Flame energy-gathering pressurizing spray gun

Abstract

The utility model relates to a spray gun, in particular to an efficient energy-saving device of a spray gun suitable for fuel gas and fuel oil. The device consists of a spray gun assembly, an energy gathering ring and a connecting steel wire, wherein the energy gathering ring is separated from a spray pipe of the spray gun assembly and is connected by the steel wire with small cross section area and long length; the energy gathering ring pressurizes flowing damping of combustion gas, the energy gathering ring is large in heat gathering energy, fuel is fully combusted, and the heat energy of sprayed flames is large. Therefore, the heat efficiency of the spray gun is improved.

Description

Field of the Invention

[0001] The utility model relates to a gas and oil burner, in particular to a gas and oil spray gun. Background Art

[0002] Existing gas and oil spray guns spray fuel directly and rapidly from the nozzle after combustion. The resulting flame gas has a high velocity and low pressure, and the gas density is low, resulting in a low mass per unit volume. Consequently, the flame generates little effective heat energy. The combustion gas guide at the nozzle is directly connected to the spray gun tube, and the heat energy absorbed by it is lost to the nozzle tube. This results in low thermal efficiency. Summary of the Invention

[0003] In order to solve the above technical problems, the utility model adopts a flame energy-gathering and pressurized spray gun, which includes a spray gun assembly, an energy-gathering ring and a connecting steel wire.

[0004] The energy focusing ring is made of metal and is set in front of the nozzle of the spray gun assembly. It is connected to the nozzle by a connecting steel wire. The aperture of the energy focusing ring is larger than the outer diameter of the nozzle. There is a distance between the energy focusing ring and the nozzle so that they do not touch.

[0005] Furthermore, a retaining ring is provided at the front end opening of the energy focusing ring, and the outer diameter of the retaining ring is smaller than the aperture of the energy focusing ring.

[0006] Furthermore, the cross-sectional area of the connecting steel wire is less than 0.2 square centimeters, one end of the connecting steel wire is connected to the outer wall of the energy focusing ring, and the other end is connected to the outer wall of the nozzle after being bent several times.

[0007] The utility model discloses a flame-focusing and pressurized spray gun. During operation, gas or fuel is ignited through the spray gun assembly and ejected from the nozzle. The outer diameter of the nozzle is smaller than the aperture of the focusing ring, and the focusing ring and the nozzle are spaced apart so as not to contact each other. The combustion gas flows rapidly, and the air pressure is greater than the pressure perpendicular to the flow direction of the combustion gas, exerting pressure on the combustion gas. The combustion gas enters the focusing ring. A retaining ring is provided at the front aperture of the focusing ring. The aperture wall and retaining ring dampen the flow of the combustion gas, reducing the combustion gas velocity, increasing the pressure, density, temperature, and heat energy per unit volume. The focusing ring is made of metal, which has a high heat-concentrating capacity. For the same volume of gas and temperature, the metal concentrates over 2,000 times the heat energy of the gas. The focusing ring concentrates a large amount of heat energy, enabling more complete combustion of the combustion gas and producing a greater amount of flame heat energy. The connecting wire has a cross-sectional area of less than 0.2 square centimeters and is bent several times to connect the focusing ring and the nozzle. The cross-sectional area of the connecting steel wire is small and the length is long; the heat energy transferred from the energy-focusing ring to the nozzle is reduced, thereby reducing the heat energy loss. As a result, the flame energy-focusing booster spray gun has high thermal efficiency and emits high thermal energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 This is a structural diagram of the first embodiment of the utility model

[0009] Figure 2 It is another structural diagram of an embodiment of the utility model. DETAILED DESCRIPTION

[0010] See also Figure 1 、 Figure 2 The utility model is a flame energy-gathering and pressurized spray gun, which consists of a spray gun assembly 1, an energy-gathering ring 2 and a connecting steel wire 3. The energy-gathering ring 2 is made of metal and is arranged in front of the nozzle of the nozzle 11 of the spray gun assembly 1. It is connected to the nozzle 11 by the connecting steel wire 3. The aperture of the energy-gathering ring 2 is larger than the outer diameter of the nozzle 11. The energy-gathering ring 2 and the nozzle 11 leave a gap for air to enter and do not contact each other; the energy-gathering ring 2 includes a retaining ring 21 provided at its front end aperture, and the outer diameter of the retaining ring 21 is smaller than the aperture of the energy-gathering ring 2; the connecting steel wire 3 has a cross-sectional diameter of 3 mm, one end of which is connected to the outer wall of the energy-gathering ring 2, and the other end is connected to the outer wall of the nozzle 11 after being bent several times.

[0011] The present invention is not limited to the above-mentioned embodiments. Anyone should be aware that any technical solution identical or similar to the present invention made under the inspiration of the present invention falls within the protection scope of the present invention.

Claims

1. A flame energy-gathering and pressurized spray gun, comprising a spray gun assembly (1), an energy-gathering ring (2), and a connecting steel wire (3), characterized in that: The energy-gathering ring (2) is made of metal and is arranged in front of the nozzle of the nozzle (11) of the spray gun assembly (1). It is connected to the nozzle (11) by a connecting steel wire (3). The aperture of the energy-gathering ring (2) is larger than the outer diameter of the nozzle (11). The energy-gathering ring (2) and the nozzle (11) are spaced apart and do not contact each other.

2. The flame focusing booster spray gun according to claim 1, characterized in that: The energy-gathering ring (2) comprises a retaining ring (21) provided at the front end opening, wherein the outer diameter of the retaining ring (21) is smaller than the aperture of the energy-gathering ring (2).

3. The flame focusing booster spray gun according to claim 1, characterized in that: The cross-sectional area of the connecting steel wire (3) is less than 0.2 square centimeters, one end of which is connected to the outer wall of the energy-gathering ring (2), and the other end of which is connected to the outer wall of the nozzle (11) after being bent several times.

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