Energy-saving burner for gas-fired boiler

Abstract

The utility model discloses an energy-saving burner for a gas-fired boiler, which comprises a gas mixing component, and the gas mixing component comprises a mixing pipeline, a fan, a shunting branch pipe, a gas jet orifice, an annular gas pipe, a gas inlet branch pipe, a gas inlet main pipe, a spiral mixing pipe, a burning head and a gas flow regulating valve. According to the utility model, the gas flow regulating valve and the air flow regulating valve are used for accurately controlling the gas inlet amount and the air inlet amount, and the proportion of the gas inlet amount and the air inlet amount can be regulated in real time according to boiler load, so that energy consumption requirements under different working conditions are met, sufficient combustion is ensured, the energy utilization rate is improved, and energy waste is reduced; the gas injection opening is obliquely formed and is consistent with the air flowing direction, gas and air are preliminarily mixed in the flowing process, the gas and the air are mixed more evenly through the spiral mixing channel of the spiral mixing pipe, the contact area is increased, the retention time is prolonged, conditions are created for efficient combustion, and compared with a traditional combustor, the combustion efficiency is greatly improved, and the combustion efficiency is greatly improved. And the emission of pollutants is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to gas boiler technical field, concretely is a kind of energy-saving combustor for gas boiler. BACKGROUND

[0002] Under the background of global resource shortage and energy crisis, energy saving and consumption reduction has become the core issue focused in the process of sustainable development of various industries. In the specific field of gas boiler, the burner, as the most critical core component, plays a decisive role in the performance, like the central nervous system, directly affecting the energy utilization efficiency of gas boiler, and further relating to the overall operation cost of gas boiler.

[0003] The traditional gas boiler burner has the problems of uneven mixing of gas and air, insufficient combustion during combustion process, low energy utilization rate, energy waste, and emission of more pollutants. At the same time, some burners are not flexible in load adjustment, which cannot adapt to the energy demand under different working conditions, further reducing the overall energy efficiency of the system. Therefore, an energy-saving combustor for gas boiler is proposed. SUMMARY

[0004] The utility model aims at providing an energy-saving combustor for gas boiler to solve one of the problems in the above background technology.

[0005] The utility model is implemented by the following technical scheme: an energy-saving combustor for gas boiler, comprising a gas mixing assembly, the gas mixing assembly comprises a mixing pipeline, a fan, a shunt branch pipe, a gas injection port, an annular gas pipe, a gas inlet branch pipe, a gas inlet main pipe, a spiral mixing pipe, a combustion head and a gas flow regulating valve.

[0006] One end of the mixing pipeline is provided with a fan, the outer wall of the mixing pipeline is circumferentially communicated with a plurality of shunt branch pipes near the fan, the gas injection ports are arranged at the gas outlet ends of the plurality of shunt branch pipes, the annular gas pipe is communicated with the gas inlet ends of the plurality of shunt branch pipes, the gas inlet main pipe is communicated with the gas inlet branch pipes on both sides of the outer wall of the annular gas pipe, the spiral mixing pipe is fixedly connected to the side of the inner wall of the mixing pipeline away from the fan, the combustion head is fixedly connected to the other end of the mixing pipeline, and the gas flow regulating valves are installed on the sides of the outer walls of the plurality of shunt branch pipes near the annular gas pipe.

[0007] As a further preferred embodiment of the present technical solution, an air flow regulating valve is installed at one end of the outer wall of the mixing pipeline near the fan.

[0008] As a further preferred of the technical solution: the inside of the spiral mixing pipe is provided with a spiral mixing channel, and a plurality of injection holes are formed on the side of the combustion head away from the mixing pipe.

[0009] As a further preferred of the technical solution: the outside wall of the gas inlet main pipe is provided with a gas total valve on the side close to the annular gas pipe.

[0010] As a further preferred of the technical solution: the outside wall of the mixing pipe is provided with an ignition device on the side close to the combustion head.

[0011] As a further preferred of the technical solution: the front surface of the fan is provided with a driving motor at the center.

[0012] As a further preferred of the technical solution: the outside wall of the mixing pipe is fixedly connected with a boiler connecting disc on the side close to the combustion head, and a plurality of boiler connecting holes are formed on the side of the boiler connecting disc in a circle.

[0013] As a further preferred of the technical solution: the bottom of the fan is fixedly connected with a mounting bracket, and mounting holes are formed on the upper surface of the mounting bracket at four corners.

[0014] The utility model discloses the advantages are:

[0015] 1, the utility model discloses a gas flow regulating valve and air flow regulating valve accurate control gas and air intake, can adjust the proportion of both in real time according to boiler load, thereby adapt to the energy demand under different working conditions, ensure full combustion, improve energy utilization, reduce energy waste;

[0016] 2, the utility model discloses a gas injection port is inclined to set, and the air flow direction is identical, is favorable for gas and air to mix initially in the flow, and the spiral mixing channel of spiral mixing pipe makes gas and air mix more evenly, increases contact area and residence time, creates conditions for efficient combustion, compared with traditional burner, combustion efficiency is greatly promoted, and the emission of pollutant is reduced. DRAWINGS

[0017] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, the following will be briefly introduced the drawing needed to be used in the embodiment or prior art description, and obviously, the drawing in the following description is only some embodiments of the utility model, and for those skilled in the art, under the premise of not paying creative labor, other drawings can also be obtained according to these drawings.

[0018] Figure 1 It is a perspective structural schematic view of the utility model.

[0019] Figure 2Another view structure schematic view of the utility model;

[0020] Figure 3 The utility model discloses a mixed pipeline and spiral mixing pipe cross section structure schematic view for the utility model;

[0021] Figure 4 The utility model discloses a shunt branch pipe and annular gas pipe structure schematic view.

[0022] In the drawing: 1, gas mixing assembly;11, mixed pipeline;12, fan;13, shunt branch pipe;14, gas injection port;15, annular gas pipe;16, gas inlet branch pipe;17, gas inlet main pipe;18, spiral mixing pipe;19, combustion head;20, gas flow regulating valve;21, air flow regulating valve;22, spiral mixing channel;23, injection hole;24, gas total valve;25, ignition device;26, drive motor;27, boiler connecting disc;28, boiler connecting hole;29, mounting bracket;30, mounting hole. DETAILED DESCRIPTION

[0023] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0024] EMBODIMENT

[0025] Please refer to Figures 1-4 The utility model provides a kind of technical scheme: a kind of energy-saving burner for gas boiler, including gas mixing assembly 1, gas mixing assembly 1 includes mixed pipeline 11, fan 12, shunt branch pipe 13, gas injection port 14, annular gas pipe 15, gas inlet branch pipe 16, gas inlet main pipe 17, spiral mixing pipe 18, combustion head 19 and gas flow regulating valve 20;

[0026] One end of the mixing pipe 11 is provided with a fan 12, and the outer wall of the mixing pipe 11 is circumferentially communicated with a plurality of shunt branch pipes 13 near the side of the fan 12, the gas injection ports 14 are arranged at the gas outlet ends of the plurality of shunt branch pipes 13, the gas inlet ends of the plurality of shunt branch pipes 13 are communicated with the annular gas pipe 15, the outer wall of the annular gas pipe 15 is communicated with the gas inlet main pipe 17 through the gas inlet branch pipe 16 on both sides, the inner wall of the mixing pipe 11 is fixedly connected with the spiral mixing pipe 18 away from the fan 12, the other end of the mixing pipe 11 is fixedly connected with the combustion head 19, and the outer wall of the plurality of shunt branch pipes 13 is provided with the gas flow regulating valve 20 near the side of the annular gas pipe 15;Among them, the number of shunt branch pipes 13 is determined according to the power of the burner and the actual combustion demand, for example, for small gas boilers, 3-5 shunt branch pipes 13 can be arranged, and for large gas boilers, 8-10 shunt branch pipes 13 can be arranged;The gas flow regulating valve 20 adopts a high-precision electric regulating valve, which can remotely adjust the gas flow through the control system to realize automatic control;The gas injection port 14 is arranged at an inclined angle, and the inclined direction is consistent with the air flow direction in the mixing pipe 11.

[0027] In this embodiment, specifically: the outer wall of the mixing pipe 11 is provided with an air flow regulating valve 21 near one end of the fan 12;Among them, the air flow regulating valve 21 can accurately control the amount of air entering the mixing pipe 11;Gas combustion needs a certain amount of air to participate, by adjusting this air flow regulating valve 21, the amount of air entering can be adjusted according to the actual combustion demand to ensure that the gas and air are mixed in the right proportion;For example, when the boiler load changes, the amount of air can be accurately controlled to make the gas fully burn, improve energy utilization, avoid insufficient air causing insufficient gas combustion, or too much air taking away too much heat, causing energy waste, which helps to realize a more stable and efficient combustion process, reduce pollutant emissions, improve the overall performance of the burner, and ensure the stable operation of the gas boiler.

[0028] In this embodiment, specifically: the inside of the spiral mixing pipe 18 is provided with a spiral mixing channel 22, and the side of the combustion head 19 away from the mixing pipe 11 is provided with a plurality of injection holes 23; wherein the special structure of the spiral mixing channel 22 greatly enhances the mixing effect of the gas and air; when the gas and air enter the spiral mixing pipe 18, the spiral-shaped channel will make the two gases produce a spiral flow trajectory, which not only increases the contact area between the gases, but also prolongs the residence time of the gases in the pipe. The gas and air rub against and collide with each other during the spiral motion, and can be more fully mixed. Compared with ordinary straight pipes, the spiral mixing channel 22 can make the gas and air mix more uniformly, laying the foundation for subsequent efficient combustion, effectively improving combustion efficiency and reducing energy waste; the plurality of injection holes 23 are uniformly distributed on the side of the combustion head 19 away from the mixing pipe 11, which has the effects of stabilizing the flame and promoting combustion. After the mixed gas and air are sprayed out of these injection holes 23, a plurality of small flames are formed. This multi-flame combustion method increases the contact area between the flame and the heated object, allowing heat to be more evenly transferred, improving heating efficiency. The size and distribution of the injection holes 23 are designed to help stabilize the flame, prevent the flame from appearing to be off or backfiring, ensure the stability and safety of the combustion process, and ensure the continuous and reliable operation of the burner.

[0029] In this embodiment, specifically: the outside wall of the gas inlet main pipe 17 is installed with a gas total valve 24 near the side of the annular gas pipe 15; wherein the gas total valve 24 is a key safety component of the entire gas supply system. Before the burner starts, it is in a closed state, which can effectively prevent gas from entering the subsequent pipeline without being ready for combustion, and avoid safety accidents caused by gas leakage; when the burner stops working or abnormal situations occur, such as equipment failure, emergency power failure, etc., the gas total valve 24 can be quickly closed to cut off the gas supply and prevent the gas from continuing to flow into the burner, preventing the accumulation of gas from causing explosions, fires and other dangers, and ensuring the safety of personnel and equipment.

[0030] In this embodiment, specifically: the outside wall of the mixing pipe 11 is installed with an ignition device 25 near the side of the combustion head 19; wherein the main function of the ignition device 25 is to provide an initial source of ignition for the mixed gas to start the combustion reaction; after the gas and air are fully mixed in the mixing pipe 11, the mixed gas sprayed out of the injection holes 23 of the combustion head 19 is instantaneously ignited by the electric spark, flame or other ignition method generated by the ignition device 25. The ignition device 25 can reliably work and quickly ignite the mixed gas at each start of the burner, ensuring that the burner can quickly enter the normal working state to provide the required heat for the gas boiler.

[0031] In this embodiment, specifically: the front surface center of the fan 12 is provided with a driving motor 26, the driving motor 26 drives the impeller of the fan 12 to rotate, the high-speed rotation of the impeller can generate strong suction, so that the external air is continuously sucked into the mixing pipe 11, ensuring the stability of the combustion, and further ensuring the stable heat production of the boiler.

[0032] In this embodiment, specifically: the outer side wall of the mixing pipe 11 is fixedly connected with a boiler connecting disc 27 near one end of the combustion head 19, a plurality of boiler connecting holes 28 are formed in the side of the boiler connecting disc 27, by passing the bolts or other connecting members through the boiler connecting holes 28 on the boiler connecting disc 27 and being fixed with the corresponding interfaces on the gas boiler, the burner can be stably installed on the boiler, the connection between the burner and the boiler is more uniform and firm due to the circumferential distribution of the connecting holes, which ensures that the burner will not loosen due to vibration, thermal expansion and contraction and other factors during operation, and ensures that the flame generated by the burner can stably heat the boiler, avoiding heat leakage and combustion efficiency reduction.

[0033] In this embodiment, specifically: the bottom of the fan 12 is fixedly connected with a mounting bracket 29, mounting holes 30 are formed in the upper surface of the mounting bracket 29, by passing the bolts, screws and other connecting members through the mounting holes 30 on the mounting bracket 29, the fan 12 and the entire burner can be stably installed at the specified position, and the layout of the mounting holes 30 at four corners can ensure the stability of the installation, so that the burner will not easily displace or shake during operation.

[0034] The working principle or structural principle is that when in use, the mixing pipe 11 is connected and fixed with the gas boiler through the boiler connecting hole 28 on the boiler connecting disc 27, so that the heat generated by the burner can be effectively transmitted to the boiler, at the same time, the mounting frame 29 at the bottom of the fan 12 is installed in a suitable position through the mounting hole 30, so that the fan 12 can stably operate, and then the whole burner system can stably work and continuously provide combustion energy for the gas boiler; the gas total valve 24 is opened, the gas flows into through the gas inlet main pipe 17, enters the annular gas pipe 15 through the gas inlet branch pipe 16, and is adjusted in flow through the gas flow adjusting valve 20 on the shunt branch pipe 13 and is sprayed from the gas injection port 14, wherein the gas injection port 14 is arranged at an inclined angle and the inclined direction is consistent with the air flow direction in the mixing pipe 11; at the same time, the driving motor 26 drives the fan 12 to operate, the air enters the mixing pipe 11 after being adjusted by the air flow adjusting valve 21, the gas and the air are preliminarily mixed in the mixing pipe 11, then enter the spiral mixing pipe 18, the mixing effect is further strengthened by the internal spiral mixing channel 22, so that the gas and the air are uniformly mixed and prepared for efficient combustion; the mixed gas and air reach the combustion head 19, at this time, the ignition device 25 is started to ignite the mixed gas, the flame generated by combustion is sprayed from the multiple injection holes 23 on the combustion head 19 to heat the boiler, the gas total valve 24 can control the overall supply of the gas, when the burner is not used or abnormal conditions occur, the gas source can be cut off by closing the gas total valve 24 to ensure safety.

[0035] The above merely describes the preferred embodiments of the present application and is not used to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An energy saving burner for gas boilers, characterized in that, The utility model relates to a gas mixing assembly (1) which comprises a mixing pipeline (11), a fan (12), a shunt branch pipe (13), a gas injection port (14), an annular gas pipe (15), a gas inlet branch pipe (16), a gas inlet main pipe (17), a spiral mixing pipe (18), a combustion head (19) and a gas flow regulating valve (20). One end of the mixing pipeline (11) is provided with the fan (12), the outer side wall of the mixing pipeline (11) is in circumferential communication with a plurality of shunt branch pipes (13) near one side of the fan (12), the gas injection ports (14) are arranged at the gas outlet ends of the plurality of shunt branch pipes (13), the annular gas pipe (15) is in communication with the gas inlet ends of the plurality of shunt branch pipes (13), the gas inlet main pipe (17) is in communication with the outer side walls of the annular gas pipe (15) through the gas inlet branch pipes (16) on both sides, the spiral mixing pipe (18) is fixedly connected to the inner wall of the mixing pipeline (11) away from the fan (12), the combustion head (19) is fixedly connected to the other end of the mixing pipeline (11), and the gas flow regulating valves (20) are arranged on the outer side walls of the plurality of shunt branch pipes (13) near the annular gas pipe (15).

2. The energy-saving burner for gas boilers according to claim 1, characterized in that The outer side wall of the mixing pipeline (11) is provided with the air flow regulating valve (21) near one end of the fan (12).

3. The energy-saving burner for gas boiler according to claim 1, characterized in that, The spiral mixing pipe (18) is provided with a spiral mixing channel (22) in the inside, and a plurality of injection holes (23) are formed in the side of the combustion head (19) away from the mixing pipeline (11).

4. The energy-saving burner for gas boiler according to claim 1, characterized in that, The outer side wall of the gas inlet main pipe (17) is provided with the gas total valve (24) near one side of the annular gas pipe (15).

5. The energy-saving burner for gas boiler according to claim 1, characterized in that, The outer side wall of the mixing pipeline (11) is provided with the igniter (25) near one side of the combustion head (19).

6. The energy-saving burner for gas boiler according to claim 1, characterized in that, The front surface center of the fan (12) is provided with the driving motor (26).

7. The energy-saving burner for gas boilers according to claim 1, characterized in that, The outer side wall of the mixing pipeline (11) is fixedly connected with the boiler connecting disc (27) near one end of the combustion head (19), and a plurality of boiler connecting holes (28) are formed in the side of the boiler connecting disc (27) in a circle.

8. The energy-saving burner for gas boiler according to claim 1, characterized in that, The bottom of the fan (12) is fixedly connected with the mounting rack (29), and the mounting holes (30) are formed in the upper surfaces of the four corners of the mounting rack (29).

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