Natural gas spray gun structure

Abstract

The utility model relates to the technical field of spray guns, in particular to a natural gas spray gun structure which comprises an outer cylinder, an inner cylinder is fixedly sleeved with the outer cylinder, and a conical head is fixedly connected to the end of the inner cylinder. According to the utility model, air flow and natural gas flow are exhausted through the exhaust hole of the conical head at the end part of the inner barrel, so that a certain angle is formed between the air flow and the natural gas flow, the mixing of the air and the natural gas is facilitated, then electric sparks are generated through the electronic fire maker, the mixed fuel can be ignited, and flames can be ejected from the flame ejection column. The output end of a servo motor drives a screw rod to rotate, so that an internal thread block is driven to move, a plurality of driving rods are driven to rotate, one end of each driving rod is used for driving an adjusting plate to slide in a fixed rail, the size of an air inlet hole can be adjusted according to the air pressure of natural gas, and therefore the size of air flow can be adjusted; and sufficient air energy and fuel are mixed, so that natural gas in the natural gas spray gun can be fully combusted.

Description

Technical Field

[0001] The utility model relates to the technical field of spray guns, in particular to a natural gas spray gun structure. Background Art

[0002] The fuel of the natural gas spray gun is gas fuel. Gas combustion is a complex combination of physical and chemical processes. The gas combustion process can be seen as three processes: mixing, ignition, and reaction. These three processes are interrelated and inseparable. They are realized in a very short process. When the spray gun is working, in order to realize the oxidation reaction of natural gas, the gas molecules must be in contact with the oxygen molecules in the air, which is what we call the uniform mixing of natural gas and air. The mixing of gas and air is a physical diffusion phenomenon, which is much slower than the combustion reaction process itself.

[0003] The existing natural gas spray gun is difficult to adjust the air flow velocity when in use. Therefore, when natural gas with different pressures passes through the natural gas spray gun, the air flow rate is easily too small and difficult to mix with the natural gas, resulting in slow diffusion, incomplete combustion of natural gas, and unfocused flames. Utility Model Content

[0004] In order to overcome the above-mentioned technical problems, the purpose of the utility model is to provide a natural gas spray gun structure, which aims the natural gas at the conical head through multiple nozzles on the cavity column to spray the natural gas. At the same time, the motor in the air intake cylinder can drive the fan to rotate, so that air can be drawn into the air intake cylinder and the inner cylinder, and the air will be discharged through the exhaust hole of the conical head at the end of the inner cylinder, so that the air flow and the natural gas flow form a certain angle, which is conducive to the mixing of air and natural gas. Then, an electric spark is struck by an electronic lighter, so that the mixed fuel can be ignited, and the flame can be sprayed out from the flame column. The output end of the servo motor drives the screw to rotate, thereby driving the internal thread block to move, thereby driving multiple drive rods to rotate, and one end of the drive rod is used to drive the adjustment plate to slide in the fixed rail, so that the size of the air inlet hole can be adjusted according to the gas pressure of the natural gas, thereby adjusting the size of the air flow, so that a sufficient amount of air can be mixed with the fuel, so that the natural gas in the natural gas spray gun can burn fully and the flame can be kept concentrated.

[0005] The purpose of the utility model can be achieved through the following technical solutions:

[0006] A natural gas spray gun structure comprises an outer cylinder, an inner cylinder is fixedly sleeved inside the outer cylinder, a conical head is fixedly connected to the end of the inner cylinder, a plurality of exhaust holes are equidistantly arranged in a circular shape on the outer wall of the conical head, a fuel chamber is arranged between the outer cylinder and the inner cylinder, a round cover is fixedly connected to the end of the outer cylinder, a mixing chamber is arranged inside the round cover, a flame column is fixedly connected to the center position of the end of the round cover, a plurality of cavity columns connected to the interior of the outer cylinder are fixedly connected to the end of the outer cylinder at equidistant circles, and a plurality of nozzles are fixedly connected to the outer wall of the cavity column at equidistant circles.

[0007] Furthermore, an air intake cylinder connected to the interior of the inner cylinder is fixedly connected at the center position of the end of the inner cylinder, a fan is fixedly arranged inside the air intake cylinder, a circular plate is fixedly connected to the end of the air intake cylinder, a plurality of air inlet holes are arranged in a circular shape at equal distances, and a motor is arranged in the air intake cylinder to drive the fan to rotate, thereby drawing air into the inner cylinder.

[0008] Furthermore, the top of the outer cylinder is fixedly connected to a natural gas pipe connected to the interior thereof, an outer wall of the natural gas pipe is fixedly provided with a first solenoid valve, and the bottom of the outer cylinder is fixedly connected to a liquefied gas pipe connected to the interior thereof, an outer wall of the liquefied gas pipe is fixedly provided with a second solenoid valve. When the natural gas fuel is insufficient, in order to keep the spray gun from spraying flames, the first solenoid valve can be closed and the second solenoid valve can be opened, so that liquefied gas fuel can be introduced into the fuel chamber, thereby maintaining the supply of other fuel for the spray gun to spray flames.

[0009] Furthermore, a screw is rotatably connected at the center position of the circular plate, and the end of the screw is fixedly connected to the output end of the servo motor. An internal thread block is screwed and sleeved on the screw, and one end of a plurality of drive rods are rotatably connected to the internal thread block at equal intervals in a ring, and the other ends of the plurality of drive rods are rotatably connected to an adjustment plate, and both sides of the adjustment plate are slidably embedded in fixed rails fixedly connected to the circular plate, and the adjustment plate can be used to block the air inlet and adjust the size of the air inlet.

[0010] Furthermore, an electronic igniter is fixedly provided at the end of the conical head, and the natural gas spray gun can be ignited by the electronic igniter.

[0011] Furthermore, a mounting ring is fixedly sleeved on one end of the outer wall of the outer cylinder, and the natural gas spray gun can be installed and positioned by the mounting ring arranged on the outer wall of the outer cylinder.

[0012] Beneficial effects of the utility model:

[0013] 1. Use multiple nozzles on the cavity column to aim the natural gas at the conical head to spray out the natural gas. At the same time, the motor in the air intake tube can drive the fan to rotate, so that air can be drawn into the air intake tube and the inner tube. The air will be discharged through the exhaust hole of the conical head at the end of the inner tube, so that the air flow and the natural gas flow form a certain angle, which is conducive to the mixing of air and natural gas. Then, an electric spark is struck by an electronic lighter to ignite the mixed fuel, and the flame can be ejected from the flame column. The output end of the servo motor drives the screw to rotate, thereby driving the internal thread block to move, thereby driving multiple drive rods to rotate, and one end of the drive rod is used to drive the adjustment plate to slide in the fixed rail. In this way, the size of the air inlet hole can be adjusted according to the gas pressure of the natural gas, thereby adjusting the size of the air flow, so that a sufficient amount of air can be mixed with the fuel, so that the natural gas in the natural gas spray gun can burn fully and the spray flame can remain concentrated. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The utility model is further described below in conjunction with the accompanying drawings.

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the overall end section structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the cone head in the utility model;

[0018] Figure 4 This is a schematic diagram of the air inlet adjustment structure of the utility model;

[0019] Figure 5 It is a schematic diagram of the internal structure of the air intake cylinder in the utility model.

[0020] In the figure: 101, outer cylinder; 102, round cover; 103, flame column; 104, mounting ring; 105, fuel chamber; 106, mixing chamber; 107, natural gas pipe; 108, solenoid valve one; 109, liquefied gas pipe; 110, solenoid valve two; 111, chamber column; 112, nozzle; 201, inner cylinder; 202, conical head; 203, exhaust hole; 204, electronic igniter; 205, air intake cylinder; 206, fan; 207, round plate; 208, air inlet hole; 209, screw; 210, servo motor; 211, internal thread block; 212, drive rod; 213, adjustment plate; 214, fixed rail. DETAILED DESCRIPTION

[0021] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-5 As shown, a natural gas spray gun structure comprises an outer cylinder 101, an inner cylinder 201 is fixedly sleeved inside the outer cylinder 101, a conical head 202 is fixedly connected to the end of the inner cylinder 201, a plurality of exhaust holes 203 are equidistantly provided in an annular manner on the outer wall of the conical head 202, a fuel chamber 105 is provided between the outer cylinder 101 and the inner cylinder 201, a round cover 102 is fixedly connected to the end of the outer cylinder 101, a mixing chamber 106 is provided inside the round cover 102, a flame column 103 is fixedly connected to the center position of the end of the round cover 102, a plurality of chamber columns 111 connected to the interior of the outer cylinder 101 are fixedly connected to the end of the outer cylinder 101 at an equal distance, a plurality of nozzles 112 are fixedly connected to the outer wall of the chamber column 111 at an equal distance; the top of the outer cylinder 101 is fixedly connected to the outer cylinder 101, and a plurality of nozzles 112 are fixedly connected to the outer cylinder 101 at an equal distance. A natural gas pipe 107 communicating with the interior is fixedly connected to the outer tube 101, and a solenoid valve 108 is fixedly arranged on the outer wall of the natural gas pipe 107. A liquefied gas pipe 109 communicating with the interior is fixedly connected to the bottom of the outer tube 101, and a solenoid valve 2 110 is fixedly arranged on the outer wall of the liquefied gas pipe 109. When the natural gas fuel is insufficient, in order to position the spray gun to continue to spray flames, the solenoid valve 108 can be closed and the solenoid valve 2 110 can be opened, so that liquefied gas fuel can be introduced into the fuel chamber 105, so as to keep providing other fuel for the spray gun to spray flames; a mounting ring 104 is fixedly sleeved on one end of the outer wall of the outer tube 101, and the natural gas spray gun can be installed and positioned by the mounting ring 104 arranged on the outer wall of the outer tube 101.

[0023] An air inlet cylinder 205 connected to the inner part is fixedly connected at the center of the end of the inner cylinder 201. A fan 206 is fixedly arranged inside the air inlet cylinder 205. A circular plate 207 is fixedly connected to the end of the air inlet cylinder 205. A plurality of air inlet holes 208 are provided in an annular manner at equal intervals on the circular plate 207. A motor is arranged in the air inlet cylinder 205 to drive the fan 206 to rotate, so that air can be drawn into the inner cylinder 201. A screw rod 209 is rotatably connected at the center of the circular plate 207. The end of the screw rod 209 is fixedly connected to the output end of the servo motor 210. The screw rod 209 is fixedly connected to the output end of the servo motor 210. An internal thread block 211 is screwed and sleeved on 9, and one end of a plurality of driving rods 212 is rotatably connected to the internal thread block 211 in an annular manner with equal distances, and the other ends of the plurality of driving rods 212 are rotatably connected to an adjusting plate 213, and both sides of the adjusting plate 213 are slidably embedded with a fixed rail 214 fixedly connected to the circular plate 207, and the adjusting plate 213 can be used to block the air inlet hole 208, and the size of the air inlet hole 208 can be adjusted; an electronic igniter 204 is fixedly provided at the end of the conical head 202, and the natural gas spray gun can be ignited by the electronic igniter 204.

[0024] Working principle: When in use, open the solenoid valve 108, and natural gas can be introduced into the fuel chamber 105 through the natural gas pipe 107, and then the natural gas can be aimed at the conical head 202 through the nozzles 112 on the multiple chamber columns 111 to spray the natural gas. At the same time, the motor in the air intake cylinder 205 can drive the fan 206 to rotate, so that air can be drawn into the air intake cylinder 205 and the inner cylinder 201, and the air will be discharged through the exhaust hole 203 of the conical head 202 at the end of the inner cylinder 201, so that the air flow and the natural gas flow form a certain angle, which is conducive to the mixing of air and natural gas, and then through the electronic blower The firearm 204 produces an electric spark, thereby igniting the mixed fuel, and the flame can be ejected from the flame column 103. The output end of the servo motor 210 drives the screw 209 to rotate, thereby driving the internal thread block 211 to move, thereby driving multiple drive rods 212 to rotate, and one end of the drive rod 212 drives the adjustment plate 213 to slide in the fixed rail 214. In this way, the size of the air inlet hole 208 can be adjusted according to the gas pressure of the natural gas, thereby adjusting the size of the air flow, so that a sufficient amount of air can be mixed with the fuel, so that the natural gas in the natural gas spray gun can burn fully and the flame can remain concentrated.

[0025] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0026] The above contents are merely examples and explanations of the present utility model. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of the present utility model.

Claims

1. A natural gas spray gun structure, characterized in that: The invention comprises an outer cylinder (101), wherein an inner cylinder (201) is fixedly sleeved inside the outer cylinder (101), a conical head (202) is fixedly connected to the end of the inner cylinder (201), a plurality of exhaust holes (203) are equidistantly provided in an annular manner on the outer wall of the conical head (202), a fuel cavity (105) is provided between the outer cylinder (101) and the inner cylinder (201), a round cover (102) is fixedly connected to the end of the outer cylinder (101), a mixing cavity (106) is provided inside the round cover (102), a flame column (103) is fixedly connected at the center position of the end of the round cover (102), a plurality of cavity columns (111) connected to the interior of the outer cylinder (101) are fixedly connected to the end of the outer cylinder (101) at an annular manner at an equal distance, and a plurality of nozzles (112) are fixedly connected to the outer wall of the cavity column (111) at an equal distance.

2. A natural gas spray gun structure according to claim 1, characterized in that: An air intake cylinder (205) which is in communication with the interior of the inner cylinder (201) is fixedly connected to the center position of the end of the inner cylinder (201), a fan (206) is fixedly arranged inside the air intake cylinder (205), a circular plate (207) is fixedly connected to the end of the air intake cylinder (205), and a plurality of air intake holes (208) are provided in an annular manner at equal intervals on the circular plate (207).

3. A natural gas spray gun structure according to claim 1, characterized in that: The top of the outer cylinder (101) is fixedly connected to a natural gas pipe (107) communicating with the interior thereof, and an electromagnetic valve 1 (108) is fixedly arranged on the outer wall of the natural gas pipe (107). The bottom of the outer cylinder (101) is fixedly connected to a liquefied gas pipe (109) communicating with the interior thereof, and an electromagnetic valve 2 (110) is fixedly arranged on the outer wall of the liquefied gas pipe (109).

4. A natural gas spray gun structure according to claim 2, characterized in that: A screw rod (209) is rotatably connected at the center of the circular plate (207), and the end of the screw rod (209) is fixedly connected to the output end of the servo motor (210). An internal thread block (211) is screwed and sleeved on the screw rod (209), and one end of a plurality of driving rods (212) are rotatably connected to the internal thread block (211) at an annular distance, and the other ends of the plurality of driving rods (212) are rotatably connected to an adjustment plate (213), and both sides of the adjustment plate (213) are slidably embedded with fixed rails (214) fixedly connected to the circular plate (207).

5. A natural gas spray gun structure according to claim 1, characterized in that: An electronic lighter (204) is fixedly arranged at the end of the conical head (202).

6. A natural gas spray gun structure according to claim 1, characterized in that: A mounting ring (104) is fixedly sleeved on one end of the outer wall of the outer cylinder (101).

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