gas intake, avoids strong impact of gas on the condenser cylinder 10 and condenser pipe 12, and improves the service life of the condenser cylinder 10 and condenser pipe 12.

[0032] In order to allow for the replacement of individual condenser tubes 12, the condenser tubes 12 are configured to slide and connect to the fixing plate 11, which allows for the replacement of individual condenser tubes 12 and improves the convenience of maintenance. It should be noted that a sealing ring should be fitted on the outside of the condenser tubes 12 to isolate the two sides of the fixing plate 11 and ensure airtightness.

[0033] To improve the cooling effect on the exhaust gas, the intake assembly is positioned near the outlet pipe 3, and the exhaust pipe 4 is positioned near the inlet pipe 2, so that the flow direction of the exhaust gas is opposite to the flow direction of the coolant. Since the temperature of the gas gradually decreases in the condenser 10, while the temperature of the condensate gradually increases in the condenser 10, when the high-temperature exhaust gas enters the condenser 10, it exchanges heat with the relatively high-temperature coolant to cool down. As it is transported, it gradually exchanges heat with the lower-temperature coolant, which can ensure the cooling effect on the exhaust gas.

[0034] To achieve stable exhaust gas intake, such as Figure 1 and Figure 4 As shown, the air intake assembly includes a filter cartridge 5 and two air supply pipes 6. The side of the filter cartridge 5 is connected to one end of the two air supply pipes 6, and the other end of the two air supply pipes 6 is inserted into the interior of the cylinder 1 and connected to the two air intake pipes 13 respectively. The connection method is set to be detachable to facilitate the removal and cleaning of the condenser cylinder 10. The filter cartridge 5 is equipped with a filter unit to filter the exhaust gas entering the air supply pipe 6, filtering out solid impurities in the exhaust gas, such as sodium salt residues, to prevent solid impurities from remaining in the condenser cylinder 10 during the condensation process, which would shorten the cleaning cycle.

[0035] To facilitate easy replacement of the filter unit, the filter unit is designed to be inserted into the filter cylinder 5 from one end. The filter unit is configured as a connecting frame 7 and a filter element 8. One end of the connecting frame 7 can seal one end of the filter cylinder 5, and the other end is used to install the filter element 8. One end of the connecting frame 7 is inserted into the filter cylinder 5 and threadedly connected to the filter cylinder 5. That is, an external thread is provided on the connecting frame 7, and an internal thread matching the external thread is provided on the inner wall of the filter cylinder 5.

[0036] To prevent pollution caused by sodium azide tail gas leakage when replacing the filter unit, a pipe connector 9 is connected to the filter cartridge 5. When the filter unit needs to be replaced, first close the tail gas valve to cut off the tail gas input, connect the pipe connector 9 to the external air pump, start the air pump to deliver air, replace the gas in the filter cartridge 5, and replace the filter unit after a period of replacement.

[0037] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A condenser for sodium azide, characterized by, It includes a cylinder (1), a condensation assembly disposed inside the cylinder (1), and an inlet pipe (2) and an outlet pipe (3) respectively disposed on both sides of the cylinder (1); The upper and lower ends of the cylinder (1) are respectively provided with an air intake assembly and an exhaust pipe (4). The air intake assembly is used to transport sodium azide tail gas. The condensation assembly is connected to the air intake assembly and the exhaust pipe (4). The condensation assembly includes a condenser cylinder (10), a fixing plate (11), a condenser tube (12), and an air inlet pipe (13); the condenser cylinder (10), the fixing plate (11), the condenser tube (12), and the air inlet pipe (13) form an assembly that can slide in and out of the cylinder (1); the fixing plate (11) is provided at both ends of the condenser cylinder (10), the condenser cylinder (10) is fixed between the two fixing plates (11), and the fixing plate (11) is slidably connected to the inner wall of the cylinder (1); the condenser tube (12) is provided in multiple and evenly arranged inside the cylinder (1), and the two ends of the condenser tube (12) respectively extend through the two fixing plates (11) to the outside of the condenser cylinder (10); the air inlet pipe (13) is connected to the air inlet assembly.

2. The condenser for sodium azide according to claim 1, characterized by The air intake pipe (13) is provided as two pipes, and the condenser cylinder (10) is symmetrically provided with two air intake pipes (13) along the tangential direction on the periphery.

3. The condenser for sodium azide according to claim 1, characterized by The condenser tube (12) is slidably connected to the fixing plate (11).

4. The condenser for sodium azide according to any one of claims 1 to 3, characterized by The air intake assembly is located at one end near the liquid outlet pipe (3), and the exhaust pipe (4) is located at one end near the liquid inlet pipe (2).

5. The condenser for sodium azide according to claim 2 or 3, characterized by The air intake assembly includes a filter cylinder (5) and two air supply pipes (6). The filter cylinder (5) is connected to the two air supply pipes (6). The two air supply pipes (6) are inserted into the interior of the cylinder (1) and connected to the two air intake pipes (13) respectively. A filter unit is provided inside the filter cylinder (5).

6. The condenser for sodium azide according to claim 5, characterized by The filter unit can be inserted into the interior of the filter cylinder (5) from one end. The filter unit includes a connecting frame (7) and a filter element (8). The connecting frame (7) is threaded to one end of the filter cylinder (5), and the filter element (8) is mounted on the connecting frame (7).

7. The condenser for sodium azide according to claim 5, characterized by The filter cartridge (5) is connected to a pipe connector (9), which can be connected to an external air pump.

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