WO2003092948A1

WO2003092948A1 - Gasoline cutting torch

Info

Publication number: WO2003092948A1
Application number: PCT/CN2003/000296
Authority: WO
Inventors: Zhenjun Wang; Wanlong Luo
Original assignee: Yoshihiko, Toda; Chung, Pojung
Priority date: 2002-04-30
Filing date: 2003-04-23
Publication date: 2003-11-13
Also published as: AU2003231493A8; AU2003231493A1

Abstract

The invention relates to a kind of gasoline cutting torch, which includes a cutting tip, an internal tip of the cutting tip and a sleeve of the cutting tip. Annular leaves are arranged at equal spacing in the internal tip of the cutting tip. Each leaf has an indentation. All the indentations are spirally inclined along the axis, which increases the controlling accuracy of gasoline supply and avoids the problems of gasoline dropping and had atomization. Besides, the cutting oxygen hole of the internal tip is overlaid with a stainless steel liner, which decreases difficulties of machining, increases the concentricity, lengthens the cutting line and improves cutting effects.

Description

TECHNICAL FIELD

The invention relates to a cutting device, in particular to an improvement of a gasoline cutting torch.

Background technique

At present, the commonly used gasoline cutting torch uses oxygen and the oxygen formed by mixing gasoline and gasoline combustion gas to cut. The preheating time is short and the cutting speed is fast. However, there is usually a non-uniform atomization of gasoline gas, large atomized particles, and easy to cut. There are shortcomings such as oil leakage, dripping oil, fire break, panting, etc., and the combustion is not sufficient and unstable, which is likely to cause waste of energy and pollute the environment more seriously. In addition, the cutting nozzle is prone to carbon blockage and the life of the cutting nozzle is low. Unnecessary economic losses. The commonly used gasoline torch currently includes a cutting nozzle, which is composed of an inner nozzle and a jacket. The inner nozzle is generally made of brass. The inner nozzle has a cutting oxygen hole. The diameter of the cutting oxygen hole is very small. , The finish is not high, and the cutting line is not obvious; in addition, it is difficult to ensure the concentricity of the small hole and the large hole during processing, which will skew the cutting line and affect the cutting effect; and because of long-term work, it is easy to form carbon on the cutting oxygen hole The clogging needs to be cleaned in time. The cleanliness of the cutting oxygen hole will be destroyed during the cleaning, thereby affecting the cutting effect. In addition, because the gasoline refueling control accuracy is not high, gasoline atomization is not good during work, and problems such as dripping oil, fire, and unstable combustion are easy to occur.

Invention Disclosure

The technical problem to be solved by the present invention is to provide an improved gasoline cutting torch, which has uniform gasoline atomization and is not easy to leak oil or drip oil.

Another object of the present invention is to solve the technical problems such as the low smoothness, misalignment, and skewed cutting lines of cutting oxygen holes in the cutting nozzle existing in the existing gasoline cutting torch.

The invention provides a gasoline cutting torch, which includes a gasoline refueling control device and a cutting nozzle. The cutting nozzle further includes an inner nozzle and a jacket with a cutting oxygen hole inside, and is characterized in that the inner nozzle is provided with an interval arrangement A circular blade, the blade is provided with a gap.

The aforementioned gasoline cutting torch is characterized in that the notches are arranged in an oblique spiral shape along the axial direction. The above-mentioned gasoline cutting torch is characterized in that: every seven spiral notches on the blade rotate one revolution. The above gasoline torch is characterized in that: the cutting oxygen hole is inlaid with a nest.

The above gasoline torch is characterized in that: the nest is a stainless steel nest.

The above-mentioned gasoline cutting torch is characterized in that: the nesting is a Laval quick-hole type with an air outlet. The invention also has the following features: The gasoline refueling control device adopts a short valve needle structure with good processability. In order to improve the control accuracy of gasoline refueling, the controlled gasoline is delivered to the cutting nozzle for atomization by using a capillary tube. In addition, in order to prevent gasoline leakage, a gasoline inlet valve is added, and a high-density filter element is added at the interface to prevent dust from entering the oil circuit and causing capillary blockage. At the same time, it has the effect of preventing tempering.

• The gasoline torch adopting the above structure, because the annular blades arranged on the inner nozzle of the cutting nozzle are arranged at intervals, can block the sprayed gasoline that has not been atomized, and solves the problems of dripping and oil leakage. Because each blade has a notch, all the notches are arranged in an oblique spiral along the axis direction. After the gasoline that has not been atomized is dropped on the blade, it goes down the spiral notch, extending the gasoline path, increasing from 75mm to 360mm, make gasoline and oxygen fully mixed, so as to achieve a good atomization effect, and the combustion is more stable. In addition, the present invention is embedded with a stainless steel nest in the oxygen cutting hole. When the oxygen cutting hole is drilled, the diameter can be processed larger, which improves the concentricity, makes the cutting line longer, and improves the cutting effect. Good heat resistance, smooth inner wall, obvious cutting line and long service life.

Brief description of the drawings

1 is a front view of a gasoline cutting torch according to the present invention;

2 is a sectional view of a cutting nozzle of the present invention;

FIG. 3 is an enlarged view of part I in FIG. 2;

FIG. 4 is a view in the direction of the arrow A in FIG. 2;

5 is an enlarged view of a blade in FIG. 2;

Fig. 6 is an assembly sectional view of the hose nozzle and the quick connector in Fig. 1.

Among them, 1-cut nozzle, 2-cut nozzle jacket, 3-cut nozzle sealing nut, 4-cut nozzle joint, 5-cut oxygen tube, 6-mixed gas tube, 7-preheated oxygen regulating valve, 8-cut oxygen adjustment Valve, 9-gasoline regulating valve, 10-hose nipple, 11-quick coupling, 12-gasoline filter element, 13-oil inlet valve, 14-valve needle, 15-capillary tube, 16-cut nozzle inner nozzle, 17-stainless steel Nesting, 18-cut oxygen hole, 19-blade, 20-notch, 52-connector mouthpiece, 53-valve spring, 54-sealing ring, 55-valve, 56-0 type sealing ring, 57-steel ball, 58 -Joint jacket, 59-spring. The best way to implement the invention

In the embodiment of the present invention shown in FIGS. 1-5, the gasoline cutting torch consists of a cutting nozzle 1, a cutting nozzle jacket 2, a cutting nozzle sealing nut 3, a cutting nozzle joint 4, a cutting oxygen pipe 5, a gas mixture pipe 6, and a Composed of hot oxygen regulating valve 7, cutting oxygen regulating valve 8, gasoline regulating valve 9, hose nipple 10, quick connector 11, gasoline filter 12, oil inlet valve 13, valve needle 14, capillary tube 15. Among them, the cutting nozzle 1 further includes a cutting nozzle inner nozzle 16 and a cutting nozzle jacket 2. The cutting nozzle inner nozzle 16 is provided with a cutting oxygen hole 18, and the cutting oxygen hole 18 is inlaid with a stainless steel nest 17. The inner nozzle 16 of the cutting nozzle is provided with annular blades 19 arranged at intervals. Each blade 19 is provided with a gap 20, and all the gaps 20 are arranged in an oblique spiral along the axis direction. The gaps 20 on every 7 blades 19 One rotation makes the gasoline passage greatly longer. After the gasoline that has not been atomized is dropped on the blade 19, it goes down the spiral notch 20, extending the gasoline path, increasing from 75mm to 360mm, so that the gasoline and oxygen are fully mixed, so as to achieve a good atomization effect, and Burning is more stable.

In FIGS. 2 and 3, the gasoline cutting torch of the present invention is inlaid with a stainless steel insert 17 in the cutting oxygen hole 18, thereby reducing the processing difficulty of the cutting inner nozzle 16.

In FIG. 1, the present invention uses a short valve needle structure with good processability to improve the control accuracy of gasoline refueling, and sends the controlled gasoline to the cutting nozzle for atomization by using a capillary tube.

In addition, in order to prevent gasoline from leaking, the gasoline inlet is increased, and a high-density filter element 12 is added at the interface to prevent dust from entering the oil path and causing capillary blockage, and at the same time it has the effect of preventing flashback.

In FIG. 5, in the embodiment of the present invention, the hose nozzle 10 of the gasoline torch can be quickly inserted into the quick connector 11. When the hose nozzle 10 is inserted into the quick connector 11, the quick connector 11 is inserted into the quick connector 11. The valve spring 53 is compressed, the hose nozzle 10 is inserted into the valve 15 in the quick connector 11 and the steel ball 57 on the quick connector 11 is pressed into the groove 53 of the hose nozzle 10 by the joint jacket 58, so that Achieve quick docking.

In Fig. 2 and Fig. 3, the cutting oxygen air hole adopts Laval fast hole type, the outlet wind speed is high, the wind line is long, and the cutting speed is 20-30% higher than that of ordinary cutting nozzle. The penetrating ability is strong, the cutting thickness can be increased by one grade than the ordinary cutting nozzle, the slag is discharged well, the slag on the back of the slit is less, and it is easy to remove.

Of course, the foregoing embodiments are not a limitation on the present invention, and the present invention is not limited to the above examples. Those skilled in the art should also make changes, modifications, additions or substitutions within the essential scope of the present invention. It belongs to the protection scope of the present invention.

Industrial applicability

Because the present invention is embedded with a stainless steel nest in the oxygen cutting hole, the diameter of the oxygen cutting hole can be processed larger when drilling the oxygen hole, which improves the concentricity, makes the cutting line straight, and improves the cutting effect. Good heat resistance, smooth inner wall, obvious cutting line and long service life. In addition, the present invention has annular blades arranged at intervals on the inner nozzle of the cutting nozzle, which can block the sprayed gasoline that has not been atomized, and solves the problems of dripping and oil leakage. In addition, each blade has a gap, and all gaps Arranged in an oblique spiral along the axis direction. After the non-atomized gasoline drops on the blades, it goes down the spiral notch, extending the gasoline path, increasing from 75mm to 360min, so that the gasoline and oxygen are fully mixed to achieve a very good Good atomization effect, and more stable combustion.

Claims

Claim

1. A gasoline cutting torch, comprising a gasoline refueling control device and a cutting nozzle, the cutting nozzle further comprising an inner nozzle and a jacket with a cutting oxygen hole inside, characterized in that the inner nozzle is provided with a ring array arranged at intervals. Blade, said blade is provided with a gap.

2. The gasoline cutting torch according to claim 1, wherein the notches are arranged in an oblique spiral shape along the axial direction.

3. The gasoline cutting torch according to claim 2, characterized in that the spiral notch on each of the seven blades rotates once.

4. The gasoline cutting torch according to claim 1, 2 or 3, characterized in that: the cutting oxygen hole is embedded with a nest. .

5. The gasoline cutting torch according to claim 4, wherein the nesting is a stainless steel insert. '

6. The gasoline cutting torch according to claim 4, characterized in that: the nested air outlet is a Ladale quick hole type.

7. The gasoline cutting torch according to claim 5, wherein: the nested air outlet is a Laval fast-hole type.

8. The gasoline cutting torch according to claim 1, wherein the gasoline valve of the gasoline refueling control device adopts a short valve needle, and conveys gasoline to the cutting nozzle through a capillary tube.

9. The gasoline cutting torch according to claim 1 or 6, wherein a filter element and an oil inlet switch are added at an inlet of the gasoline fueling control device.