Nitrogen heater assembly

Abstract

The utility model discloses nitrogen heater assembly, including jar body, the inside of jar body is provided with heat conducting oil, heats the heat conducting oil in the inside of jar body through electric heater, imports the nitrogen through import pipe, and the nitrogen will be dispersed from import pipe and enter the inside of branch pipe, and the nitrogen is continuously transported through the branch pipe of smaller size, can improve the heat conduction efficiency of nitrogen in the inside of branch pipe, improve the heating effect of nitrogen, and the nitrogen in the inside of rear branch pipe will be concentrated and transported to the connecting pipe and import exhaust pipe, and then discharge from export pipe, in the process of heating nitrogen, through the control motor power operation, and the motor will drive the rotation of the shaft, and the rotation plate on the shaft can agitate the heat conducting oil in the inside of jar body, can improve the overall uniformity of the heat conducting oil in the inside of jar body, can improve the uniformity of heating nitrogen, and simultaneously, the export pipe in the middle position of jar body exports nitrogen, can reduce the influence of high temperature at electric heater at the end of jar body on the heating of nitrogen.

Description

Technical Field

[0001] This utility model relates to the field of nitrogen heater technology, specifically to a nitrogen heater assembly. Background Technology

[0002] Nitrogen heaters are mainly used to heat nitrogen from its initial temperature to the required air temperature, up to 850℃. They have been widely used in many scientific research and production laboratories in aerospace, weaponry, chemical industry, and universities. They are particularly suitable for automatic temperature control, high flow rate, high temperature combined systems and accessory testing.

[0003] In the "Nitrogen Heater" with authorization announcement number "CN209782980U", an electric heater heats the heat transfer oil, which then conducts heat through the nitrogen pipe to heat the nitrogen. When nitrogen is introduced into the nitrogen pipe, it passes through three sets of auxiliary pipes for guidance and diversion, resulting in rapid and uniform heating, while also increasing the gas flow rate. The heat transfer oil wrapping around the nitrogen pipe also provides insulation. However, during use, the heaters are located at both ends of the tank. When heating the heat transfer oil, the oil in the middle of the tank experiences poor temperature rise. Furthermore, the pipes used to transport nitrogen are mostly located in the middle of the tank, where heat absorption is strong, leading to poor synchronous heating of the heat transfer oil within the tank, thus affecting the heating of the nitrogen. Additionally, with heaters installed at both ends of the tank, the heating oil at the ends has a higher temperature and faster temperature rise, making it difficult to effectively control the nitrogen heating temperature when it exits the tank. Utility Model Content

[0004] The purpose of this invention is to provide a nitrogen heater assembly to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a nitrogen heater assembly, including a tank body, the interior of which is filled with heat-conducting oil. A flange is fixedly installed at the end of the tank body by bolts, and an inlet pipe is welded to the center of the flange. Branch pipes are installed equidistantly inside the tank body, one end of which is fixedly connected to the end of the inlet pipe. The branch pipes are sealed to the inlet pipes and are connected to each other. The end of the branch pipes away from the inlet pipe is located in the center of the tank body. A motor is symmetrically fixedly installed on the outside of the tank body. A rotating shaft is fixedly installed at the output end of the motor. The rotating shaft is rotatably connected to the tank body through a mechanical seal. Rotating plates are fixedly installed in a ring array around the central axis of the rotating shaft on the outside of the rotating shaft. Electric heaters are installed inside both ends of the tank body.

[0006] As a further preferred embodiment of this technical solution, a connecting pipe is fixedly installed between the ends of several branch pipes away from the inlet pipe, and an outlet pipe is fixedly installed in the middle of the connecting pipe. The outlet pipe is located in the middle of the tank body, and an outlet pipe is fixedly installed in the middle of the tank body. The outlet pipe and the outlet pipe are connected in a sealed manner.

[0007] As a further preferred embodiment of this technical solution, a connecting pipe is integrally provided on the outlet pipe, and a temperature detection probe is fixedly installed at the end of the connecting pipe by a flange, and the temperature detection probe is located inside the outlet pipe.

[0008] As a further preferred embodiment of this technical solution, mounting plates are installed at both ends of the tank body, the branch pipe is fixedly installed between the two mounting plates, and fixing blocks are symmetrically welded to the inner walls of both ends of the tank body. The two ends of the mounting plates are fixedly connected to the fixing blocks by bolts.

[0009] As a further preferred embodiment of this technical solution, an oil inlet pipe is welded to the top of the tank body, and an oil outlet pipe is welded to the bottom of the tank body. Both the oil inlet pipe and the oil outlet pipe are fixedly connected to the cover via flanges.

[0010] As a further preferred embodiment of this technical solution, the output terminals of the two motors rotate in opposite directions.

[0011] As a further preferred embodiment of this technical solution, there are at least three branch pipes.

[0012] This utility model provides a nitrogen heater assembly, which has the following beneficial effects:

[0013] (1) This utility model heats the heat transfer oil inside the tank by an electric heater and introduces nitrogen through the inlet pipe. The nitrogen will disperse from the inlet pipe into the branch pipe. The nitrogen will be continuously transported through the smaller branch pipe, which can improve the heat transfer efficiency of the nitrogen inside the branch pipe and improve the heating effect of the nitrogen. Then the nitrogen inside the branch pipe will be concentrated and transported to the connecting pipe and introduced into the outlet pipe, and then discharged from the outlet pipe. The nitrogen can be discharged from the outlet pipe in the middle of the tank, which can reduce the high temperature at the electric heater at the end of the tank from the heating effect of the nitrogen.

[0014] (2) In the process of heating nitrogen, the present invention controls the motor to operate, the motor will drive the rotating shaft to rotate, and the rotating plate on the rotating shaft can stir the heat transfer oil inside the tank, which can improve the overall uniformity of the heat transfer oil inside the tank and improve the uniformity of nitrogen heating. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the overall exploded structure of this utility model;

[0017] Figure 3 This is a partial cross-sectional exploded view of the present invention;

[0018] In the diagram: 1. Tank body; 2. Flange; 3. Inlet pipe; 4. Branch pipe; 5. Motor; 6. Shaft; 7. Rotating plate; 8. Connecting pipe; 9. Gas outlet pipe; 10. Outlet pipe; 11. Connecting pipe; 12. Temperature detection probe; 13. Mounting plate; 14. Oil inlet pipe; 15. Oil outlet pipe; 16. Electric heater. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0020] This utility model provides a technical solution: such as Figures 1 to 3As shown, in this embodiment, the nitrogen heater assembly includes a tank 1, the interior of which is filled with heat-conducting oil. A flange 2 is bolted to the end of the tank 1, and an inlet pipe 3 is welded to the center of the flange 2. At least three branch pipes 4 are installed equidistantly inside the tank 1. The size of each branch pipe 4 is smaller than that of the inlet pipe 3. One end of each branch pipe 4 is fixedly connected to the end of the inlet pipe 3, and the branch pipe 4 and the inlet pipe 3 are sealed together and connected. The branch pipe 4 is located away from the inlet pipe 3. One end is located in the middle of the tank body 1. Motors 5 are symmetrically fixedly installed on the outer side of the tank body 1. The output ends of the two motors 5 rotate in opposite directions. A rotating shaft 6 is fixedly installed at the output end of each motor 5. The rotating shaft 6 is rotatably connected to the tank body 1 via a mechanical seal. Rotating plates 7 are fixedly installed in a ring array around the central axis of the rotating shaft 6 on the outer side of the rotating shaft 6. Electric heaters 16 are installed inside both ends of the tank body 1. A connecting pipe 8 is fixedly installed between the ends of several branch pipes 4 furthest from the inlet pipe 3. The middle of the connecting pipe 8... A vent pipe 9 is fixedly installed in the middle of the tank body 1. An outlet pipe 10 is also fixedly installed in the middle of the tank body 1. The vent pipe 9 and outlet pipe 10 are connected and sealed together. The heat-conducting oil inside the tank body 1 is heated by an electric heater 16. Nitrogen gas is introduced through the inlet pipe 3 and dispersed into the branch pipe 4. The continuous delivery of nitrogen gas through the smaller branch pipe 4 improves the heat transfer efficiency of the nitrogen gas inside the branch pipe 4 and enhances the heating effect. The nitrogen gas inside the rear branch pipe 4 will be concentrated and transported to the connecting pipe 8 and then into the outlet pipe 9, and then discharged from the outlet pipe 10. During the nitrogen heating process, the motor 5 is powered on and driven to rotate the shaft 6. The rotating plate 7 on the shaft 6 can stir the heat transfer oil inside the tank 1, which can improve the overall uniformity of the heat transfer oil inside the tank 1 and improve the uniformity of nitrogen heating. At the same time, the nitrogen gas is discharged from the outlet pipe 10 in the middle of the tank 1, which can reduce the impact of the high temperature at the electric heater 16 at the end of the tank 1 on the nitrogen heating.

[0021] like Figures 1 to 3 As shown, a connecting pipe 11 is integrally provided on the outlet pipe 10, and a temperature detection probe 12 is fixedly installed at the end of the connecting pipe 11 through a flange. The temperature detection probe 12 is located inside the outlet pipe 10.

[0022] The temperature of the nitrogen gas discharged from the outlet pipe 10 can be detected by the temperature detection probe 12.

[0023] like Figures 1 to 3As shown, mounting plates 13 are installed at both ends of the tank body 1, and the branch pipe 4 is fixedly installed between the two mounting plates 13. Fixing blocks are symmetrically welded to the inner walls of both ends of the tank body 1, and the two ends of the mounting plates 13 are fixedly connected to the fixing blocks by bolts.

[0024] The branch pipe 4 can be supported by installing the branch pipe 4 on the mounting plate 13 and fixing the mounting plate 13 to the tank body 1.

[0025] like Figures 1 to 3 As shown, an oil inlet pipe 14 is welded to the top of the tank body 1, and an oil outlet pipe 15 is welded to the bottom of the tank body 1. Both the oil inlet pipe 14 and the oil outlet pipe 15 are fixedly connected to the cover through flanges.

[0026] Heat transfer oil can be added through the oil inlet pipe 14 and discharged through the oil outlet pipe 15, thus realizing the replacement of heat transfer oil.

[0027] This utility model provides a nitrogen heater assembly, the specific working principle of which is as follows:

[0028] When the device is in use, the heat transfer oil inside the tank 1 is heated by the electric heater 16. Nitrogen gas is introduced through the inlet pipe 3 and dispersed into the branch pipe 4. The nitrogen gas is continuously delivered through the smaller branch pipe 4, which can improve the heat transfer efficiency of the nitrogen gas inside the branch pipe 4 and improve the heating effect of the nitrogen gas. Then the nitrogen gas inside the branch pipe 4 is concentrated and delivered to the connecting pipe 8 and then into the outlet pipe 9, and finally discharged from the outlet pipe 10. During the nitrogen heating process, the motor 5 is powered on and drives the rotating shaft 6 to rotate. The rotating plate 7 on the rotating shaft 6 can stir the heat transfer oil inside the tank 1, which can improve the overall uniformity of the heat transfer oil inside the tank 1 and improve the uniformity of nitrogen heating. At the same time, the nitrogen gas is discharged from the outlet pipe 10 in the middle of the tank 1, which can reduce the impact of the high temperature at the electric heater 16 at the end of the tank 1 on the nitrogen heating.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A nitrogen heater assembly, characterized in that: The tank (1) is equipped with heat transfer oil. A flange (2) is fixedly installed at the end of the tank (1) by bolts. An inlet pipe (3) is welded to the middle of the flange (2). Branch pipes (4) are installed at equal intervals inside the tank (1). One end of the branch pipe (4) is fixedly connected to the end of the inlet pipe (3). The branch pipe (4) is sealed to the inlet pipe (3) and connected to the inlet pipe (3). The end of the branch pipe (4) away from the inlet pipe (3) is located in the middle of the tank (1). A motor (5) is symmetrically fixedly installed on the outside of the tank (1). A rotating shaft (6) is fixedly installed at the output end of the motor (5). The rotating shaft (6) is rotatably connected to the tank (1) by a mechanical seal. Rotating plates (7) are fixedly installed in a ring array around the central axis of the rotating shaft (6). Electric heaters (16) are installed inside both ends of the tank (1).

2. The nitrogen heater assembly according to claim 1, characterized in that: A connecting pipe (8) is fixedly installed between the ends of several branch pipes (4) away from the inlet pipe (3). An outlet pipe (9) is fixedly installed in the middle of the connecting pipe (8). The outlet pipe (9) is located in the middle of the tank body (1). An outlet pipe (10) is fixedly installed in the middle of the tank body (1). The outlet pipe (9) and the outlet pipe (10) are connected in a continuous manner and are sealed together.

3. The nitrogen heater assembly according to claim 2, characterized in that: The outlet pipe (10) is integrally provided with a connecting pipe (11), and a temperature detection probe (12) is fixedly installed at the end of the connecting pipe (11) through a flange. The temperature detection probe (12) is located inside the outlet pipe (10).

4. The nitrogen heater assembly according to claim 2, characterized in that: Mounting plates (13) are installed at both ends of the tank (1). The branch pipe (4) is fixedly installed between the two mounting plates (13). Fixing blocks are symmetrically welded to the inner walls of both ends of the tank (1). The two ends of the mounting plate (13) are fixedly connected to the fixing blocks by bolts.

5. The nitrogen heater assembly according to claim 4, characterized in that: The top of the tank (1) is welded with an oil inlet pipe (14), and the bottom of the tank (1) is welded with an oil outlet pipe (15). The oil inlet pipe (14) and the oil outlet pipe (15) are both fixedly connected to the cover by flanges.

6. The nitrogen heater assembly according to claim 1, characterized in that: The outputs of the two motors (5) rotate in opposite directions.

7. The nitrogen heater assembly according to claim 1, characterized in that: There are at least three branch pipes (4).

Images