Gas-fired air heater

Abstract

The application discloses a gas hidden fire air heating device and relates to the field of no open fire stove, which comprises a shell, one end of the shell is provided with a gas feeding device, the shell is connected with a gas pipe through the gas feeding device, the inner side of the shell is provided with a safety probe, a plurality of grid plates are arranged in the shell, a no open fire cover is arranged in the shell, air inlets are formed in the side of the shell, and filter screens are arranged outside the air inlets on the shell. The shell is fed with air through the gas feeding device and the gas pipe. When working, air enters through the air inlets on the two sides of the shell to meet the combustion condition. The safety probe in the shell can monitor the safety of the gas in the shell in real time. The plurality of grid plates arranged in the shell can increase the air contact area and improve the heat exchange efficiency. The filter screens outside the air inlets can filter the impurities outside the shell and improve the combustion effect in the shell.

Description

Technical Field

[0001] This application relates to the field of flameless stoves, and in particular to gas-fired smoldering air heating devices. Background Technology

[0002] Infrared gas stoves, which operate without an open flame, utilize infrared radiation combustion technology, allowing for efficient operation without a visible flame. This design prevents the flame from being blown out by wind, avoiding issues like yellowing flames and accidental extinguishing, thus improving safety. During operation, gas first enters the stove through the intake pipe, then, controlled by a regulating valve, mixes with air in the burner head. The resulting mixture is ignited by the ignition device at the burner's flame holes, forming a flame. Notably, these infrared gas stoves are equipped with a fire-resistant infrared radiation plate. When the flame comes into contact with food, it quickly converts into infrared radiation, significantly improving cooking efficiency while maximizing the preservation of nutrients in the food.

[0003] The current smoldering air heating devices have insufficient heating efficiency and require the installation of filters at the air inlet to filter out larger impurities in the air. Most of these filters are installed on the side of the smoldering air heating device with screws. After long-term use, they need to be cleaned, which requires removing multiple screws and cleaning the filters, making it quite troublesome. Utility Model Content

[0004] To address the problem that most filters are installed on the side of the gas-fired air heating device via screws, requiring cleaning after prolonged use, which necessitates removing multiple screws and cleaning the filter, this application provides a gas-fired air heating device.

[0005] The gas-fired smoldering air heating device provided in this application adopts the following technical solution:

[0006] The device includes an outer casing, one end of which is equipped with a gas supply device. The outer casing is connected to a gas pipe via the gas supply device. A safety probe is installed on the inner side of the outer casing. Multiple grilles are installed inside the outer casing. A flameless cover is also installed inside the outer casing. An air inlet is provided on the side of the outer casing. A filter screen is installed on the outer casing outside the air inlet.

[0007] By adopting the above technical solution, the internal safety probe can monitor the internal gas safety situation in real time, and at the same time, the air contact surface is increased and the heat exchange efficiency is improved by using multiple evenly arranged grid plates inside.

[0008] Preferably, there are two gas delivery devices and two gas pipes, which are arranged symmetrically to each other, and the gas pipes extend into the interior of the outer casing.

[0009] By adopting the above technical solution, gas is supplied to the inside of the outer casing through the gas supply device and gas pipe. During operation, air enters through the air inlets on both sides of the outer casing to meet the combustion conditions.

[0010] Preferably, there are two air inlets, which are opened opposite to each other, and the multiple grille plates are evenly distributed.

[0011] By adopting the above technical solution, air is introduced through the air inlets on both sides of the outer casing, thus meeting the combustion conditions.

[0012] Preferably, both sides of the outer casing are equipped with mounting frames and fixing frames, and the filter screen is installed inside the mounting frames.

[0013] By adopting the above technical solution, the filter screen on the outside of the air inlet can filter external impurities and improve the internal combustion effect.

[0014] Preferably, a first mounting plate is provided at the four inner corners of the mounting frame, and a second mounting plate is installed at the four inner corners of the fixed frame. A first connecting member is installed on the first mounting plate, and a second connecting member is installed on the second mounting plate. The first connecting member and the second connecting member are connected by a spring.

[0015] By adopting the above technical solution, the force of the spring causes the mounting frame and filter screen to quickly return to their original positions. The mounting frame and the inner side of the outer shell come into contact, generating vibration, which shakes the impurities on the filter screen off.

[0016] Preferably, a through hole is provided in the middle of the fixed frame, and a pull rod is installed inside the through hole, with one end of the pull rod connected to the middle of the mounting frame.

[0017] By adopting the above technical solution, pulling the pull rod moves it inside the through hole. One end of the pull rod drives the mounting frame and filter screen to move. As the mounting frame moves, the springs at its four corners contract.

[0018] Preferably, a transparent protective cover is installed on the inner side of the fixed frame, and an outlet is provided at the bottom between the mounting frame and the fixed frame.

[0019] By adopting the above technical solution, the transparent protective cover allows observation of the filter screen, and at the same time, it can block impurities when cleaning the filter screen, allowing them to fall to the outside through the lower outlet.

[0020] In summary, this application includes at least one of the following beneficial technical effects:

[0021] 1. This application supplies gas to the interior of the casing through a gas supply device and a gas pipe. During operation, air enters through the air inlets on both sides of the casing to meet the combustion conditions. The internal safety probe can monitor the internal gas safety in real time. At the same time, multiple evenly arranged grid plates inside increase the air contact surface and improve the heat exchange efficiency. The filter screen on the outside of the air inlet can filter external impurities and improve the internal combustion effect.

[0022] 2. This application utilizes a pull rod to move it within the through hole. One end of the pull rod moves the mounting frame and filter screen. As the mounting frame moves, the springs at its four corners contract. When the mounting frame moves to a certain extent, the pull rod is released, and the force of the springs causes the mounting frame and filter screen to quickly return to their original positions. The mounting frame contacts the inner side of the outer casing, generating vibration that dislodges impurities from the filter screen, which then fall to the outside through the lower opening, facilitating filter screen cleaning. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the gas-fired smoldering air heating device according to an embodiment of this application;

[0024] Figure 2 This is a schematic diagram illustrating the side cross-sectional structure of the embodiments of this application;

[0025] Figure 3 This is a schematic diagram illustrating the main structure of the installation frame in the embodiments of this application;

[0026] Figure 4 This is a schematic diagram illustrating the disassembled structure of the installation frame and the fixing frame, which are the main components of this application embodiment.

[0027] Reference numerals: 1. Outer shell; 2. Gas supply device; 3. Gas pipe; 4. Grille; 5. Safety probe; 6. No open flame cover; 7. Air inlet; 8. Mounting frame; 9. Filter screen; 10. First mounting plate; 11. First connector; 12. Spring; 13. Fixing frame; 14. Second mounting plate; 15. Second connector; 16. Through hole; 17. Pull-out rod; 18. Transparent protective cover; 19. Outlet. Detailed Implementation

[0028] The following is in conjunction with the appendix Figures 1-4 This application will be described in further detail.

[0029] This application discloses a gas-fired smoldering air heating device. Please refer to the embodiments therein. Figure 1 and Figure 2The system includes an outer shell 1, with a gas supply device 2 installed at one end. A gas pipe 3 is connected to the outer shell 1 via the gas supply device 2. A safety probe 5 is installed on the inner side of the outer shell 1. Multiple grilles 4 are installed inside the outer shell 1, and a flameless hood 6 is also installed inside. An air inlet 7 is located on the side of the outer shell 1, and a filter screen 9 is installed outside the air inlet 7. There are two gas supply devices 2 and two gas pipes 3, symmetrically arranged. The gas pipes 3 extend into the interior of the outer shell 1. The multiple grilles 4 are evenly distributed. Gas is supplied to the interior of the outer shell 1 through the gas supply device 2 and the gas pipe 3. During operation, air enters through the air inlets 7 on both sides of the outer shell 1, meeting the combustion conditions. The safety probe 5 monitors the internal gas safety status in real time. The multiple evenly arranged grilles 4 increase the air contact surface, improving heat exchange efficiency. The filter screen 9 outside the air inlet 7 filters external impurities, improving the internal combustion effect.

[0030] Please refer to Figure 1 , Figure 3 and Figure 4 The outer casing 1 has mounting frames 8 and fixing frames 13 installed on both sides. A filter screen 9 is installed inside the mounting frame 8. A first mounting plate 10 is located at each of the four inner corners of the mounting frame 8, and a second mounting plate 14 is installed at each of the four inner corners of the fixing frame 13. A first connecting piece 11 is installed on the first mounting plate 10, and a second connecting piece 15 is installed on the second mounting plate 14. The first connecting piece 11 and the second connecting piece 15 are connected by a spring 12. A through hole 16 is opened in the middle of the fixing frame 13, and a pull rod 17 is installed inside the through hole 16. One end of the pull rod 17 is connected to the middle of the mounting frame 8. The inner side of the fixing frame 13 is... Equipped with a transparent protective cover 18, the lower part between the mounting frame 8 and the fixed frame 13 has an outlet 19. When there are many impurities on the filter screen 9, pulling the pull rod 17 causes it to move inside the through hole 16. One end of the pull rod 17 drives the mounting frame 8 and the filter screen 9 to move. As the mounting frame 8 moves, the springs 12 at its four corners contract. When the mounting frame 8 moves to a certain extent, the pull rod 17 is released. Through the force of the springs 12, the mounting frame 8 and the filter screen 9 quickly return to their original positions. The mounting frame 8 contacts the inner side of the outer shell 1, generating vibration, which shakes the impurities on the filter screen 9 down and they fall to the outside through the lower outlet 19.

[0031] The implementation principle of the gas-fired smoldering air heating device in this embodiment is as follows: gas is supplied to the interior of the outer casing 1 through the gas supply device 2 and the gas pipe 3. During operation, air enters through the air inlets 7 on both sides of the outer casing 1 to meet the combustion conditions. The internal safety probe 5 can monitor the internal gas safety status in real time. At the same time, multiple evenly arranged grid plates 4 inside increase the air contact surface and improve the heat exchange efficiency. The filter screen 9 on the outside of the air inlet 7 can filter external impurities and improve the internal combustion effect. When there are many impurities on the filter screen 9, the pull rod 17 is pulled. The pull rod 17 moves inside the through hole 16. One end of the pull rod 17 drives the mounting frame 8 and the filter screen 9 to move. As the mounting frame 8 moves, the springs 12 at its four corners contract. When the mounting frame 8 moves to a certain extent, the pull rod 17 is released. Through the force of the springs 12, the mounting frame 8 and the filter screen 9 quickly return to their original positions. The mounting frame 8 contacts the inner side of the outer casing 1, generating vibration, which shakes the impurities on the filter screen 9 down and they fall to the outside through the lower outlet 19.

[0032] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A gas-fired smoldering air heating device, characterized in that: The device includes an outer shell (1), one end of which is equipped with a gas supply device (2). The outer shell (1) is connected to a gas pipe (3) through the gas supply device (2). A safety probe (5) is installed on the inner side of the outer shell (1). Multiple grille plates (4) are installed inside the outer shell (1). A flameless cover (6) is also installed inside the outer shell (1). An air inlet (7) is opened on the side of the outer shell (1). A filter screen (9) is installed on the outer shell (1) outside the air inlet (7).

2. The gas-fired smoldering air heating device according to claim 1, characterized in that: There are two gas delivery devices (2) and gas pipes (3), which are arranged symmetrically to each other, and the gas pipes (3) extend into the interior of the outer shell (1).

3. The gas-fired smoldering air heating device according to claim 2, characterized in that: There are two air inlets (7), which are opened opposite each other, and the multiple grille plates (4) are evenly distributed.

4. The gas-fired smoldering air heating device according to claim 1, characterized in that: The outer casing (1) is equipped with an installation frame (8) and a fixing frame (13) on both sides, and the filter screen (9) is installed on the inner side of the installation frame (8).

5. The gas-fired smoldering air heating device according to claim 4, characterized in that: The mounting frame (8) has a first mounting plate (10) at the four inner corners, and the fixed frame (13) has a second mounting plate (14) at the four inner corners. The first mounting plate (10) has a first connector (11) installed on it, and the second mounting plate (14) has a second connector (15) installed on it. The first connector (11) and the second connector (15) are connected by a spring (12).

6. The gas-fired smoldering air heating device according to claim 5, characterized in that: The fixed frame (13) has a through hole (16) in the middle, and a pull rod (17) is installed inside the through hole (16). One end of the pull rod (17) is connected to the middle of the mounting frame (8).

7. The gas-fired smoldering air heating device according to claim 6, characterized in that: A transparent protective cover (18) is installed on the inner side of the fixed frame (13), and an outlet (19) is provided at the lower part between the mounting frame (8) and the fixed frame (13).

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