CN211345295U - Stepless speed change combustor - Google Patents

Abstract

The utility model discloses a stepless speed change combustor, including the combustor body, set up the blast chamber in the combustor body, be provided with the fan impeller in the blast chamber, the front side of combustor body is provided with the flame projecting pipe that is linked together with the blast chamber, and one side of combustor body is provided with air inlet box and oil pump, and the oil pump drives through first inverter motor, the air inlet box is communicated with the blast chamber, the oil pump is connected with the fuel sprayer through defeated oil pipe, the fuel sprayer sets up in the flame projecting pipe; a second variable frequency motor for driving the fan impeller to rotate is arranged on the other side of the combustor body; the utility model drives the oil pump and the fan impeller by the variable frequency motor, the variable frequency motor can continuously and stably output different rotating speeds, and the rotating speed can be continuously changed and adjusted, thereby realizing the stepless adjustment of the oil injection quantity and the ventilation quantity, namely the stepless adjustment of the size and the temperature of the injected flame, and adapting to various application environments; meanwhile, the control of a plurality of electromagnetic valves can be omitted, and the operation is convenient.

Description

Stepless speed change combustor

Technical Field

The utility model relates to a combustion apparatus technical field especially relates to a infinitely variable combustor.

Background

The fuel combustion technology plays an important role in the development of national economy, particularly in energy engineering, and the low efficiency of combustion equipment is an important factor. Therefore, the development of a novel combustion technology has a very important significance for improving the operation efficiency of energy utilization equipment, and a household water heater, a household gas stove, even a lighter and the like can be considered as one of the burners in the broad concept of the burner. In its operating principle, a burner can be defined as a device that converts a substance into heat energy by a chemical reaction, i.e., combustion, i.e., air and fuel are mixed in a proper ratio by a premixing device to be sufficiently combusted. The combustor is a thermal energy device which sprays fuel and air according to required concentration, speed, turbulence and mixing mode and enables the fuel to be continuously combusted. The fuel combustor is through the fuel pump extraction fuel, carry to fuel sprayer department blowout through defeated oil pipe, spout air and fuel together in the combustor through the blower system in fuel sprayer department simultaneously, fuel particle and air particle mix, realize the effect of sustained combustion, and the required flame temperature of the ignition heating condition of difference is also different, present combustor fan impeller and oil pump are all through the constant speed motor drive, its mode that changes the oil spout speed sets up many defeated oil pipes between oil pump and fuel sprayer, set up the solenoid valve on many defeated oil pipes respectively, defeated oil pipe break-make of different quantity is controlled through the break-make of control solenoid valve, thereby change the oil spout speed of fuel sprayer department with the size and the temperature of control flame. However, this control method can only adjust the injection speed step by step, which is not convenient to adjust the flame size and temperature to the proper state, and affects the normal use.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to avoid prior art's weak point, provide a infinitely variable combustor to effectively solve the weak point that exists among the prior art.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a stepless speed change combustor comprises a combustor body, wherein an air blowing cavity is formed in the combustor body, a fan impeller is arranged in the air blowing cavity, a fire spraying pipe communicated with the air blowing cavity is arranged on the front side of the combustor body, an air inlet box and an oil pump are arranged on one side of the combustor body, the oil pump is driven by a first variable frequency motor and is communicated with the air blowing cavity, the oil pump is connected with an oil nozzle through an oil conveying pipe, and the oil nozzle is arranged in the fire spraying pipe; and a second variable frequency motor for driving the fan impeller to rotate is arranged on the other side of the combustor body.

Furthermore, a throttle valve capable of adjusting ventilation volume is arranged in the air blowing cavity.

Furthermore, an upper air cavity and a lower air cavity are arranged in the air inlet box, an air inlet is formed in the upper air cavity, a plurality of partition plates are arranged in the lower air cavity, and the lower air cavity is divided into a snake-shaped air channel by the partition plates.

Furthermore, a plurality of air inlets are formed in the upper side of the upper air cavity, L-shaped air inlet pipes are rotatably arranged on the air inlets, and the upper ends of the air inlet pipes are horizontal.

The above technical scheme of the utility model following beneficial effect has: the utility model drives the oil pump and the fan impeller by the variable frequency motor, the variable frequency motor can continuously and stably output different rotating speeds, and the rotating speed can be continuously changed and adjusted, thereby realizing the stepless adjustment of the oil injection quantity and the ventilation quantity, namely the stepless adjustment of the size and the temperature of the injected flame, and adapting to various application environments; meanwhile, the control of a plurality of electromagnetic valves can be omitted, and the operation is convenient.

Drawings

Fig. 1 is a perspective view of an embodiment of the present invention;

FIG. 2 is a plan view of a prior art combustor with three solenoid controlled injection velocities;

fig. 3 is a plan view of an embodiment of the present invention;

FIG. 4 is a perspective view of the embodiment of the present invention with an air inlet pipe;

fig. 5 is a sectional view of the air inlet box according to the embodiment of the present invention.

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1-5, the infinitely variable speed burner according to this embodiment includes a burner body 1, an air blowing cavity 1a is formed in the burner body 1, a fan impeller 2 is disposed in the air blowing cavity 1a, a fire spraying pipe 3 communicated with the air blowing cavity 1a is disposed on the front side of the burner body 1, an air inlet box 4 and an oil pump 5 are disposed on one side of the burner body 1, the oil pump 5 is driven 51 by a first variable frequency motor, the air inlet box 4 is communicated with the air blowing cavity 1a, the oil pump 5 is connected to an oil nozzle 6 through an oil delivery pipe 52, and the oil nozzle 6 is disposed in the fire spraying pipe 3; the other side of the burner body 1 is provided with a second variable frequency motor 7 for driving the fan impeller 2 to run;

the second variable frequency motor 7 drives the fan impeller 2 to operate, the fan impeller 2 sucks air from one side of the air inlet box 4, the air is conveyed into the fire spraying pipe 3 through the air blowing cavity 1a, meanwhile, the electromagnetic valve 521 is in an open state, the first variable frequency motor 51 drives the oil pump 5 to operate, fuel oil is conveyed to the oil nozzle 6 through the oil conveying pipe 52, the air and the fuel oil are mixed and sprayed out, and the fuel oil is ignited through the ignition device, so that continuous combustion is realized; the first variable frequency motor 51 can change the rotating speed of the oil pump 5, so that the oil injection quantity is changed, the adjustment of flames with different sizes is realized, the stepped control of a plurality of electromagnetic valves 521 on the oil injection quantity is omitted, the operation is convenient, the stepless speed change is realized, the adaptability is strong, and the second variable frequency motor 7 can be matched with different oil injection quantities to change the rotating speed of the fan impeller 2, so that the ventilation quantity is changed;

preferably, a throttle valve (not shown in the figure) is additionally arranged in the air blowing cavity 1a on the basis that the rotating speed of the fan impeller 2 is changed by the second variable frequency motor 7, and the throttle valve can adjust an air port to adjust the air speed under the condition that the ventilation quantity is constant, so that the intensity and the size of flame can be better adjusted;

preferably, an upper air cavity 4a and a lower air cavity 4b are arranged in the air inlet box 4, an air inlet is formed in the upper air cavity 4a, a plurality of partition plates 41 are arranged in the lower air cavity 4b, the partition plates 41 divide the lower air cavity 4b into a snake-shaped air channel, as the air inlet box 4 sucks air, if fine objects near the air inlet of the air inlet box 4 are sucked into the air inlet box 4, if the fine objects are sucked into the air inlet of the air inlet box 1a, the fan impeller 2 can be damaged or enter the fire spraying pipe 3 to damage the oil nozzle 6, the partition plates 41 can turn back the lower air cavity 4b for multiple times, particles can not directly fall into the air inlet cavity 1a and can fall and leave in the air channel; preferably, the baffle plate 41 is provided with a plurality of baffle plates 411, and the baffle plates 411 can further prevent particles from entering the air blowing cavity 1a along with the air suction and rise, so that the safety of the fan impeller 2 and the oil nozzle 6 is ensured;

preferably, a plurality of air inlets are formed in the upper side of the upper air cavity 4a, an L-shaped air inlet pipe 42 is rotatably arranged on each air inlet, the upper end of each air inlet pipe 42 is horizontal, the air inlet pipes 42 can rotate at any angle on the upper portion of the air inlet box 4, and can also absorb a plurality of air through an external connecting pipeline, an air suction opening is right aligned to an operator when operation is avoided, the flowing range of air can be expanded, oxygen content is prevented from being lowered due to the fact that the air in the same area is absorbed for a long time, smoke waste gas is generated due to the fact that normal combustion of fuel is influenced, preferably, a filter screen 421 is arranged on each air inlet pipe 42.

The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.

Claims (2)

1. A continuously variable combustor characterized by: the combustor comprises a combustor body, wherein an air blowing cavity is formed in the combustor body, a fan impeller is arranged in the air blowing cavity, a fire spraying pipe communicated with the air blowing cavity is arranged on the front side of the combustor body, an air inlet box and an oil pump are arranged on one side of the combustor body, the oil pump is driven by a first variable frequency motor, the air inlet box is communicated with the air blowing cavity, the oil pump is connected with an oil nozzle through an oil conveying pipe, and the oil nozzle is arranged in the fire spraying pipe; a second variable frequency motor for driving the fan impeller to rotate is arranged on the other side of the combustor body; an upper air cavity and a lower air cavity are arranged in the air inlet box, an air inlet is formed in the upper air cavity, a plurality of partition plates are arranged in the lower air cavity, and the partition plates divide the lower air cavity into a snake-shaped air channel; a plurality of air inlets are formed in the upper side of the upper air cavity, L-shaped air inlet pipes are rotatably arranged on the air inlets, and openings at the upper ends of the air inlet pipes are horizontal.

2. A continuously variable burner as claimed in claim 1, wherein: and a throttle valve capable of adjusting ventilation quantity is arranged in the air blowing cavity.

Images