A flow guiding nitrogen heater

Abstract

The utility model discloses a flow guide type nitrogen heater, including heater box body, the inside installation of heater box body has the flow guide pipe, the flow guide pipe is commonly made of multiple U type structure pipeline, nitrogen pressure regulating mechanism is installed with booster pipeline and pressure relief pipeline respectively, one end of booster pipeline is linked together with the flow guide pipe inside through nitrogen booster mouth, one end of pressure relief pipeline is linked together with the flow guide pipe inside through nitrogen pressure release mouth. The utility model discloses a flow guide pipe that is commonly made of multiple U type structure pipeline and is installed in the inside of heater box body, can be used for guiding nitrogen gas flow direction, prolongs the retention time of gas in the inner chamber, thereby makes gas heat fully, makes gas heating even, improves heat exchange efficiency, is provided with booster pipeline and pressure relief pipeline simultaneously, can be used for the real -time regulation control of flow guide pipe inside gas pressure, guarantees its internal air pressure safety and stability, prevents the security hidden danger problem of flow guide pipe inside.

Description

Technical Field

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

[0002] Nitrogen heaters are primarily used to heat airflow from its initial temperature to the desired temperature, up to 850°C. They are widely used in aerospace, weaponry, chemical industries, and universities, and are particularly suitable for testing automated temperature control, high-flow-rate, high-temperature combined systems and accessories. During the heating process, because nitrogen is transported through pipelines and heated by electric heaters, the heating speed is slow and uneven. If there is no nitrogen in the pipeline, the electric heater may heat an empty pipeline, potentially causing damage.

[0003] Chinese patent document CN209782980U relates to heaters, particularly nitrogen heaters. It provides a nitrogen heater with a simple structure, convenient heating, and extended service life. The heater includes a tank with four legs at the bottom; an upper opening at the center of the top and a lower opening at the center of the bottom, each with a plug; a nitrogen pipe inside the tank, comprising an inlet pipe, an outlet pipe, and three sets of auxiliary pipes; the inlet pipe extending from the top of the tank and the outlet pipe extending from the bottom; the three sets of auxiliary pipes arranged parallel and sequentially, each including a horizontally arranged upper and lower pipe, the upper pipe positioned above the lower pipe, with parallel and spaced vertical pipes between the upper and lower pipes; an electric heater inside the tank, and heat-conducting oil inside the tank. This invention is easy to manufacture and reliable in operation.

[0004] In the aforementioned prior art, the gas remains in the inner cavity for a short time, resulting in insufficient and uneven gas heating. Furthermore, no gas pressure regulation mechanism is provided to ensure the safety of the internal gas pressure. Therefore, it is necessary to develop a flow-guided nitrogen heater. Utility Model Content

[0005] The purpose of this utility model is to provide a flow-guided nitrogen heater to solve the problems mentioned in the background art, such as the short gas retention time in the inner cavity, resulting in insufficient and uneven gas heating, and the lack of a gas pressure regulation mechanism to ensure the safety of the internal gas pressure.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a flow-guiding nitrogen heater, comprising a heater housing, wherein a flow-guiding pipe is installed inside the heater housing, the flow-guiding pipe being composed of multiple U-shaped pipe structures, and a nitrogen pressure regulating mechanism is installed outside the heater housing, wherein a pressure-boosting pipe and a pressure-reducing pipe are respectively installed on the nitrogen pressure regulating mechanism, one end of the pressure-boosting pipe being connected to the inside of the flow-guiding pipe through a nitrogen pressure-boosting port, and one end of the pressure-reducing pipe being connected to the inside of the flow-guiding pipe through a nitrogen pressure-reducing port.

[0007] Preferably, the other end of the booster pipeline is connected to a booster pump via a sealed pipe, and a booster control valve is installed on the booster pipeline.

[0008] Preferably, the other end of the pressure relief pipeline is sealed to a pressure relief pump via a pipe, and a pressure relief control valve is installed on the pressure relief pipeline.

[0009] Preferably, the inside of the guide tube is sealed with a pressure gauge via a pressure measuring pipeline.

[0010] Preferably, the guide tube is used to guide the flow of nitrogen gas and prolong the residence time of nitrogen gas in the inner cavity.

[0011] Preferably, the pressurization line is used to pressurize nitrogen inside the guide tube, and the depressurization line is used to depressurize nitrogen inside the guide tube.

[0012] Preferably, an exhaust pipe is installed at the outlet end of the guide pipe, and an exhaust switch valve is installed on the exhaust pipe.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This invention features a guide tube composed of multiple U-shaped pipes installed inside the heater housing. This guide tube directs the flow of nitrogen gas, prolongs the residence time of the gas within the cavity, and ensures thorough and uniform heating, thereby improving heat exchange efficiency. Simultaneously, it incorporates pressurization and depressurization lines to regulate and control the gas pressure inside the guide tube in real time, ensuring a safe and stable internal pressure and preventing potential safety hazards within the guide tube. 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 side view of the present invention.

[0017] Figure 3 This is an internal top view of the present invention.

[0018] In the diagram: 1. Heater housing; 2. Pressure boosting pipeline; 3. Pressure boosting control valve; 4. Pressure booster pump; 5. Nitrogen pressure regulating mechanism; 6. Pressure relief pump; 7. Pressure relief pipeline; 8. Pressure relief control valve; 9. Pressure gauge; 10. Nitrogen pressure relief port; 11. Nitrogen pressure boosting port; 12. Guide pipe; 13. Exhaust switch valve; 14. Exhaust pipe. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0020] Please see Figure 1-3 One embodiment of this utility model is a flow-guiding nitrogen heater, comprising a heater housing 1, a flow-guiding pipe 12 installed inside the heater housing 1, the flow-guiding pipe 12 being composed of multiple U-shaped pipes, a nitrogen pressure regulating mechanism 5 installed outside the heater housing 1, a pressure boosting pipe 2 and a pressure relief pipe 7 respectively installed on the nitrogen pressure regulating mechanism 5, one end of the pressure boosting pipe 2 being connected to the inside of the flow-guiding pipe 12 through a nitrogen pressure boosting port 11, and one end of the pressure relief pipe 7 being connected to the inside of the flow-guiding pipe 12 through a nitrogen pressure relief port 10.

[0021] Furthermore, the other end of the pressurization pipeline 2 is sealed with a pressurization pump 4 through a pipeline. A pressurization control valve 3 is installed on the pressurization pipeline 2. By opening the pressurization control valve 3 and starting the pressurization pump 4, it can be used to increase the gas pressure inside the guide pipe 12 through the pressurization pipeline 2.

[0022] Furthermore, the other end of the pressure relief pipeline 7 is sealed with a pressure relief pump 6 via a pipeline. A pressure relief control valve 8 is installed on the pressure relief pipeline 7. By opening the pressure relief control valve 8, the pressure relief pump 6 is turned on and used to reduce the pressure of the gas inside the guide pipe 12 through the pressure relief pipeline 7.

[0023] Furthermore, the inside of the guide tube 12 is sealed with a pressure gauge 9 via a pressure measuring pipeline, which can be used to monitor and display the internal gas pressure value of the guide tube 12 in real time.

[0024] Furthermore, the guide tube 12 is used to guide the flow of nitrogen gas, prolong the residence time of nitrogen gas in the inner cavity, thereby fully heating the gas, making the gas heated evenly, and improving the heat exchange efficiency.

[0025] Furthermore, the pressurization line 2 is used to pressurize nitrogen inside the guide tube 12, and the depressurization line 7 is used to depressurize nitrogen inside the guide tube 12. This can be used to adjust and control the gas pressure inside the guide tube 12 in real time, ensuring its internal gas pressure is safe and stable, and preventing safety hazards from occurring inside the guide tube 12.

[0026] Furthermore, an exhaust pipe 14 is installed at the outlet end of the guide pipe 12, and an exhaust switch valve 13 is installed on the exhaust pipe 14. By opening the exhaust switch valve 13, gas is discharged from the end of the exhaust pipe 14.

[0027] Working Principle: During use, a guide pipe 12 is installed inside the heater housing 1. The guide pipe 12 is composed of multiple U-shaped pipes. A nitrogen pressure regulating mechanism 5 is installed outside the heater housing 1. The nitrogen pressure regulating mechanism 5 is equipped with a pressure boosting pipe 2 and a pressure relief pipe 7. One end of the pressure boosting pipe 2 is connected to the inside of the guide pipe 12 through a nitrogen pressure boosting port 11. One end of the pressure relief pipe 7 is connected to the inside of the guide pipe 12 through a nitrogen pressure relief port 10. A pressure gauge 9 is sealed inside the guide pipe 12 through a pressure measuring pipe, which can be used to monitor and display the internal gas pressure value of the guide pipe 12 in real time. By opening the pressure boosting control valve 3 and starting the pressure boosting pump 4, the pressure inside the guide pipe 12 can be boosted through the pressure boosting pipe 2. The gas pressure is increased by opening the pressure relief control valve 8 and starting the pressure relief pump 6, which is used to reduce the gas pressure inside the guide tube 12 through the pressure relief pipeline 7. The pressurization pipeline 2 is used to pressurize nitrogen inside the guide tube 12, and the pressure relief pipeline 7 is used to depressurize nitrogen inside the guide tube 12. This can be used to adjust and control the gas pressure inside the guide tube 12 in real time, ensuring its internal pressure is safe and stable, and preventing safety hazards inside the guide tube 12. The guide tube 12 is composed of multiple U-shaped structure pipelines. The U-shaped design of the guide tube 12 is used to guide the flow of nitrogen gas, prolong the residence time of nitrogen gas in the inner cavity, so that the gas is fully heated, the gas is heated evenly, and the heat exchange efficiency is improved.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0029] All standard parts used in this application can be purchased from the market. The specific connection methods of each part are all conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment are all conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, and will not be described in detail here.

[0030] 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 flow-guided nitrogen heater, comprising a heater housing (1), characterized in that, The heater housing (1) is equipped with a flow guide pipe (12), which is composed of multiple U-shaped pipes. The heater housing (1) is equipped with a nitrogen pressure regulating mechanism (5). The nitrogen pressure regulating mechanism (5) is equipped with a pressure boosting pipe (2) and a pressure relief pipe (7). One end of the pressure boosting pipe (2) is connected to the inside of the flow guide pipe (12) through a nitrogen pressure boosting port (11), and one end of the pressure relief pipe (7) is connected to the inside of the flow guide pipe (12) through a nitrogen pressure relief port (10).

2. A flow-guiding nitrogen heater according to claim 1, characterized in that: The other end of the booster pipeline (2) is connected to a booster pump (4) via a sealed pipe, and a booster control valve (3) is installed on the booster pipeline (2).

3. A flow-guiding nitrogen heater according to claim 1, characterized in that: The other end of the pressure relief pipeline (7) is connected to a pressure relief pump (6) via a sealed pipe, and a pressure relief control valve (8) is installed on the pressure relief pipeline (7).

4. A flow-guiding nitrogen heater according to claim 1, characterized in that: The inside of the guide pipe (12) is sealed with a pressure gauge (9) through a pressure measuring pipeline.

5. A flow-guiding nitrogen heater according to claim 1, characterized in that: The guide tube (12) is used to guide the flow of nitrogen gas and prolong the residence time of nitrogen gas in the inner cavity.

6. A flow-guiding nitrogen heater according to claim 1, characterized in that: The pressurization line (2) is used to pressurize nitrogen inside the guide tube (12), and the depressurization line (7) is used to depressurize nitrogen inside the guide tube (12).

7. A flow-guiding nitrogen heater according to claim 1, characterized in that: An exhaust pipe (14) is installed at the outlet end of the guide pipe (12), and an exhaust switch valve (13) is installed on the exhaust pipe (14).

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