Low-nitrogen device with low-oxygen combustion function

Abstract

The utility model discloses a low-nitrogen device with low-oxygen combustion, which relates to the technical field of combustors and comprises a mounting shell and a fan, a fuel adjusting component is mounted in the mounting shell and comprises a first motor mounted in the mounting shell, and the output end of the first motor is connected with a crank. A first connecting rod is rotatably connected to the inner wall of the crank, a second connecting rod is rotatably connected to one end of the first connecting rod, a mounting block is rotatably connected to the end, away from the first connecting rod, of the second connecting rod, and a piston push rod is rotatably connected to the end, away from the second connecting rod, of the mounting block; according to the utility model, the ratio of the fuel to the oxygen is controlled by using the fuel adjusting assembly, so that the fuel can be combusted under the optimal condition, the fuel can be fully utilized, and the energy waste is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to burner technical field, concretely is a low nitrogen device with low oxygen combustion. BACKGROUND

[0002] The low nitrogen burner is the equipment that will increase the blower, the induced draft fan, the frequency converter use control valve and multiple circuits integrated to let clean energy and the burner operation provide higher efficient heat energy for the boiler to traditional burner, and its basic principle is through the inhibition flame center temperature and control reduces the oxygen content in high temperature area, to control the generation of thermal type nitrogen oxides in the combustion process, for realizing this goal, the low nitrogen burner adopts multiple advanced technical means, for example, the principle of staged combustion, it through the fuel and air are mixed in stages, make the combustion process deviate from the theoretical equivalent ratio, thereby reduce the combustion temperature and inhibit the generation of nitrogen oxides, another technology is the principle of self recirculation, through the pressure head of combustion air absorbs part of the combustion flue gas back to the burner, and mixes with air again and participates in combustion, this way can also reduce the combustion temperature and reduce the generation of nitrogen oxides.

[0003] In the prior art, the traditional low oxygen combustion low nitrogen device may face the problem of improper mixing ratio of fuel and air in the fuel supply link, when the mixing ratio of fuel and air is improper, the combustion reaction will be insufficient, resulting in incomplete combustion of fuel, not only waste valuable energy resources, but also increase the unburned components in flue gas, such as carbon monoxide and hydrocarbons, incomplete combustion also produces a large amount of black smoke and particulate matter, seriously pollutes the atmospheric environment, reduces air quality, and may also cause flame fluctuation and flameout phenomenon, which not only affects the stability and thermal efficiency of combustion, but also may cause damage to the combustion equipment and shorten its service life. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a low nitrogen device with low oxygen combustion to solve the problems in the above background technology.

[0005] To solve the above technical problems, the utility model provides a low nitrogen device with low oxygen combustion, which comprises a mounting shell and a fan, a fuel adjusting assembly is installed in the inside of the mounting shell, the fuel adjusting assembly comprises a first motor installed in the inside of the mounting shell, the output end of the first motor is connected with a crank, the inner wall of the crank is rotationally connected with a first connecting rod, one end of the first connecting rod is rotationally connected with a second connecting rod, the end of the second connecting rod away from the first connecting rod is rotationally connected with a mounting block, the end of the mounting block away from the second connecting rod is rotationally connected with a piston push rod, the top end of the first connecting rod is rotationally connected with a third connecting rod, the inner wall of the end of the third connecting rod away from the first connecting rod is rotationally connected with an eccentric block.

[0006] Further, the inner wall of the eccentric block is fixedly connected with a rotating shaft, one end of the rotating shaft away from the eccentric block is fixedly connected with a gear, one side of the outer wall of the gear is meshingly connected with a rack, the top end of the rack is fixedly connected with a sliding rail, the inner wall of the sliding rail is slidingly connected with a sliding block, one end of the sliding block away from the sliding rail is fixedly connected with a rotating disc, the outer wall of the side of the rotating disc away from the sliding block is rotatably connected with a second motor.

[0007] Further, one end of the piston push rod is provided with a piston head, and the outer wall of the piston head is fixedly connected with two sealing rings.

[0008] Further, the outer wall of the piston push rod is sleeved with a sleeve pipeline, and the inner wall of the sleeve pipeline is slidingly connected with the piston head.

[0009] Further, the top end of the sleeve pipeline is provided with an inlet pipe, the outer wall of the side of the sleeve pipeline away from the inlet pipe is fixedly connected with an outlet pipe, and the inlet pipe and the outlet pipe are both provided with a valve at the end close to the sleeve pipeline.

[0010] Further, one end of the outlet pipe away from the mounting shell is connected with a fan, and one end of the fan is provided with a third motor.

[0011] Further, the first motor is rotatably connected with the crank through an output end, and the outer wall of the first motor is fixedly connected with the inner wall of the mounting shell.

[0012] Further, the second motor is rotatably connected with the outer wall of one side of the rotating disc through an output end, and the outer wall of the second motor is fixedly connected with the inner wall of the mounting shell.

[0013] Compared with the prior art, the beneficial effects of the low-nitrogen device with low-oxygen combustion are as follows: the fuel adjusting assembly is used to control the proportion of fuel and oxygen, so that the fuel can be burned under the best conditions; when the amount of oxygen blown by the fan increases, the fuel adjusting assembly can correspondingly increase the fuel supply to maintain the stability of the flame and maximize the combustion efficiency; on the contrary, when the amount of oxygen decreases, the assembly reduces the fuel supply to prevent insufficient combustion caused by insufficient oxygen, so that the fuel is more fully utilized, and energy waste is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a whole structure schematic view of a low-nitrogen device with low-oxygen combustion;

[0015] Figure 2 It is an internal structure schematic view of a mounting shell in a low-nitrogen device with low-oxygen combustion;

[0016] Figure 3 It is a front structure schematic view of a fuel adjusting assembly in a low-nitrogen device with low-oxygen combustion;

[0017] Figure 4It is a schematic diagram of the overall structure of a fuel regulating assembly in a low-nitrogen device with low-oxygen combustion.

[0018] Figure 5 It is a schematic diagram of the structure of a reciprocating assembly in a low-nitrogen device with low-oxygen combustion.

[0019] In the figure:

[0020] 1, mounting shell; 2, first motor; 3, crank; 4, first connecting rod; 5, second connecting rod; 6, mounting block; 7, piston push rod; 8, third connecting rod; 9, eccentric block; 10, rotating shaft; 11, gear; 12, rack; 13, sliding rail; 14, sliding block; 15, rotating disc; 16, second motor; 17, feeding pipe; 18, discharging pipe; 19, fan; 20, third motor. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0022] Please refer to Figure 1 - Figure 5 The present application provides a technical solution of a low-nitrogen device with low-oxygen combustion:

[0023] In the embodiments of the present application, please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 , including a mounting shell 1 and a fan 19, the mounting shell 1 has a fuel regulating assembly installed inside, the fuel regulating assembly includes a first motor 2 installed inside the mounting shell 1, the output end of the first motor 2 is connected with a crank 3, the inner wall of the crank 3 is rotationally connected with a first connecting rod 4, one end of the first connecting rod 4 is rotationally connected with a second connecting rod 5, the end of the second connecting rod 5 away from the first connecting rod 4 is rotationally connected with a mounting block 6, the end of the mounting block 6 away from the second connecting rod 5 is rotationally connected with a piston push rod 7, the top end of the first connecting rod 4 is rotationally connected with a third connecting rod 8, and the inner wall of the end of the third connecting rod 8 away from the first connecting rod 4 is rotationally connected with an eccentric block 9.

[0024] It should be noted that: the first motor 2 is installed inside the mounting shell 1, the crank 3 is connected with the output end of the first motor 2, when the first motor 2 starts, the crank 3 will move synchronously, converting the rotary motion of the first motor 2 into reciprocating motion, and the outer wall of the middle part of the first connecting rod 4 is rotatably connected with the inner wall of the crank 3, one end is rotatably connected with the second connecting rod 5, the rotary motion of the crank 3 is converted into the reciprocating motion of the second connecting rod 5 through the first connecting rod 4, the swing motion of the first connecting rod 4 is converted into the reciprocating motion of the mounting block 6 through the second connecting rod 5, providing reciprocating thrust for the piston push rod 7, and the other end of the third connecting rod 8 is rotatably connected with the top end of the first connecting rod 4, and the inner wall of the other end is rotatably connected with the eccentric block 9, and the rotary motion of the eccentric block 9 provides additional adjustment for the reciprocating motion of the piston push rod 7, so that the amount of fuel pushed out is adjusted.

[0025] Referring to Figure 4 , Figure 5 , the inner wall of the eccentric block 9 is fixedly connected with the rotating shaft 10, one end of the rotating shaft 10 away from the eccentric block 9 is fixedly connected with the gear 11, one side of the gear 11 is meshingly connected with the rack 12, the top end of the rack 12 is fixedly connected with the sliding rail 13, the inner wall of the sliding rail 13 is slidably connected with the sliding block 14, one end of the sliding block 14 away from the sliding rail 13 is fixedly connected with the rotating disc 15, and one side of the rotating disc 15 away from the sliding block 14 is rotatably connected with the second motor 16.

[0026] It should be noted that: the gear 11 is fixedly connected to the end of the rotating shaft 10 away from the eccentric block 9, when the second motor 16 rotates, it provides the rotating disc 15 with a driving force, when the rotating disc 15 rotates, it drives the sliding block 14 to move in a predetermined track on the inner wall of the sliding rail 13, and at the same time drives the sliding rail 13 to reciprocate for pushing the rack 12 and the gear 11 to mesh and rotate, so that the rotating shaft 10 rotates.

[0027] Referring to Figure 3 , one end of the piston push rod 7 is provided with a piston head, and the outer wall of the piston head is fixedly connected with two sealing rings.

[0028] It should be noted that: the two sealing rings fixedly connected to the outer wall of the piston head can be attached to the inner wall of the sleeve pipe, forming a sealed connection, preventing leakage of high-pressure gas or liquid during piston movement, thereby ensuring stable and efficient use of the pressure in the combustion chamber.

[0029] Referring to Figure 2 , the top end of the sleeve pipe is provided with an inlet pipe 17, the outer wall of the sleeve pipe away from the inlet pipe 17 is fixedly connected with an outlet pipe 18, and the inlet pipe 17 and the outlet pipe 18 near the sleeve pipe are both provided with a valve.

[0030] Need to explain: the valve installed in the inlet pipe 17, outlet pipe 18 one end of the fuel inflow and outflow can enter or leave the sleeve pipe in the right time and conditions, prevent fuel in the pipe backflow phenomenon, ensure the single and stability of fuel flow, thereby avoiding the waste of fuel or error flow.

[0031] Reference Figure 1 , the outlet pipe 18 away from the installation of the shell 1 one end of the fan 19, one end of the fan 19 is installed with the third motor 20.

[0032] Need to explain: through the third motor 20 control fan 19 start and stop, ensure the stability of the whole system operation.

[0033] Working principle: by using the first motor 2 drive crank 3 rotation, can make the first motor 2 rotation into reciprocating swing, and through the crank 3 drive rotating connection of the first connecting rod 4, the first connecting rod 4 is rotating connection with the second connecting rod 5, when the first motor 2 start, the second connecting rod 5 will synchronous reciprocating push out movement, thereby driving the piston push rod 7 and piston head in the inner wall of the sleeve pipe piston movement, so that the fuel in the inlet pipe 17 inside the sleeve pipe inside by the outlet pipe 18 to the fan 19 inside the combustion work, when the oxygen content of the fan 19 is reduced, if the fuel output remains the same proportion, may appear fuel combustion not comprehensive situation, using the control panel to start the second motor 16 drive rotating disc 15 rotation, can make the slider 14 push slide rail 13, at the same time let the slide rail 13 reciprocating push rack 12 drive gear 11 rotation, and the rotation of the gear 11 will drive the rotating shaft 10 rotation, using the meshing characteristics of gear 11, rack 12, ensure the stability of the assembly operation, and reciprocating motion than the second motor 16 with positive and negative rotation adjustment rotating shaft 10, reciprocating motion mechanism in the process of motion usually has more stable motion characteristics, reduce the impact and vibration caused by frequent start, stop and reverse, make the assembly to the fuel output adjustment to get better control, increase the efficiency of the combustion.

Claims

1. A low NOx device with low oxygen combustion comprising a mounting housing (1) and a fan (19), characterized in that: The inside of the mounting shell (1) is internally mounted with a fuel adjusting assembly, the fuel adjusting assembly comprises a first motor (2) mounted in the mounting shell (1), the output end of the first motor (2) is connected with a crank (3), the inner wall of the crank (3) is rotatably connected with a first connecting rod (4), one end of the first connecting rod (4) is rotatably connected with a second connecting rod (5), the end of the second connecting rod (5) away from the first connecting rod (4) is rotatably connected with a mounting block (6), the end of the mounting block (6) away from the second connecting rod (5) is rotatably connected with a piston push rod (7), the top end of the first connecting rod (4) is rotatably connected with a third connecting rod (8), the inner wall of the end of the third connecting rod (8) away from the first connecting rod (4) is rotatably connected with an eccentric block (9).

2. A low NOx device with low oxygen combustion as claimed in claim 1 characterized by: The inner wall of the eccentric block (9) is fixedly connected with a rotating shaft (10), the end of the rotating shaft (10) away from the eccentric block (9) is fixedly connected with a gear (11), one side of the outer wall of the gear (11) is meshingly connected with a rack (12), the top end of the rack (12) is fixedly connected with a sliding rail (13), the inner wall of the sliding rail (13) is slidably connected with a sliding block (14), the end of the sliding block (14) away from the sliding rail (13) is fixedly connected with a rotating disc (15), one side of the outer wall of the rotating disc (15) away from the sliding block (14) is rotatably connected with a second motor (16).

3. A low NO device with low oxygen combustion as claimed in claim 2 wherein: One end of the piston push rod (7) is mounted with a piston head, the outer wall of the piston head is fixedly connected with two sealing rings.

4. A low NO device with low oxygen combustion as claimed in claim 3 wherein: The outer wall of the piston push rod (7) is sleeved with a sleeve pipeline, and the inner wall of the sleeve pipeline is in sliding connection with the piston head.

5. A low NO device with low oxygen combustion as claimed in claim 4 wherein: The top end of the sleeve pipeline is mounted with an inlet pipe (17), one side of the outer wall of the sleeve pipeline away from the inlet pipe (17) is fixedly connected with an outlet pipe (18), and the ends of the inlet pipe (17) and the outlet pipe (18) close to the sleeve pipeline are both mounted with valves.

6. A low NO device with low oxygen combustion as claimed in claim 5 wherein: The end of the outlet pipe (18) away from the mounting shell (1) is connected with a fan (19), and one end of the fan (19) is mounted with a third motor (20).

7. A low NO device with low oxygen combustion as claimed in claim 6 wherein: The first motor (2) is rotatably connected with the crank (3) through the output end, and the outer wall of the first motor (2) is fixedly connected with the inner wall of the mounting shell (1).

8. A low NO device with low oxygen combustion as claimed in claim 7 wherein: The second motor (16) is rotatably connected with one side of the outer wall of the rotating disc (15) through the output end, and the outer wall of the second motor (16) is fixedly connected with the inner wall of the mounting shell (1).

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