High-temperature gas heater

Abstract

The utility model discloses a high-temperature gas heater which comprises an installation pipe, one end of the installation pipe is open, a heating mechanism is installed at the open end of the installation pipe, the other end of the installation pipe is connected with a gas outlet pipe, the gas outlet pipe is communicated with the interior of the installation pipe, and the periphery of the end, close to the open end, of the installation pipe is connected with a gas inlet pipe. The gas inlet pipe is communicated with the interior of the mounting pipe, a gas outlet thermometer is arranged on the gas outlet pipe, a heating rod thermometer is mounted at the end, close to the gas outlet pipe, of the mounting pipe, the lower end of the heating rod thermometer is located in the mounting pipe, and the open end of the mounting pipe is connected with an extension ring. The heating rod is positioned in the mounting pipe, and the cover plate is fixed with the extension ring.

Description

Technical Field

[0001] This utility model relates to the field of heater technology, and more specifically, to a high-temperature gas heater. Background Technology

[0002] The function of a gas heater is to heat gas, that is, to heat the gas to the required temperature in a short period of time before sending it into the furnace. Most existing gas heaters use a coil-and-electric furnace heating method. When the furnace temperature reaches 800℃, the gas temperature is only 300-400℃, resulting in very low heat exchange efficiency. Moreover, this type of heater is large in size, which is not conducive to on-site installation. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a high-temperature gas heater.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] This utility model discloses a high-temperature gas heater, including an installation tube with an opening at one end. A heating mechanism is installed at the open end of the installation tube, and a gas outlet pipe is connected to the other end of the installation tube, which is in communication with the interior of the installation tube. A gas inlet pipe is connected to the outer periphery of the installation tube near the opening end, which is also in communication with the interior of the installation tube. A gas outlet thermometer is installed on the gas outlet pipe, and a heating rod thermometer is installed at the end of the installation tube near the gas outlet pipe, with the lower end of the heating rod thermometer located inside the installation tube. An extension ring is connected to the open end of the installation tube. The heating mechanism includes a cover plate and a heating rod, with the heating rod located inside the installation tube. The cover plate and the extension ring are fixed together.

[0006] Furthermore, the extension ring and the cover plate are fixed together by fixing bolts. Corresponding mounting holes are provided on the extension ring and the cover plate, and the fixing bolts are set through the mounting holes.

[0007] Furthermore, several baffles are provided at the upper part of the inner wall of the installation tube, and a groove is provided at the lower part of the baffles. The side wall of the groove is in contact with the outer periphery of the heating rod. Several baffles are connected at the lower part of the inner wall of the installation tube. A groove is provided at the upper part of the baffles. The side wall of the groove is in contact with the outer periphery of the heating rod.

[0008] Furthermore, a connecting rod is connected between the blocks, and an arc-shaped hole is provided on the cover plate. One end of the connecting rod is set through the arc-shaped hole, and a fixing nut is threaded to the part of the connecting rod that extends through the arc-shaped hole. A limit ring is connected to the part of the connecting rod located inside the arc-shaped hole.

[0009] Furthermore, a sealing cover is installed on the side of the cover plate away from the installation tube, and the sealing cover can cover the arc-shaped hole.

[0010] Furthermore, the cover plate is equipped with locking blocks, and the two ends of the sealing cover engage with the locking blocks.

[0011] Furthermore, the areas of the first and second blocks are greater than half the area of ​​the installation pipe cross-section.

[0012] The beneficial effects of this utility model are: by heating the gas inside the installation tube with a heating rod, the gas enters the installation tube from the gas inlet pipe and rises to the specified temperature through heat exchange with the heating rod at a higher temperature, thereby achieving the effect of rapid gas heating. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of a high-temperature gas heater in this embodiment;

[0014] Figure 2 This is a cross-sectional view of the mounting pipe in this embodiment;

[0015] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0016] Figure 4 This is a side view of the cover plate in this embodiment;

[0017] Figure 5 This is a schematic diagram of the installation of stop block one and stop block two in this embodiment;

[0018] Figure 6 This is a cross-sectional view of the mounting pipe in this embodiment.

[0019] Reference numerals in the attached drawings: 1. Gas outlet thermometer; 2. Heating rod thermometer; 3. Gas outlet pipe; 4. Mounting pipe; 5. Gas inlet pipe; 6. Heating mechanism; 7. Heating rod; 8. Cover plate; 9. Arc-shaped hole; 10. Sealing cover; 11. Extension ring; 12. Fixing bolt; 13. Connecting rod; 14. Fixing nut; 15. Clamp; 16. Mounting hole; 17. Stop block one; 18. Groove one; 19. Stop block two; 20. Groove two; 21. Limiting ring. Detailed Implementation

[0020] 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.

[0021] like Figures 1-6As shown, a high-temperature gas heater includes an installation pipe 4 with an open end. A heating mechanism 6 is installed at the open end of the installation pipe 4, and a gas outlet pipe 3 is connected to the other end of the installation pipe 4, communicating with the interior of the installation pipe 4. A gas inlet pipe 5 is connected to the outer periphery of the installation pipe 4 near the open end, communicating with the interior of the installation pipe 4. An extension ring 11 is connected to the open end of the installation pipe 4. The heating mechanism 6 includes a cover plate 8 and a heating rod 7, which is located inside the installation pipe 4. The cover plate 8 is fixed to the extension ring 11. Specifically, the extension ring 11 and the cover plate 8 are fixed together by fixing bolts 12. Corresponding mounting holes 16 are provided on the extension ring 11 and the cover plate 8, and the fixing bolts 12 pass through the mounting holes 16.

[0022] The gas is heated inside the mounting tube 4 by the heating rod 7. The gas enters the mounting tube 4 from the gas inlet pipe 5 and is heated to the specified temperature by heat exchange with the heating rod 7, thereby achieving the effect of rapid gas heating.

[0023] A gas outlet thermometer 1 is installed on the gas outlet pipe 3 to measure the actual temperature of the gas outlet.

[0024] A heating rod thermometer 2 is installed at one end of the mounting tube 4 near the gas outlet pipe 3. The lower end of the heating rod thermometer 2 is located inside the mounting tube 4 and is in contact with the heating rod 7. The actual temperature of the heating rod 7 is measured by the heating rod thermometer 2, thereby limiting the maximum temperature of the heating rod 7.

[0025] Several first-stage stops 17 are provided on the upper part of the inner wall of the mounting tube 4. The radial direction of the first-stage stops 17 is perpendicular to the axial direction of the mounting tube 4. A groove 18 is formed at the lower part of the first-stage stops 17. The side wall of the groove 18 is in contact with the outer periphery of the heating rod 7. Several second-stage stops 19 are connected to the lower part of the inner wall of the mounting tube 4. The radial direction of the second-stage stops 19 is perpendicular to the axial direction of the mounting tube 4. A groove 20 is formed at the upper part of the second-stage stops 19. The side wall of the groove 20 is in contact with the outer periphery of the heating rod 7. The first-stage stops 17 and the second-stage stops 19 are arranged alternately inside the mounting tube 4.

[0026] The areas of baffle 1 (17) and baffle 2 (19) are greater than half the area of ​​the cross-section of the mounting tube 4, causing them to partially overlap in projection, thus blocking the airflow. The air needs to bend as it travels, thereby extending the time it spends inside the mounting tube 4 and achieving more heating time.

[0027] A connecting rod 13 is connected between the stop blocks 17. An arc-shaped hole 9 is provided on the cover plate 8. One end of the connecting rod 13 extends through the arc-shaped hole 9. A limit ring 21 is connected to the portion of the connecting rod 13 inside the arc-shaped hole 9. The portion of the connecting rod 13 extending through the arc-shaped hole 9 is threaded, through which a fixing nut 14 is connected to the connecting rod 13. The fixing nut 14 and the limit ring 21 are located on opposite sides of the cover plate 8, thus securing the connecting rod 13. At least two fixing nuts 14 are used to ensure effective fixation of the connecting rod 13.

[0028] By adjusting the position of the connecting rod 13 within the arc-shaped hole 9, the installation position of the first baffle 17 can be changed, thereby altering the overlapping area between the first baffle 17 and the second baffle 19. This changes the airflow within the installation pipe 4, altering the time it takes for the gas to pass through the installation pipe 4, and consequently changing the gas's heat exchange time. This allows for the adjustment of the temperature of the gas as it exits from the gas outlet pipe 3.

[0029] A sealing cover 10 is installed on the side of the cover plate 8 away from the mounting pipe 4, and the sealing cover 10 can cover the arc-shaped hole 9. The sealing cover 10 is made of heat-insulating material and can prevent heat from the mounting pipe 4 from escaping through the arc-shaped hole 9.

[0030] The cover plate 8 is provided with a locking block 15. Both ends of the sealing cover 10 are engaged with the locking block 15. The locking block 15 locks the inner wall of the sealing cover 10, thereby completing the fixation of the sealing cover 10.

[0031] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A high temperature gas heater characterized by, The installation pipe (4) is provided with an opening at one end, a heating mechanism (6) is installed at the opening end of the installation pipe (4), a gas outlet pipe (3) is connected to the other end of the installation pipe (4), the gas outlet pipe (3) is in communication with the inside of the installation pipe (4), a gas inlet pipe (5) is connected to the outer periphery of the installation pipe (4) near the opening end, the gas inlet pipe (5) is in communication with the inside of the installation pipe (4), a gas outlet thermometer (1) is arranged on the gas outlet pipe (3), a heating rod thermometer (2) is installed on the installation pipe (4) near the gas outlet pipe (3), the lower end of the heating rod thermometer (2) is located in the installation pipe (4), an extension ring (11) is connected to the opening end of the installation pipe (4), the heating mechanism (6) comprises a cover plate (8) and a heating rod (7), the heating rod (7) is located in the installation pipe (4), and the cover plate (8) is fixed with the extension ring (11).

2. The high temperature gas heater of claim 1, wherein The extension ring (11) and the cover plate (8) are fixed by a fixing bolt (12), corresponding mounting holes (16) are formed in the extension ring (11) and the cover plate (8), and the fixing bolt (12) passes through the mounting holes (16).

3. The high temperature gas heater of claim 1, wherein A plurality of stoppers one (17) are arranged at the upper position of the inner wall of the installation pipe (4), a groove one (18) is formed in the lower part of the stopper one (17), the side wall of the groove one (18) is in close contact with the outer periphery of the heating rod (7), a plurality of stoppers two (19) are connected to the lower position of the inside of the installation pipe (4), a groove two (20) is formed in the upper part of the stopper two (19), and the side wall of the groove two (20) is in close contact with the outer periphery of the heating rod (7).

4. The high temperature gas heater of claim 3, wherein The stoppers one (17) are connected by a connecting rod (13), an arc-shaped hole (9) is formed in the cover plate (8), one end of the connecting rod (13) passes through the arc-shaped hole (9) and is arranged, a fixed nut (14) is threadedly connected to the part of the connecting rod (13) passing through the arc-shaped hole (9), and a limiting ring (21) is connected to the part of the connecting rod (13) located in the arc-shaped hole (9).

5. The high temperature gas heater of claim 4, wherein, A sealing cover (10) is installed on the side of the cover plate (8) away from the installation pipe (4), and the sealing cover (10) can cover the arc-shaped hole (9).

6. The high temperature gas heater of claim 5, wherein, A clamping block (15) is arranged on the cover plate (8), and the two ends of the sealing cover (10) are clamped with the clamping block (15).

7. The high temperature gas heater of claim 3, wherein The areas of the stoppers one (17) and the stoppers two (19) are greater than half of the area of the cross section of the installation pipe (4).

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