Multi-stage mixed oxygenation combustion-supporting type gas combustion equipment and method thereof

Abstract

The multi-stage mixed oxygenation combustion-supporting type gas combustion equipment is provided with a control valve, the inlet end of the control valve is connected to a gas source through a pipeline, a valve body nozzle at the outlet end of the control valve is connected to a combustor, and a primary air suction valve hole is formed in the position, on the outer side of the valve body nozzle, of the inlet end of the combustor; the outlet end of a main channel of the combustor is connected to the furnace end, and a plurality of fire holes are formed in the tail end of the furnace end. The control valve is provided with a valve body main nozzle and at least one valve body secondary nozzle, the valve body main nozzle is connected to the main inlet end of the combustor, at least one secondary inlet end is arranged on the outer side of the combustor main body, the valve body secondary nozzle is connected to the valve body secondary inlet end, and air secondary suction valve holes are formed in the outer sides of the secondary inlet end and the valve body secondary nozzle; an igniter is arranged at the tail end of the combustor and corresponds to the fire hole of the furnace end; the control valve and the igniter are electrically connected with the power source. The air mixing degree of fuel gas before combustion can be effectively improved, the combustion sufficiency is guaranteed, and the combustion efficiency is improved.

Description

Technical Field

[0001] The invention relates to a combustion technology, in particular to a multi-stage mixed oxygen-enhanced combustion-supporting gas combustion device and a method thereof. Background Art

[0002] The basic working principle of the gas burner is: the gas enters the valve body through the ventilation pipe at a certain pressure and a certain flow rate, and then is ejected through the valve body nozzle and enters the burner. The gas absorbs primary air by its own injection negative pressure energy, and the gas and primary air are mixed in the burner, and then flow out evenly through the fire holes or fire seams of the fire cover, and finally mix with the secondary air and then burn fully and smoothly to form a blue flame.

[0003] As mentioned above, the existing gas equipment, such as gas stoves, etc., mainly rely on the suction of primary air from the connected gas main pipeline and the mixing of secondary air outside the fire cover to achieve relatively stable combustion; however, in some occasions that require greater firepower, the amount of air provided to assist combustion often results in insufficient oxygen supply, incomplete combustion, resulting in high carbon monoxide concentration, reduced combustion efficiency, and failure to meet people's optimal needs. Summary of the invention

[0004] The technical problem solved by the present invention is to provide a multi-stage mixed oxygen-enhanced combustion-supporting gas combustion device and method, which can effectively improve the air mixing degree of the gas before combustion, ensure the fullness of combustion, and improve combustion efficiency.

[0005] The technical solution of the present invention is:

[0006] A multi-stage mixed oxygen-enriched combustion-supporting gas combustion device, wherein a control valve is provided, the inlet end of the control valve is connected to a gas source via a pipeline, the valve body nozzle at the outlet end is connected to a burner, the inlet end of the burner is provided with a primary air intake valve hole outside the valve body nozzle; the outlet end of the main channel of the burner is connected to a burner head, and a plurality of fire holes are provided at the end of the burner head;

[0007] The control valve is provided with a valve body main nozzle and at least one valve body secondary nozzle, the valve body main nozzle is connected to the main inlet end of the burner, at least one secondary inlet end is provided on the outside of the burner body, the valve body secondary nozzle is connected to the valve body secondary inlet end, and the secondary inlet end and the outside of the valve body secondary nozzle are provided with an air secondary suction valve hole;

[0008] An igniter is provided at the end of the burner, and the igniter is arranged corresponding to the position of the fire hole of the burner head;

[0009] The control valve and the igniter are electrically connected to the power supply respectively.

[0010] As described above, in the multi-stage mixed oxygen-enriched combustion-supporting gas combustion equipment, when the control valve is opened, the valve body main nozzle and the valve body secondary nozzle are opened, and the gas passing through the control valve is injected into the main inlet end and the secondary inlet end of the burner through the valve body main nozzle and the valve body secondary nozzle, and the injection pressure of the valve body secondary nozzle is a fixed set ratio of the injection pressure of the valve body main nozzle.

[0011] In the multi-stage mixed oxygen-enriched combustion-supporting gas combustion equipment as described above, the control valve is provided with a fixed gear position for opening the valve body secondary nozzle. When the control valve is adjusted to the fixed gear position, the valve body main nozzle and the valve body secondary nozzle are opened at the same time.

[0012] In the multi-stage mixed oxygen-enriched combustion-supporting gas combustion equipment as described above, the control valve is provided with a valve body sub-nozzle pressure regulating switch, and the injection pressure of the valve body sub-nozzle.

[0013] As described above, in the multi-stage mixed oxygen-enriched combustion-supporting gas combustion equipment, the control valve is provided with a combined switch, and the combined switch is provided with a combined gear and a separated gear. After being adjusted to the combined gear, the main nozzle of the valve body and the secondary nozzle of the valve body are controlled in linkage, and after being adjusted to the separated gear, the main nozzle of the valve body and the secondary nozzle of the valve body are controlled independently respectively.

[0014] The multi-stage mixed oxygen-enriched combustion-supporting gas combustion equipment as described above, wherein each of the secondary inlet ends is provided with a secondary channel, and the secondary channel is an inclined channel that forms a set angle with the central axis of the burner and is connected to the main channel of the burner.

[0015] The multi-stage mixed oxygen-enriched combustion-supporting gas combustion equipment as described above, wherein a non-return bypass channel is provided at the end of the secondary channel, the non-return bypass channel forms an acute angle with the secondary channel at the end of the secondary channel, and forms an obtuse angle with the secondary channel on the inner side of the secondary channel; the non-return bypass is an arc-shaped bypass.

[0016] The multi-stage mixed oxygen-enriched combustion-supporting gas combustion equipment as described above, wherein two check bypasses are provided at the end of the secondary channel, and the inner diameter of the check bypass is 1.1-1.5 times that of the secondary channel.

[0017] The multi-stage mixed oxygen-enriched combustion-supporting gas combustion equipment as described above, wherein at least two or more valve body sub-nozzles are provided on the outer periphery of the burner, and each of the valve body sub-nozzles is evenly distributed in the circumferential direction around the outer side of the burner.

[0018] A multi-stage mixed oxygen-enhanced combustion-supporting gas combustion method is also provided, wherein the multi-stage mixed oxygen-enhanced combustion-supporting gas combustion equipment as described above is used, the gas from the gas source is mixed with air through the main channel of the burner, and then transmitted to the burner head for ignition and combustion via an igniter.

[0019] From the above description, it can be seen that the present invention has the following advantages:

[0020] The multi-stage mixed oxygen-enhanced combustion-supporting gas combustion equipment and method of the present invention, through ingenious design, sets a valve body secondary inlet end at the periphery of the burner, and connects to the valve body secondary nozzle from the control valve, thereby providing more air to be injected to mix with the gas in addition to the primary air volume that can be injected by the suction valve hole at the main inlet end, and providing sufficient combustion-supporting air for the subsequent combustion of the gas. This ensures that the gas will not be insufficiently burned due to lack of oxygen during the combustion process, especially when using high firepower, and will not be insufficiently burned, thereby improving the combustion efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of a preferred embodiment of the present invention;

[0022] Figure 2 This is a schematic diagram of the tilted arrangement structure of the secondary nozzle of the valve body in a preferred embodiment of the present invention;

[0023] Figure 3 It is a structural schematic diagram of a non-return bypass channel of a preferred embodiment of the present invention. DETAILED DESCRIPTION

[0024] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, specific embodiments of the present invention are now described with reference to the accompanying drawings.

[0025] The present invention proposes a multi-stage mixed oxygen-enhanced combustion-supporting gas combustion device, in which a preferred embodiment is as follows: Figure 1 As shown, the multi-stage mixed oxygen-enriched combustion-supporting gas combustion equipment of the present invention is provided with a control valve, the inlet end of the control valve is connected to the gas source via a pipeline, the main nozzle of the valve body at the outlet end is connected to the burner, and the main inlet end of the burner is provided with a primary air intake valve hole on the outside of the valve body nozzle; the outlet end of the main channel of the burner is connected to the burner head, and a plurality of fire holes are provided at the end of the burner head; as shown in the figure, the gas enters the control valve from the gas source, and then the valve body nozzle of the control valve sprays the gas into the inside of the burner, and at the same time, a large amount of primary air is drawn from the intake valve hole into the burner to be fully mixed with the gas.

[0026] The control valve is provided with a valve body main nozzle and at least one valve body secondary nozzle, the valve body main nozzle is connected to the main inlet end of the burner, at least one secondary inlet end is provided on the outside of the burner body, the valve body secondary nozzle is connected to the valve body secondary inlet end, and the secondary inlet end and the outside of the valve body secondary nozzle are provided with an air secondary suction valve hole; the end of the burner is provided with an igniter, and the igniter is arranged corresponding to the position of the fire hole of the burner head; the control valve and the igniter are respectively electrically connected to the power supply. As shown in the figure, preferably, the burner can be a tubular structure with a circular cross-section, and at least one secondary inlet end is arranged around it to dock with the valve body secondary nozzle led out from the control valve. The valve body secondary nozzle sprays gas into the secondary inlet end and then into the main channel of the burner. A secondary suction valve hole is also provided on the secondary inlet end to inject a corresponding amount of air into the burner. In this way, a multi-stage mixed oxygen-enhancing structure is formed, providing more combustion-supporting air to enter the burner and mix with the gas, so that it can burn more fully and achieve higher combustion efficiency.

[0027] As described above, in a preferred embodiment of the multi-stage mixed oxygen-enriched combustion-supporting gas combustion equipment of the present invention, when the control valve is opened, the valve body main nozzle and the valve body sub-nozzle are opened, and the gas passing through the control valve is injected into the main inlet end and the secondary inlet end of the burner through the valve body main nozzle and the valve body sub-nozzle, and the injection pressure of the valve body sub-nozzle is a fixed set ratio of the injection pressure of the valve body main nozzle. In a preferred case, the control valve can be a twist valve, such as the control button of the control valve of a conventional gas stove. When the control valve is opened, the valve body main nozzle and the valve body sub-nozzle are both started to inject gas into the burner at the same time, and the injection forms a multi-stage oxygen-enriched combustion-supporting structure, so that the air supply is increased, which can meet the use requirements of greater firepower and make the combustion complete.

[0028] As described above, in the preferred embodiment of the multi-stage mixed oxygen-enriched combustion-supporting gas combustion equipment of the present invention, the control valve is provided with a fixed gear position for opening the valve body secondary nozzle, and when the control valve is adjusted to the fixed gear position, the valve body main nozzle and the valve body secondary nozzle are opened at the same time. As another preferred situation above, when the control valve is opened, the valve body main nozzle is mainly opened to work, and the valve body secondary nozzle will not be opened until the control valve is twisted to the fixed gear position, that is, the user can start the valve body secondary nozzle according to the size of the firepower required, and generally the fixed gear position is the gear position that is started when a larger firepower is required.

[0029] As described above, in the preferred embodiment of the multi-stage mixed oxygen-enriched combustion-supporting gas combustion equipment of the present invention, the control valve is provided with a pressure regulating switch of the valve body sub-nozzle, and the injection pressure of the valve body sub-nozzle. In another control situation, when the valve body sub-nozzle is not opened or opened, the injection pressure of the valve body sub-nozzle can be adjusted separately through the pressure regulating switch. By adjusting the pressure of the valve body sub-nozzle, the amount of gas input can be controlled, and the injection speed can also be adjusted by the valve body pressure, thereby controlling the amount of primary air introduced from the secondary inlet end. The greater the pressure, the more primary air is introduced, and the demand for greater firepower adjustment is achieved.

[0030] In the preferred embodiment of the multi-stage mixed oxygen-enriched combustion-supporting gas combustion equipment of the present invention as described above, the control valve is provided with a combined switch, and the combined switch is provided with a combined gear and a separated gear. When the combined gear is adjusted to the combined gear, the valve body main nozzle and the valve body secondary nozzle are controlled in linkage, and when the separated gear is adjusted to the separated gear, the valve body main nozzle and the valve body secondary nozzle are controlled independently. In this embodiment, it is convenient for the user to directly determine whether to use the auxiliary combustion-supporting function of the valve body secondary nozzle, so as to use the full range of the valve body main nozzle function in both cases.

[0031] In the preferred embodiment of the multi-stage mixed oxygen-enhanced combustion-supporting gas combustion equipment of the present invention as described above, each of the secondary inlet ends is provided with a secondary channel, and the secondary channel is an inclined channel that forms a set angle with the central axis of the burner and is connected to the main channel of the burner. Figure 2 As shown, by setting the secondary channel at an angle to the central axis of the burner, the gas injected into the main channel through the secondary channel can form a rotating vortex in the main channel, which can not only accelerate the speed of the gas moving forward, but also make the mixing of air and fuel gas more complete.

[0032] In the preferred embodiment of the multi-stage mixed oxygen-enhanced combustion-supporting gas combustion equipment of the present invention as described above, a non-return bypass channel is provided at the end of the secondary channel, the non-return bypass channel forms an acute angle with the secondary channel at the end of the secondary channel and forms an obtuse angle with the secondary channel at the inner side of the secondary channel; the non-return bypass is an arc-shaped bypass. Figure 3As shown, by providing a non-return bypass channel at the end of the secondary channel, not only can the gas sprayed from the secondary channel to the main channel enter smoothly when the valve body secondary nozzle is started, but also the gas in the main channel can be prevented from entering and flowing in the reverse direction. As shown in the figure, the arc-shaped non-return bypass channel can form a fluid in the opposite direction of the entering fluid when the fluid entering the non-return bypass channel from the end of the secondary channel flows to the front end of the non-return disc channel, and counteract the fluid entering the secondary channel from the end of the secondary channel, preventing the fluid in the secondary channel from continuing to enter the secondary channel. It can effectively prevent the directional flow of the fluid, and at the same time will not inhibit the forward flow of the fluid, so that the fluid in the secondary channel can normally converge and mix in the main channel in the burner.

[0033] In the preferred embodiment of the multi-stage mixed oxygen-enriched combustion-supporting gas combustion equipment of the present invention as described above, two non-return bypass channels are provided at the end of the secondary channel, and the inner diameter of the non-return bypass channel is 1.1-1.5 times that of the secondary channel. As shown in the figure, the end of the secondary channel can be a smaller channel to form a channel with a nozzle effect to the inside of the burner. The two non-return bypass channels form a heart-shaped structure on both sides to form a double non-return effect to inhibit reverse flow.

[0034] In the multi-stage mixed oxygen-enhanced combustion-supporting gas combustion equipment of the present invention as described above, in a preferred embodiment, at least two or more valve body sub-nozzles are provided on the outer periphery of the burner, and each of the valve body sub-nozzles is evenly distributed in the circumferential direction around the outer side of the burner. In a preferred embodiment, the present invention can be provided with multiple valve body sub-nozzles, which are arranged according to specific firepower requirements to achieve a multi-stage mixed oxygen-enhanced combustion-supporting function that better meets actual use needs.

[0035] The present invention also provides a multi-stage mixed oxygen-enhanced combustion-supporting gas combustion method. In a preferred embodiment, the method uses the multi-stage mixed oxygen-enhanced combustion-supporting gas combustion equipment as described above, mixes the gas from the gas source with air through the main channel of the burner, transmits it to the burner head, and ignites and burns it through the igniter. A more sufficient gas combustion effect is achieved, the gas use efficiency is improved, and the user is provided with a combustion effect that is more in line with the actual use of firepower requirements, meeting the various high-firepower gas combustion requirements required for people's daily life and production.

[0036] The multi-stage mixed oxygen-enhanced combustion-supporting gas combustion equipment and method of the present invention, through ingenious design, sets a valve body secondary inlet end at the periphery of the burner, and connects to the valve body secondary nozzle from the control valve, thereby providing more air to be injected to mix with the gas in addition to the primary air volume that can be injected by the suction valve hole at the main inlet end, and providing sufficient combustion-supporting air for the subsequent combustion of the gas. This ensures that the gas will not be insufficiently burned due to lack of oxygen during the combustion process, especially when using high firepower, and will not be insufficiently burned, thereby improving the combustion efficiency.

[0037] The above description is only an illustrative embodiment of the present invention and is not intended to limit the scope of the present invention. Any equivalent changes and modifications made by any person skilled in the art without departing from the concept and principle of the present invention shall fall within the scope of protection of the present invention.

Claims

1. A multi-stage mixed oxygen-enriched combustion-supporting gas combustion equipment, characterized in that: A control valve is provided, the inlet end of the control valve is connected to the gas source via a pipeline, the valve body nozzle at the outlet end is connected to the burner, and the inlet end of the burner is provided with a primary air intake valve hole outside the valve body nozzle; the outlet end of the main channel of the burner is connected to the burner head, and the end of the burner head is provided with a plurality of fire holes; The control valve is provided with a valve body main nozzle and at least one valve body secondary nozzle, the valve body main nozzle is connected to the main inlet end of the burner, at least one secondary inlet end is provided on the outside of the burner body, the valve body secondary nozzle is connected to the valve body secondary inlet end, and the secondary inlet end and the outside of the valve body secondary nozzle are provided with an air secondary suction valve hole; An igniter is provided at the end of the burner, and the igniter is arranged corresponding to the position of the fire hole of the burner head; The control valve and the igniter are electrically connected to the power supply respectively.

2. The multi-stage mixed oxygen-enhanced combustion-supporting gas combustion equipment according to claim 1, characterized in that: When the control valve is opened, the valve body main nozzle and the valve body secondary nozzle are opened, and the gas passing through the control valve is injected into the main inlet end and the secondary inlet end of the burner through the valve body main nozzle and the valve body secondary nozzle, and the injection pressure of the valve body secondary nozzle is a fixed set proportion of the injection pressure of the valve body main nozzle.

3. The multi-stage mixed oxygen-enhanced combustion-supporting gas combustion equipment according to claim 2, characterized in that: The control valve is provided with a fixed gear position for opening the valve body secondary nozzle. When the control valve is adjusted to the fixed gear position, the valve body main nozzle and the valve body secondary nozzle are opened simultaneously.

4. The multi-stage mixed oxygen-enhanced combustion-supporting gas combustion equipment according to claim 1, characterized in that: The control valve is provided with a valve body sub-nozzle pressure regulating switch, and the injection pressure of the valve body sub-nozzle.

5. The multi-stage mixed oxygen-enhanced combustion-supporting gas combustion equipment according to claim 4, characterized in that: The control valve is provided with a combined switch, and the combined switch is provided with a combined gear and a separated gear. When adjusted to the combined gear, the main nozzle of the valve body and the secondary nozzle of the valve body are controlled in linkage, and when adjusted to the separated gear, the main nozzle of the valve body and the secondary nozzle of the valve body are controlled independently.

6. The multi-stage mixed oxygen-enhanced combustion-supporting gas combustion equipment according to claim 1, characterized in that: A secondary channel is provided in each of the secondary inlet ends. The secondary channel is an inclined channel that forms a set angle with the central axis of the burner and is connected to the main channel of the burner.

7. The multi-stage mixed oxygen-enhanced combustion-supporting gas combustion equipment according to claim 1, characterized in that: A non-return bypass channel is provided at the end of the secondary channel. The non-return bypass channel forms an acute angle with the secondary channel at the end of the secondary channel and an obtuse angle with the secondary channel at the inner side of the secondary channel. The non-return bypass is an arc-shaped bypass.

8. The multi-stage mixed oxygen-enhanced combustion-supporting gas combustion equipment according to claim 7, characterized in that: Two non-return bypass channels are arranged at the end of the secondary channel, and the inner diameter of the non-return bypass channel is 1.1-1.5 times of that of the secondary channel.

9. The multi-stage mixed oxygen-enhanced combustion-supporting gas combustion equipment according to claim 1, characterized in that: At least two or more valve body sub-nozzles are arranged on the outer periphery of the burner, and the valve body sub-nozzles are evenly distributed in the circumferential direction around the outer side of the burner.

10. A multi-stage mixed oxygen-enhanced combustion-supporting gas combustion method, characterized in that: By using the multi-stage mixed oxygen-enriched combustion-supporting gas combustion equipment as described in any one of claims 1 to 9, the gas from the gas source is mixed with air through the main channel of the burner, transmitted to the burner head, and ignited and burned by the igniter.

Images