High-power gas heater manufactured by utilizing single-head heating pipe

Abstract

The utility model relates to a high-power gas heater manufactured by using a single-head heating pipe, which is used for heating gas and comprises a gas cylinder, the gas cylinder is provided with a gas inlet and a gas outlet, the inner side of the gas cylinder is matched with the single-head heating pipe, a gas conveying space is reserved between the single-head heating pipe and the gas cylinder, and the gas conveying space is communicated with the gas inlet and the gas outlet. And a retention part matched with the gas is arranged in the space. The single-head heating pipe is matched with the retention part, so that the gas transmission track is changed, the gas retention time is prolonged, the contact area between gas and the heating pipe is increased, the heating time is prolonged, and the heat efficiency is greatly improved.

Description

Technical Field

[0001] This utility model relates to a gas heater, and more specifically, it also relates to a high-power gas heater made using a single-ended heating tube. Background Technology

[0002] In the current industrial sector, traditional heating devices have a relatively fast contact speed and a small contact area between the gas and the heating rod after the gas enters the heating zone, resulting in a short contact time and thus a generally low thermal efficiency in gas heating industries.

[0003] Traditional structures typically use fixed burners and heat exchangers welded together. If there is a malfunction or maintenance requires repair, the entire unit must be shut down. The average maintenance time is more than 8 hours, which leads to problems such as a decrease in direct output and an increase in maintenance costs. Utility Model Content

[0004] To achieve the purpose of this utility model, the technical solution adopted by this utility model is as follows: a high-power gas heater made of a single-ended heating tube for gas heating, comprising: a gas cylinder, the gas cylinder having an air inlet and an air outlet, a single-ended heating tube fitted inside the gas cylinder, a space for gas delivery between the single-ended heating tube and the gas cylinder, and a gas retention component provided in the space.

[0005] Preferably, the retention component includes: a plurality of semi-circular fins fixed to the outer surface of the single-head heating tube, the plurality of semi-circular fins being alternately arranged along the axis of the single-head heating tube.

[0006] Preferably, the retention component includes: a plurality of semi-circular fins fixed to the inner wall of the air cylinder, the plurality of semi-circular fins being alternately arranged along the axis of the air cylinder.

[0007] Preferably, the retention component includes: a retention frame disposed between the single-head heating tube and the air cylinder, wherein the retention frame is fixedly connected with a plurality of semi-circular fins, and the plurality of semi-circular fins are alternately arranged along the axis of the single-head heating tube.

[0008] Preferably, the air cylinder is fitted with a metal outer shell, and both the air cylinder and the single-ended heating tube are fixedly installed inside the metal outer shell.

[0009] Preferably, an insulation layer is provided between the metal outer shell and the air cylinder.

[0010] Preferably, the metal casing is fixedly connected with a fixing plate.

[0011] Preferably, the metal casing is fixedly provided with a press-type thermocouple that communicates with the internal space.

[0012] Preferably, the single-head heating tube is entirely coated with a ceramic coating.

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

[0014] 1. By combining a single-head heating tube with a retention component, the gas transmission trajectory is altered, increasing the gas residence time, thereby increasing the contact area between the gas and the heating tube and the heating time, which greatly improves thermal efficiency.

[0015] 2. By setting up a press-type thermocouple to monitor the temperature of the heated gas, safety hazards caused by gas overheating can be prevented.

[0016] 3. Multiple parts are secured inside the metal casing using reducing nuts, simplifying maintenance and improving installation efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the high-power gas heater made using a single-ended heating tube in this utility model;

[0018] Figure 2 This is an overall cross-sectional view of the high-power gas heater made using a single-ended heating tube in this utility model;

[0019] Figure 3 This is a diagram showing the assembly state of the single-head heating tube and the semi-circular fins in this utility model.

[0020] In the diagram: 1. Metal casing; 2. Air cylinder; 201. Air inlet; 202. Air outlet; 3. Single-head heating tube; 4. Semi-circular fins; 5. Insulation layer; 6. Fixing plate; 7. Variable diameter nut; 8. Press-type thermocouple. Detailed Implementation

[0021] 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.

[0022] Example 1:

[0023] Figures 1 to 3 As shown, this utility model provides a technical solution: a high-power gas heater made using a single-ended heating tube for gas heating, comprising: a gas cylinder 2, the gas cylinder 2 having an air inlet 201 and an air outlet 202, a single-ended heating tube 3 fitted inside the gas cylinder 2, a space for gas delivery between the single-ended heating tube 3 and the gas cylinder 2, and a gas retention component fitted inside the space.

[0024] The retention component includes: multiple semi-circular fins 4 fixed on the outer surface of the single-head heating tube 3, with the multiple semi-circular fins 4 arranged alternately along the axis of the single-head heating tube 3.

[0025] The single-head heating tube 3 and the semi-circular fin 4 are connected by welding and are coated with a ceramic coating, which ensures both thermal conductivity and corrosion resistance, avoids the disadvantage of easy sulfurization of traditional stainless steel materials, and increases the overall service life.

[0026] The alternating semi-circular fins 4 drive the incoming gas to form a vortex (the air inlet can be tangent to the inner wall of the air cylinder 2, and the two ends of the semi-circular fins 4 can be set as a high point and a low point, so that the gas moves from the low point to the high point to form a vortex), which increases the contact time and contact area between the gas and the single-head heating tube 3, reduces heat loss and increases thermal efficiency.

[0027] The air cylinder 2 is covered by a metal outer shell 1. The air cylinder 2 and the single-head heating tube 3 are both fixedly installed inside the metal outer shell 1. An insulation layer 5 is provided between the metal outer shell 1 and the air cylinder 2. The insulation layer 5 can be made of mica.

[0028] The metal casing 1 is fixedly equipped with a press-type thermocouple 8 that communicates with the internal space. The gas heater is designed with thermocouple mounting holes to install threaded press-type thermocouples 8, which monitor the temperature of the internal heated gas, prevent safety hazards (risk of explosion) caused by overheating, and, in conjunction with temperature control equipment, can adjust the power output in real time according to the temperature.

[0029] The metal casing 1 is fixedly connected to a fixing plate 6. The fixing plate 6 drives the heater to be fixed on other equipment. The single-head heating tube 3 is fixed inside the metal casing 1 by a reducing nut 7, which improves installation efficiency.

[0030] Example 2:

[0031] The retention component includes: multiple semi-circular fins 4 fixed to the inner wall of the air cylinder 2, with the multiple semi-circular fins 4 arranged alternately along the axis of the air cylinder 2.

[0032] The alternating semi-circular fins 4 drive the incoming gas to form a vortex, which increases the contact time and contact area between the gas and the single-head heating tube 3, thereby reducing heat loss and increasing thermal efficiency.

[0033] The semi-circular fins 4, the single-head heating tube 3, and the inner wall of the air cylinder 2 are all coated with ceramic coating, which ensures both thermal conductivity and corrosion resistance, avoids the disadvantage of easy sulfurization of traditional stainless steel materials, and increases the overall service life.

[0034] Example 3:

[0035] The retention component includes: a retention frame located between the single-head heating tube 3 and the air cylinder 2, and multiple semi-circular fins 4 are fixedly connected to the retention frame. The multiple semi-circular fins 4 are alternately arranged along the axis of the single-head heating tube 3.

[0036] The retention rack and the semi-circular fin 4 are connected by welding. The retention rack, the semi-circular fin 4 and the single-head heating tube 3 are all coated with ceramic coating, which ensures both thermal conductivity and corrosion resistance, avoids the disadvantage of easy sulfurization of traditional stainless steel materials, and increases the overall service life.

[0037] like Figures 1 to 3 As shown, during operation, gas enters from the inlet 201 and is transported along the gas transport space. During the gas transport process, the gas contacts the semi-circular fins 4 to form a vortex, which increases the contact time and contact area between the gas and the single-head heating tube 3, reduces heat loss, increases thermal efficiency, and finally exits from the outlet 202.

[0038] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. A high-power gas heater made using a single-ended heating tube, used for gas heating, characterized in that, include: An air cylinder is provided with an air inlet and an air outlet. A single-ended heating tube is fitted inside the air cylinder. A space for gas delivery is left between the single-ended heating tube and the air cylinder. A gas retention component is provided in the space.

2. The high-power gas heater made using a single-ended heating tube according to claim 1, characterized in that, The retention component includes: multiple semi-circular fins fixed to the outer surface of the single-head heating tube, with the multiple semi-circular fins arranged alternately along the axis of the single-head heating tube.

3. The high-power gas heater made using a single-ended heating tube according to claim 1, characterized in that, The retention component includes: multiple semi-circular fins fixed to the inner wall of the air cylinder, with the multiple semi-circular fins arranged alternately along the axis of the air cylinder.

4. The high-power gas heater made using a single-ended heating tube according to claim 1, characterized in that, The retention component includes a retention frame located between the single-head heating tube and the air cylinder, wherein the retention frame is fixedly connected with multiple semi-circular fins, and the multiple semi-circular fins are alternately arranged along the axis of the single-head heating tube.

5. The high-power gas heater made using a single-ended heating tube according to claim 1, characterized in that, The air cylinder is fitted with a metal outer shell, and both the air cylinder and the single-ended heating tube are fixedly installed inside the metal outer shell.

6. The high-power gas heater made using a single-ended heating tube according to claim 5, characterized in that, An insulation layer is provided between the metal outer shell and the air cylinder.

7. The high-power gas heater made using a single-ended heating tube according to claim 5, characterized in that, The metal casing is fixedly connected with a retaining plate.

8. The high-power gas heater made using a single-ended heating tube according to claim 5, characterized in that, The metal casing is fixedly equipped with a press-type thermocouple that communicates with the internal space.

9. The high-power gas heater made using a single-ended heating tube according to claim 1, characterized in that, The single-head heating element is entirely coated with a ceramic coating.

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