Gas appliance fire grate using hydrogen
By designing a gas ignition discharge with an apertured sealing cover and a longitudinal aperture splitting plate, combined with an anti-temperature network, the diffusion combustion of hydrogen is achieved, solving the deflagation and tempering problems during hydrogen combustion, and ensuring the safety and stability of combustion.
Patent Information
- Application Number
- CN202422523395.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-18
- Publication Date
- 2025-08-15
- Estimated Expiration
- 2034-10-18
AI Technical Summary
Traditional fire vents are prone to deflagration and backfire when using hydrogen, and cannot be used normally.
The diffusion combustion method is adopted, through the design of a hole-sealed cap and a longitudinal hole fire separation plate, combined with an anti-fire backfire net, air is prevented from entering the fire drain and divided into small air outlets to achieve diffusion combustion of the flame.
It effectively prevents the return of air when the fire is turned off, avoids the problem of turning off the fire and firing fire, and ensures the safety and stability of hydrogen combustion.
Smart Images
Figure CN223228406U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of gas appliance accessories using hydrogen, in particular to a gas appliance fire grate using hydrogen. Background Art
[0002] Wall-mounted boilers and water heaters are among the most important household items in our lives today. They are used for bathing, washing vegetables, and heating. They are widely used throughout society, making them particularly important. The fire grate, also known as the burner, is the most crucial component of hydrogen gas appliances, responsible for diverting and burning the gas.
[0003] Hydrogen is a clean, renewable energy source that burns quickly and is prone to deflagration. Conventional water heater grate systems typically use atmospheric combustion, requiring ample primary air, which is then thoroughly mixed and then supplemented with secondary air at the burner outlet for full combustion. While these grate systems are suitable for fuels such as natural gas, liquefied petroleum gas, and manufactured coal gas, hydrogen can cause deflagration and flashback, rendering them inoperable. Therefore, a gas grate designed for hydrogen is being proposed. Utility Model Content
[0004] The purpose of the present invention is to provide a gas burner using hydrogen to solve the problems raised in the above background technology.
[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:
[0006] A fire grate of a gas appliance using hydrogen comprises a fire grate, a perforated sealing cover, a fire distribution cover and a fire distribution plate with longitudinal holes. The air inlet of the fire grate is provided with the perforated sealing cover, the air outlet of the fire grate is provided with the fire distribution cover, and the inner side of the fire distribution cover is provided with a fire distribution plate with longitudinal holes.
[0007] A further improvement of the technical solution of the present invention is that the edge of the perforated sealing cover is tightly connected to the edge of the fire exhaust air inlet, an air inlet hole is provided at the center of the perforated sealing cover, and the aperture of the air inlet hole is just large enough to install the air inlet nozzle without leaving any gap.
[0008] A further improvement of the technical solution of the present utility model is that: a plurality of transverse long holes are opened on the surface of the fire dividing cover, and a plurality of longitudinal long holes are opened on the surface of the longitudinal hole fire dividing plate. The transverse long holes and the longitudinal long holes are cross-distributed and divided into smaller air outlet holes.
[0009] A further improvement of the technical solution of the present utility model is that a backfire prevention net is provided on the inner side of the fire distribution cover.
[0010] Due to the adoption of the above technical solution, the present invention has achieved the following technical advancements compared to the prior art:
[0011] The utility model provides a gas fire grate using hydrogen, which adopts a diffusion combustion mode, and prevents air from entering the interior of the fire grate through a sealing cover with holes. The horizontal long strip holes on the fire-distributing cover and the longitudinal long strip holes on the longitudinal hole fire-distributing plate are cross-distributed and separated from each other into small air outlet holes. Such a structure is not easy to backfire, and an anti-backfire net is added to effectively prevent the problem of fire-off explosion caused by the backflow of air when the fire is turned off. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 This is a schematic structural diagram of a hydrogen-based gas burner according to the present invention;
[0013] Figure 2 This is a front structural diagram of the fire grate of a gas burner using hydrogen according to the present invention.
[0014] In the figure: 1. Fire grate; 2. Longitudinal hole fire dividing plate; 3. Anti-backfire net; 4. Fire dividing cover; 5. Sealing cover with holes; 6. Air inlet hole; 7. Longitudinal long hole; 8. Horizontal long hole; 9. Fire guide hole. DETAILED DESCRIPTION
[0015] The present invention is further described in detail below with reference to the embodiments:
[0016] Example 1
[0017] like Figure 1-2 As shown, the utility model provides a gas fire grate using hydrogen, comprising a fire grate 1, a perforated sealing cover 5, a fire distribution cover 4 and a longitudinal hole fire distribution plate 2. The air inlet of the fire grate 1 is provided with a perforated sealing cover 5, the air outlet of the fire grate 1 is provided with a fire distribution cover 4, the inner side of the fire distribution cover 4 is provided with a longitudinal hole fire distribution plate 2, the edge of the perforated sealing cover 5 is tightly connected to the edge of the air inlet of the fire grate 1 without leaving any gap, and an air inlet hole 6 is provided at the center of the perforated sealing cover 5, the aperture of the air inlet hole 6 is just large enough to install the air inlet nozzle without leaving any gap. To improve the sealing effect, a plurality of transverse long holes 8 are provided on the surface of the fire-dividing cover 4, and a plurality of longitudinal long holes 7 are provided on the surface of the longitudinal hole fire-dividing plate 2. The transverse long holes 8 and the longitudinal long holes 7 are cross-distributed and divided into smaller air outlet holes to achieve the effect of flame diffusion combustion. An anti-backfire net 3 is provided on the inner side of the fire-dividing cover 4. The anti-backfire net 3 can effectively prevent the problem of fire-off explosion caused by the backflow of air when the fire is turned off. A flame guide hole 9 is provided on the top of the fire bar 1, which plays the role of transferring flames between fire bars when ignited.
[0018] The following is a detailed description of the working principle of the gas fire grate using hydrogen.
[0019] like Figure 1-2As shown, an air intake nozzle is installed at the air intake hole 6, and the gas enters the fire bar 1 through the perforated sealing cover 5 for combustion. A number of transverse long holes 8 are opened on the surface of the fire dividing cover 4, and a number of longitudinal long holes 7 are opened on the surface of the longitudinal hole fire dividing plate 2. The transverse long holes 8 and the longitudinal long holes 7 are cross-distributed and divided into smaller air outlet holes, so that the flame burns in a diffuse manner. At the same time, an anti-backfire net 3 is set to effectively prevent the problem of fire-off explosion caused by the backflow of air when the fire is turned off.
[0020] The above generally describes the present invention in detail. However, it is obvious to those skilled in the art that modifications or improvements may be made to the present invention. Therefore, modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.
Claims
1. A gas grille for a hydrogen-based gas appliance, comprising a grille (1), a perforated sealing cover (5), a fire distributor cover (4), and a longitudinally perforated fire distributor plate (2), characterized in that: The air inlet of the fire grate (1) is provided with a sealing cover with holes (5), the air outlet of the fire grate (1) is provided with a fire distribution cover (4), and the inner side of the fire distribution cover (4) is provided with a fire distribution plate (2) with longitudinal holes.
2. The hydrogen-based gas burner according to claim 1, characterized in that: The edge of the perforated sealing cover (5) is tightly connected to the edge of the air inlet of the fire grate (1). An air inlet hole (6) is provided at the center of the perforated sealing cover (5). The aperture of the air inlet hole (6) is just large enough to install the air inlet nozzle without leaving any gap.
3. The hydrogen-based gas burner according to claim 1, characterized in that: The surface of the fire-dividing cover (4) is provided with a plurality of transverse long holes (8), and the surface of the longitudinal hole fire-dividing plate (2) is provided with a plurality of longitudinal long holes (7). The transverse long holes (8) and the longitudinal long holes (7) are cross-distributed and divided into smaller air outlet holes.
4. The hydrogen-based gas burner according to claim 1, characterized in that: A backfire prevention net (3) is provided on the inner side of the fire distribution cover (4).