Flame cutting torch appliance adopting natural gas

Abstract

The utility model discloses a flame cutting torch appliance adopting natural gas, which relates to the technical field of cutting torch appliances, and comprises a cutting torch body, the outer wall of the top of the cutting torch body is fixedly connected with a connecting column, and the outer wall of the bottom of the connecting column is provided with threads and is in threaded connection with a cutting torch sleeve. A protection assembly is arranged on the outer wall of the bottom of the cutting nozzle sleeve, and a fuel gas flux adjusting assembly communicating with the interior of the cutting nozzle sleeve is arranged on the right side wall of the cutting nozzle sleeve. By means of the protection assembly, the protection position of the hollow moving column is adjusted, the safety problem caused by metal spark splashing is avoided, meanwhile, the spiral gas mixing channel and the fuel gas groove can effectively increase the gas mixing degree and the gas flow speed, sprayed flames are more stable, and the safety performance of the burner is improved. And the arranged fuel gas flux adjusting assembly can automatically adjust the opening degree of the electromagnetic valve and accurately control the flux of fuel gas, so that fuel gas resources are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of cutting nozzles, in particular to a flame cutting cutting nozzle using natural gas. Background Art

[0002] The cutting nozzle is installed on the head of the cutting torch, which can gather flames and spray high-pressure oxygen, playing a very important role in gas cutting. Therefore, the quality of the cutting nozzle directly reflects the working efficiency of the cutting torch. This device is usually called a natural gas cutting torch or a natural gas flame cutting gun. It is a commonly used thermal cutting tool in industry. This tool uses natural gas (such as methane, ethane, etc.) mixed with oxygen, sprayed and ignited through a specific nozzle in the cutting torch, and generates a high-temperature flame to melt and blow away the material on the metal surface, thereby achieving the purpose of cutting. The existing technology has the following problems:

[0003] In the existing flame cutting cutting nozzle equipment using natural gas, when flame cutting metal, the gas is directly ejected from the gas tank, which makes the injection speed of the mixed gas insufficient. At the same time, the mixing degree of the mixed gas is not high enough, so the stability of the ejected flame is not high. In addition, the existing natural gas-specific cutting nozzle has a low oxygen combustion temperature and the flame is not concentrated enough, resulting in a short flame length. At the same time, the existing device cannot timely and effectively adjust the flow of natural gas, resulting in a waste of resources. Sparks cannot be prevented from flying during the cutting process, and there are certain safety hazards. Utility Model Content

[0004] The utility model provides a flame cutting tool using natural gas to solve the problems raised in the above background technology.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0006] A flame cutting cutting nozzle device using natural gas comprises a cutting nozzle body, the top outer wall of the cutting nozzle body is fixedly connected to a connecting column, the bottom outer wall of the connecting column is provided with a thread and is threadedly connected to a cutting nozzle sleeve, the bottom outer wall of the cutting nozzle sleeve is provided with a protective component, and the right side wall of the cutting nozzle sleeve is provided with a gas flux regulating component connected to the interior thereof.

[0007] A further improvement of the technical solution of the utility model is that a cutting oxygen channel is opened at the internal axis position of the cutting nozzle body, an oxygen connecting boss is fixedly connected to the top of the cutting nozzle body, a plurality of preheating oxygen holes distributed in a circular array are opened on the top wall of the connecting column, a mixing chamber is formed between the inner wall of the cutting nozzle sleeve and the outer wall of the cutting nozzle body, and the bottoms of the plurality of preheating oxygen holes all penetrate the bottom of the connecting column and extend to the mixing chamber.

[0008] A further improvement of the technical solution of the utility model lies in that: a spiral column fixedly connected to the outer wall of the cutting nozzle body is arranged at the lower end of the connecting column, the spiral column is located at the upper end of the mixing chamber formed between the cutting nozzle body and the cutting nozzle sleeve, the outer wall of the spiral column is provided with a plurality of spiral gas mixing channels distributed in an annular array, the positions and sizes of the plurality of spiral gas mixing channels and the plurality of preheating oxygen holes are mutually adapted, the outer wall of the lower end of the cutting nozzle body is provided with a plurality of fuel gas grooves in an annular array, and the upper end width of the plurality of fuel gas grooves is greater than the lower end width.

[0009] A further improvement of the technical solution of the utility model is that: the protective component includes an adjusting gear, the inner wall of the adjusting gear is rotatably connected to the middle part of the outer wall of the cutting nozzle sleeve, the bottom wall of the adjusting gear is fixedly connected with a hollow rotating column, the outer wall of the hollow rotating column is provided with an oblique groove, the inner wall of the oblique groove is slidably connected with a cylindrical slider, the end of the cylindrical slider away from the cutting nozzle sleeve is fixedly connected with a limiting block, the end of the cylindrical slider close to the cutting nozzle sleeve is fixedly connected with a hollow movable column, and the inner wall of the hollow movable column is slidably connected to the outer wall of the cutting nozzle sleeve.

[0010] A further improvement of the technical solution of the utility model is that the gas flux regulating component includes a pressure and flow sensor, which is fixedly connected to the middle part of the outer wall of the cutting nozzle body, the top of the outer wall of the cutting nozzle sleeve is fixedly connected to a gas intake pipe connected to its interior, the outer wall of the gas intake pipe is fixedly connected to a solenoid valve, the right side wall of the solenoid valve is fixedly connected to a control system, and the control system is electrically connected to the pressure and flow sensor and the solenoid valve respectively.

[0011] Due to the adoption of the above technical solution, the utility model has achieved the following technical progress compared with the prior art:

[0012] 1. The utility model provides a flame cutting nozzle device using natural gas, and a protective component is provided. By rotating the adjusting gear, the hollow rotating column is driven to rotate, so that the cylindrical slider and the hollow moving column move along the outer wall of the nozzle sleeve, so as to adjust the protective position of the hollow moving column and avoid the safety problems caused by metal sparks. At the same time, the spiral gas mixing channel and the gas groove can effectively increase the mixing degree of the gas and the gas flow rate, so as to make the ejected flame more stable.

[0013] 2. The utility model provides a flame cutting nozzle device using natural gas, which is provided with a gas flux regulating component, which monitors the pressure and flow of natural gas and preheated oxygen in real time through pressure and flow sensors, and the solenoid valve installed on the outer wall of the gas inlet pipe is controlled by a control system fixedly connected to the right wall. The control system automatically adjusts the opening of the solenoid valve according to the feedback signals of the pressure and flow sensors and the thickness of the metal, and accurately controls the gas flux to save gas resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the explosion structure of the utility model;

[0016] Figure 3 It is a schematic diagram of the internal structure of the utility model;

[0017] Figure 4 This is a schematic diagram of the cross-sectional structure of the cutting nozzle body of the utility model;

[0018] Figure 5 This is a schematic diagram of the structure of the gas flux regulating component of the utility model.

[0019] In the figure: 100, cutting nozzle body; 101, cutting nozzle sleeve; 102, cutting oxygen channel; 103, oxygen connecting boss; 104, preheating oxygen hole; 105, connecting column; 106, spiral column; 107, spiral gas mixing channel; 108, fuel gas groove; 2, protection component; 201, adjusting gear; 202, hollow rotating column; 203, inclined groove; 204, hollow moving column; 205, cylindrical slider; 3, fuel gas flux adjustment component; 301, pressure and flow sensor; 302, fuel gas intake pipeline; 303, solenoid valve; 304, control system. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, objectives and effects of the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods:

[0021] like Figure 1 , Figure 2 As shown, the utility model provides a flame cutting cutting nozzle device using natural gas, including a cutting nozzle body 100, the top outer wall of the cutting nozzle body 100 is fixedly connected to a connecting column 105, the bottom outer wall of the connecting column 105 is provided with a thread and is threadedly connected to a cutting nozzle sleeve 101, the bottom outer wall of the cutting nozzle sleeve 101 is provided with a protective component 2, and the right side wall of the cutting nozzle sleeve 101 is provided with a gas flux regulating component 3 connected to the interior thereof.

[0022] The connecting column 105 on the top outer wall of the cutting nozzle body 100 is tightly connected to the cutting nozzle sleeve 101 through the thread of the bottom outer wall thereof, so as to effectively prevent air leakage.

[0023] like Figure 1 , Figure 2 As shown, a cutting oxygen channel 102 is provided at the internal axis position of the cutting nozzle body 100, an oxygen connecting boss 103 is fixedly connected to the top of the cutting nozzle body 100, a plurality of preheating oxygen holes 104 distributed in a circular array are provided on the top wall of the connecting column 105, a mixing chamber is formed between the inner wall of the cutting nozzle sleeve 101 and the outer wall of the cutting nozzle body 100, and the bottoms of the plurality of preheating oxygen holes 104 all penetrate the bottom of the connecting column 105 and extend to the mixing chamber.

[0024] The cutting oxygen channel 102 opened at the inner axis position of the cutting nozzle body 100 is used to transport the oxygen required for cutting. The top of the cutting nozzle body 100 is fixed with an oxygen connection boss 103 for connecting to an external oxygen supply source.

[0025] like Figure 2 , Figure 3 As shown, the lower end of the connecting column 105 is provided with a spiral column 106 fixedly connected to the outer wall of the cutting nozzle body 100, and the spiral column 106 is located at the upper end of the mixing chamber formed between the cutting nozzle body 100 and the cutting nozzle sleeve 101. The outer wall of the spiral column 106 is provided with a plurality of spiral gas mixing channels 107 distributed in a circular array. The positions and sizes of the plurality of spiral gas mixing channels 107 and the plurality of preheating oxygen holes 104 are adapted to each other. The outer wall of the lower end of the cutting nozzle body 100 is provided with a plurality of fuel gas grooves 108 in a circular array, and the upper end width of the plurality of fuel gas grooves 108 is greater than the lower end width.

[0026] The outer wall of the lower end of the cutting nozzle body 100 is provided with a plurality of gas grooves 108 in an annular array, the upper end width of which is greater than the lower end width, which is conducive to the full mixing of the gas and oxygen. The outer wall of the spiral column 106 is provided with a plurality of spiral gas mixing channels 107 to further promote the mixing of the preheated oxygen and the gas.

[0027] When in use, first connect the oxygen connecting boss 103 to the external oxygen supply source, and the oxygen is ejected from the bottom of the cutting nozzle body 100 through the cutting oxygen channel 102. At the same time, the connecting column 105 with a preheating oxygen hole 104 on the top is connected to the preheating oxygen pipe, and the preheated oxygen enters the spiral gas mixing channel 107 through the preheating oxygen hole 104. At the same time, the fuel gas is transported to the mixing chamber formed between the cutting nozzle sleeve 101 and the cutting nozzle body 100 through the fuel gas intake pipe 302. At this time, the fuel gas and the preheated oxygen will be spirally transmitted and mixed in the spiral gas mixing channel 107, increasing the flow rate and mixing degree of the gas. The mixed gas is ejected through the fuel gas groove 108 opened on the outer wall of the bottom of the cutting nozzle body 100, and cooperates with the oxygen in the cutting oxygen channel 102 to complete the flame cutting operation, thereby improving the injection speed of the mixed gas and the mixing degree of the mixed gas, so that the ejected flame is more stable.

[0028] like Figure 2 As shown, the protective component 2 includes an adjusting gear 201, the inner wall of the adjusting gear 201 is rotatably connected to the middle part of the outer wall of the cutting nozzle sleeve 101, the bottom wall of the adjusting gear 201 is fixedly connected with a hollow rotating column 202, the outer wall of the hollow rotating column 202 is provided with an inclined groove 203, the inner wall of the inclined groove 203 is slidably connected with a cylindrical slider 205, the end of the cylindrical slider 205 away from the cutting nozzle sleeve 101 is fixedly connected to a limiting block, the end of the cylindrical slider 205 close to the cutting nozzle sleeve 101 is fixedly connected with a hollow movable column 204, and the inner wall of the hollow movable column 204 is slidably connected to the outer wall of the cutting nozzle sleeve 101.

[0029] By setting up the protective component 2, flying metal sparks can be effectively prevented. When in use, the limit block at one end of the cylindrical slider 205 prevents it from detaching, and the inner wall of the hollow movable column 204 connected to the other end is slidably connected to the outer wall of the cutting nozzle sleeve 101. By rotating the adjusting gear 201, the hollow rotating column 202 is driven to rotate, so that the cylindrical slider 205 and the hollow movable column 204 move along the outer wall of the cutting nozzle sleeve 101, thereby adjusting the protective position of the hollow movable column 204 and avoiding safety problems caused by flying metal sparks.

[0030] like Figure 3 , Figure 4 , Figure 5 As shown, the gas flux regulating component 3 includes a pressure and flow sensor 301, which is fixedly connected to the middle of the outer wall of the cutting nozzle body 100, and the top of the outer wall of the cutting nozzle sleeve 101 is fixedly connected to a gas intake pipe 302 connected to the interior thereof, and the outer wall of the gas intake pipe 302 is fixedly connected to a solenoid valve 303, and the right side wall of the solenoid valve 303 is fixedly connected to a control system 304, and the control system 304 is electrically connected to the pressure and flow sensor 301 and the solenoid valve 303, respectively.

[0031] A gas flux regulating component 3 is provided, and a pressure and flow sensor 301 is fixed on the middle of the outer wall of the cutting nozzle body 100 to monitor the pressure and flow of natural gas and preheated oxygen in real time. The solenoid valve 303 installed on the outer wall of the gas inlet pipe 302 is controlled by a control system 304 fixedly connected to the right side wall. The control system 304 automatically adjusts the opening of the solenoid valve 303 according to the feedback signal of the pressure and flow sensor 301 and the thickness of the metal, so as to accurately control the gas flux.

[0032] The following is a detailed description of the working principle of the flame cutting nozzle device using natural gas.

[0033] like Figure 1-5 As shown, when in use, first connect the oxygen connecting boss 103 to the external oxygen supply source, and the oxygen is ejected from the bottom of the cutting nozzle body 100 through the cutting oxygen channel 102. At the same time, the connecting column 105 with a preheating oxygen hole 104 on the top is connected to the preheating oxygen pipe, and the preheated oxygen enters the spiral gas mixing channel 107 through the preheating oxygen hole 104. At the same time, the fuel gas is transported to the mixing chamber formed between the cutting nozzle sleeve 101 and the cutting nozzle body 100 through the fuel gas intake pipe 302. At this time, the fuel gas and the preheated oxygen will be spirally transmitted and mixed in the spiral gas mixing channel 107, increasing the flow rate and mixing degree of the gas. The mixed gas is ejected through the fuel gas groove 108 opened on the outer wall of the bottom of the cutting nozzle body 100, and cooperates with the oxygen in the cutting oxygen channel 102 to complete the flame cutting operation, thereby improving the injection speed of the mixed gas and the mixing degree of the mixed gas, so that the ejected flame is more stable.

[0034] By setting up the protective component 2, flying metal sparks can be effectively prevented. When in use, the limit block at one end of the cylindrical slider 205 prevents it from detaching, and the inner wall of the hollow movable column 204 connected to the other end is slidably connected to the outer wall of the cutting nozzle sleeve 101. By rotating the adjusting gear 201, the hollow rotating column 202 is driven to rotate, so that the cylindrical slider 205 and the hollow movable column 204 move along the outer wall of the cutting nozzle sleeve 101, thereby adjusting the protective position of the hollow movable column 204 and avoiding safety problems caused by flying metal sparks.

[0035] A gas flux regulating component 3 is provided, and a pressure and flow sensor 301 is fixed on the middle of the outer wall of the cutting nozzle body 100 to monitor the pressure and flow of natural gas and preheated oxygen in real time. The solenoid valve 303 installed on the outer wall of the gas inlet pipe 302 is controlled by a control system 304 fixedly connected to the right wall. The control system 304 automatically adjusts the opening of the solenoid valve 303 according to the feedback signal of the pressure and flow sensor 301 and the thickness of the metal, so as to accurately control the gas flux and save gas resources.

[0036] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A flame cutting nozzle device using natural gas, comprising a nozzle body (100), characterized in that: The top outer wall of the cutting nozzle body (100) is fixedly connected to a connecting column (105), the bottom outer wall of the connecting column (105) is provided with a thread and is threadedly connected to a cutting nozzle sleeve (101), the bottom outer wall of the cutting nozzle sleeve (101) is provided with a protective component (2), and the right side wall of the cutting nozzle sleeve (101) is provided with a gas flux regulating component (3) connected to the interior thereof.

2. A flame cutting nozzle device using natural gas according to claim 1, characterized in that: A cutting oxygen channel (102) is provided at the internal axis position of the cutting nozzle body (100); an oxygen connection boss (103) is fixedly connected to the top of the cutting nozzle body (100); a plurality of preheating oxygen holes (104) distributed in a ring array are provided on the top wall of the connecting column (105); a mixing chamber is formed between the inner wall of the cutting nozzle sleeve (101) and the outer wall of the cutting nozzle body (100); and the bottoms of the plurality of preheating oxygen holes (104) all penetrate the bottom of the connecting column (105) and extend to the mixing chamber.

3. A flame cutting nozzle device using natural gas according to claim 2, characterized in that: The lower end of the connecting column (105) is provided with a spiral column (106) fixedly connected to the outer wall of the cutting nozzle body (100), and the spiral column (106) is located at the upper end of the mixing chamber formed between the cutting nozzle body (100) and the cutting nozzle sleeve (101). The outer wall of the spiral column (106) is provided with a plurality of spiral gas mixing channels (107) distributed in an annular array, and the positions and sizes of the plurality of spiral gas mixing channels (107) and the plurality of preheating oxygen holes (104) are adapted to each other. The outer wall of the lower end of the cutting nozzle body (100) is provided with a plurality of fuel gas grooves (108) in an annular array, and the upper end width of the plurality of fuel gas grooves (108) is greater than the lower end width.

4. A flame cutting nozzle device using natural gas according to claim 1, characterized in that: The protective component (2) comprises an adjusting gear (201), the inner wall of which is rotatably connected to the middle part of the outer wall of the cutting nozzle sleeve (101), the bottom wall of which is fixedly connected to a hollow rotating column (202), the outer wall of which is provided with an inclined groove (203), the inner wall of which is slidably connected to a cylindrical slider (205), the end of which away from the cutting nozzle sleeve (101) is fixedly connected to a limiting block, the end of which close to the cutting nozzle sleeve (101) is fixedly connected to a hollow movable column (204), the inner wall of which is slidably connected to the outer wall of the cutting nozzle sleeve (101).

5. The flame cutting nozzle device using natural gas according to claim 1, characterized in that: The gas flux regulating component (3) comprises a pressure and flow sensor (301), the pressure and flow sensor (301) is fixedly connected to the middle part of the outer wall of the cutting nozzle body (100), the top of the outer wall of the cutting nozzle sleeve (101) is fixedly connected to a gas intake pipeline (302) which is in communication with the interior thereof, the outer wall of the gas intake pipeline (302) is fixedly connected to a solenoid valve (303), the right side wall of the solenoid valve (303) is fixedly connected to a control system (304), and the control system (304) is electrically connected to the pressure and flow sensor (301) and the solenoid valve (303), respectively.

Images