Negative-pressure self-suction windproof energy-saving burner

Abstract

The utility model provides a negative-pressure self-suction type windproof energy-saving fire nozzle. The negative-pressure self-suction type windproof energy-saving fire nozzle comprises an L-shaped ventilation pipe, a choke, a fire fixing cover and a fire spraying nozzle. The choke is mounted in an inner cavity of the vertical section of the L-shaped ventilation pipe; the fire fixing cover is installed at the end of the horizontal section of the L-shaped ventilation pipe and covers one end of the fire spraying nozzle. One end of the flame nozzle penetrates through the bottom of the horizontal section of the L-shaped ventilation pipe, and the other end of the flame nozzle extends into the fire fixing cover; the choke device, the L-shaped ventilation pipe, the fire fixing cover and the fire spraying nozzle are sequentially communicated. According to the structure, flame combustion can be more stable, air inlet is stable, the structure is more suitable for low-pressure combustion, the structure can make full contact with the hearth and the furnace wall, and heat absorption is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of natural gas combustion equipment, and particularly relates to a negative pressure self-suction type windproof energy-saving burner. BACKGROUND

[0002] At present, the gas pressure fluctuates greatly in some production sites, and the gas quality is poor. Wellhead associated gas is used without treatment. The burner used is only a straight steel pipe connected to the ignition end of the natural gas pipeline. The flame is blown into the heating furnace by the self-pressure in the natural gas pipeline. Since there is no shielding at the air inlet, the flame is easily blown out in windy weather. The flame is easily extinguished when the damper is opened, and the flame is easily insufficiently supplied with oxygen when the damper is too small, resulting in incomplete combustion, black smoke from the chimney, carbon deposition, and air pollution. The full-automatic burner uses forced air. When the gas pressure is too low, the flame is easily automatically extinguished. The untreated gas contains water and condensate oil, which is easy to block the electronic controller. CONTENT OF THE UTILITY MODEL

[0003] One of the purposes of the present application is to provide a negative pressure self-suction type windproof energy-saving burner to solve the problems of easy extinguishment and poor combustion effect of the existing burner for a boiler.

[0004] The technical solution of the present application is as follows:

[0005] A negative pressure self-suction type windproof energy-saving burner, comprising an L-shaped ventilation pipe, a wind-resisting device, a flame-retaining cover, and a flame spout. The wind-resisting device is installed in the inner cavity of the vertical section of the L-shaped ventilation pipe. The flame-retaining cover is installed on the end of the horizontal section of the L-shaped ventilation pipe and covers one end of the flame spout. One end of the flame spout penetrates through the bottom of the horizontal section of the L-shaped ventilation pipe, and the other end extends into the flame-retaining cover. The wind-resisting device, the L-shaped ventilation pipe, the flame-retaining cover, and the flame spout are sequentially communicated.

[0006] As a technical solution of the present application, the wind-resisting device comprises a plurality of circular metal sheets which are sequentially and spaced apart from bottom to top. Each of the circular metal sheets is clamped to the inner circumferential wall of the vertical section of the ventilation pipe and is provided with a plurality of first ventilation holes which penetrate through the top and bottom and have a diameter of 8 mm.

[0007] As a technical solution of the present application, the circular metal sheets include four, and the spacing between adjacent circular metal sheets is the same.

[0008] As a technical solution of the present application, the inner circumferential wall of the vertical section of the ventilation pipe is provided with a plurality of annular grooves which are sequentially and spaced apart from bottom to top. The circular metal sheets are clamped in the corresponding annular grooves.

[0009] As a technical scheme of the present application, the L-shaped ventilation pipe comprises a vertical pipe and a horizontal pipe which are vertically communicated; the wind blocker is installed in the inner cavity of the vertical pipe; a positioning disc is installed on the end of the horizontal pipe, the positioning disc is coaxially arranged with the horizontal pipe and has a diameter larger than that of the horizontal pipe, three waist-shaped ventilation openings are formed in the positioning disc and penetrate through opposite sides in the circumferential direction; the fireproof cover is installed on the middle part of the positioning disc and is in communication with the horizontal pipe.

[0010] As a technical scheme of the present application, the fireproof cover is a metal cylindrical tube with open ends, and a plurality of rows of second ventilation holes are formed in the lateral side of the metal cylindrical tube.

[0011] As a technical scheme of the present application, the height of the fireproof cover is 140 mm, the diameter is 84 mm, and the diameter of the second ventilation hole is 8 mm.

[0012] As a technical scheme of the present application, the fire nozzle comprises a vertical connecting pipe, an elbow pipe, a horizontal connecting pipe and a nozzle head which are sequentially communicated; one end of the vertical connecting pipe penetrates through the bottom of the horizontal section of the L-shaped ventilation pipe; one end of the elbow pipe is threadedly connected with the other end of the vertical connecting pipe, and the other end is threadedly connected with the small end of the horizontal connecting pipe, and the large end of the horizontal connecting pipe is threadedly connected with the nozzle head; the ignition end of the nozzle head adopts a small-hole multi-eye inclined surface nozzle.

[0013] As a technical scheme of the present application, the length of the vertical connecting pipe is 110 mm, and the length of the horizontal connecting pipe is 41 mm; the nozzle head is in the shape of a cylinder and has a length of 30 mm.

[0014] The present application has the following beneficial effects:

[0015] In the negative pressure self-suction type windproof energy-saving fire nozzle of the present application, the fire nozzle is convenient to install and dismount, and the accessories are easy to replace; through the modification of the nozzle head, a small-hole multi-eye inclined surface nozzle is used, which can adapt to low gas pressure combustion, can normally burn when the gas pressure is as low as 0.01 MPa, greatly improves the combustion efficiency, fully contacts the furnace chamber and furnace wall, improves the heat absorption, and is not easy to accumulate carbon. Moreover, through the addition of the fireproof cover, the flame combustion is more stable, and the outer flame can fully extend outward; in addition, through the addition of the four-stage wind blocker at the air inlet, the wind speed can be blocked, the air inlet is stable, the flame combustion is more stable, and the flame can normally burn in windy weather. Therefore, the whole can realize the effects of negative pressure, self-suction and windproof, and can provide a stable combustion condition, ensure stable combustion in the furnace, and reduce the loss of manpower and material resources. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some of the embodiments of the present application, and therefore should not be considered as limiting the scope. For those skilled in the art, other related drawings can also be obtained without creative labor.

[0017] Figure 1 The negative pressure self-suction type windproof energy-saving burner provided by the embodiments of the present application is shown in the schematic diagram.

[0018] Figure 2 The first angle of the negative pressure self-suction type windproof energy-saving burner provided by the embodiments of the present application is shown in the schematic diagram.

[0019] Figure 3 The schematic diagram of the spray burner provided by the embodiments of the present application is shown in the schematic diagram.

[0020] Figure: 1-L type ventilation pipe; 2-wind resistance device; 3-fireproof cover; 4-spray burner; 5-vertical connecting pipe; 6-elbow; 7-horizontal connecting pipe; 8-burner head. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solutions and advantages of the embodiments of the present application more clear, the following will combine the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are some of the embodiments of the present application, but not all the embodiments. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of the present application.

[0023] It should be noted that: similar numbers and letters represent similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0024] In the description of the present application, it should be noted that the terms "upper", "lower", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship when the product of the utility model is usually placed, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be understood as limiting the present application.

[0025] Furthermore, in the present application, unless specifically stated and limited otherwise, the first feature above or below the second feature can include that the first and second features are in direct contact, or can include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature above, over and on the second feature includes that the first feature is directly above and obliquely above the second feature, or only means that the first feature is higher in horizontal height than the second feature. The first feature below, under and under the second feature includes that the first feature is directly below and obliquely below the second feature, or only means that the first feature is lower in horizontal height than the second feature.

[0026] Furthermore, the terms "horizontal", "vertical" and the like terms do not mean that the components must be absolutely horizontal or vertical, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0027] In the description of the present application, it should also be noted that, unless specifically stated and limited otherwise, the terms "provided", "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be connected inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0028] Embodiment:

[0029] Please refer to Figure 1 , in conjunction with Figure 2 and Figure 3 , the present application provides a negative pressure self-suction type windproof energy-saving burner, which mainly comprises an L-shaped ventilation pipe 1, a wind blocker 2, a fire cover 3 and a spray burner 4; wherein the wind blocker 2 is installed in the inner cavity of the vertical section of the L-shaped ventilation pipe 1, which is used to resist the wind speed, so that the incoming air is stable, and the flame burning is more stable; at the same time, the fire cover 3 is installed on the end of the horizontal section of the L-shaped ventilation pipe 1, and covers one end of the spray burner 4; and one end of the spray burner 4 penetrates through the bottom of the horizontal section of the L-shaped ventilation pipe 1, and the other end extends into the fire cover 3; in addition, the wind blocker 2, the L-shaped ventilation pipe 1, the fire cover 3 and the spray burner 4 are sequentially communicated.

[0030] Further, the L-shaped ventilation pipe 1 comprises a vertical pipe and a horizontal pipe which are vertically communicated; wherein the air baffle 2 is installed in the inner cavity of the vertical pipe; a positioning disc is installed on the end of the horizontal pipe, the positioning disc is coaxially arranged with the horizontal pipe and has a diameter larger than that of the horizontal pipe, three waist-shaped ventilation openings are formed on the positioning disc and penetrate through the opposite sides in the circumferential direction; the fireproof cover 3 is installed on the middle part of the positioning disc and is communicated with the horizontal pipe, and is located at the center of the air door. A flame observation hole is formed on the positioning disc and is located at the upper part of the fireproof cover 3 and the upper center of the air door. The diameters of the vertical pipe and the horizontal pipe are both 180 mm, and the diameter of the positioning disc is 240 mm.

[0031] Further, the air baffle 2 comprises a plurality of circular metal sheets which are sequentially and spacedly arranged from bottom to top, each of the circular metal sheets is clamped on the inner circumferential wall of the vertical pipe of the ventilation pipe and is provided with a plurality of first ventilation holes which penetrate through the top and the bottom and have a diameter of 8 mm.

[0032] Specifically, in the embodiment, the circular metal sheets are four, and the spacing between the adjacent circular metal sheets is the same. In other embodiments, the number of the circular metal sheets can be three, five, six, etc., and the number and diameter of the first ventilation holes thereon can be designed differently according to actual use requirements, and are not limited to the number, arrangement and diameter of the design in the embodiment.

[0033] Meanwhile, a plurality of annular grooves are formed on the inner circumferential wall of the vertical section of the ventilation pipe and are sequentially and spacedly arranged from bottom to top, and the circular metal sheets are clamped in the corresponding annular grooves.

[0034] In addition, the fireproof cover 3 is a metal cylindrical tube with open ends, a plurality of second ventilation holes which are uniformly distributed and have the same diameter are formed on the circumferential side of the metal cylindrical tube, which aims to make the flame burn more stably. In the embodiment, the height of the fireproof cover 3 is 140 mm, the diameter is 84 mm, and the diameter of the second ventilation hole is 8 mm; in other embodiments, the height and diameter of the fireproof cover 3 can be designed differently according to actual use requirements, and are not limited to the design in the embodiment, and the number and diameter of the second ventilation holes can be designed differently according to actual use requirements, and are not limited to the number, arrangement and diameter of the design in the embodiment.

[0035] And, the flame spout 4 comprises a vertical connecting pipe 5, an elbow pipe 6, a horizontal connecting pipe 7 and a spout head 8 in sequence; wherein one end of the vertical connecting pipe 5 penetrates through the bottom of the horizontal section of the L-shaped ventilation pipe 1; meanwhile, one end of the elbow pipe 6 is threadedly connected with the other end of the vertical connecting pipe 5, and the other end is threadedly connected with the small end of the horizontal connecting pipe 7, and the large end of the horizontal connecting pipe 7 is threadedly connected with the spout head 8; the ignition end of the spout head 8 adopts a small-hole multi-eye inclined plane flame spout, which is more suitable for low gas pressure combustion, fully contacts the furnace wall, and improves the heat absorption. And, in the embodiment, the length of the vertical connecting pipe 5 is 110 mm, the length of the horizontal connecting pipe 7 is 41 mm, and the diameter of the small end of the horizontal connecting pipe 7 is 7.5 mm; the spout head 8 is in the shape of a cylinder, and the length is 30 mm.

[0036] In use, the flame spout 4 is assembled together first, then the flame spout 4 is installed on the L-shaped ventilation pipe 1, then the wind blocker 2 is connected, then the flame fixing cover 3 is installed at the periphery of the flame spout 4 and the center position of the air door, and finally the whole negative pressure self-suction windproof energy-saving flame spout is installed on the heating furnace for use.

[0037] As can be seen from the above, the negative pressure self-suction windproof energy-saving flame spout has the advantages that the flame spout 4 is convenient to install and disassemble, the accessories are easy to replace, the small-hole multi-eye inclined plane flame spout is used through the modification of the spout head 8, which is more suitable for low gas pressure combustion, can normally burn when the gas pressure is as low as 0.01 MPa, greatly improves the combustion efficiency, fully contacts the furnace wall, improves the heat absorption, and is not easy to accumulate carbon. And, the flame burning is more stable through the increase of the flame fixing cover 3, and the outer flame can fully extend outward; in addition, the wind speed is blocked through the increase of the four-stage wind blocker 2 at the air inlet, so that the air inlet is stable, and the flame burning is more stable, which can normally burn in windy weather. Therefore, the whole can realize the effects of negative pressure, self-suction and windproof, and can provide a stable combustion condition, ensure the stable combustion in the furnace, and reduce the loss of manpower and material resources.

[0038] The above only describes the preferred embodiments of the present application and is not used to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A negative pressure self-priming windproof and energy-saving burner, characterized in that, It includes an L-shaped ventilation duct, an air baffle, a fireproof cover, and a flame nozzle; the air baffle is installed in the inner cavity of the vertical section of the L-shaped ventilation duct; the fireproof cover is installed on the end of the horizontal section of the L-shaped ventilation duct and covers one end of the flame nozzle; one end of the flame nozzle passes through the bottom of the horizontal section of the L-shaped ventilation duct, and the other end extends into the fireproof cover; the air baffle, the L-shaped ventilation duct, the fireproof cover, and the flame nozzle are connected in sequence.

2. The negative pressure self-priming windproof and energy-saving burner according to claim 1, characterized in that, The wind baffle includes multiple circular metal plates arranged at intervals from bottom to top. Each circular metal plate is snapped onto the inner circumferential wall of the vertical section of the ventilation pipe and has multiple first ventilation holes with a diameter of 8mm that penetrate from the top and bottom.

3. The negative pressure self-priming windproof and energy-saving burner according to claim 2, characterized in that, The circular metal sheet comprises four pieces, and the spacing between adjacent circular metal sheets is the same.

4. The negative pressure self-priming windproof and energy-saving burner according to claim 2, characterized in that, The vertical section of the ventilation duct has multiple annular grooves arranged sequentially from bottom to top on its inner peripheral wall, and the circular metal sheet is clamped in the corresponding annular groove.

5. The negative pressure self-priming windproof and energy-saving burner according to claim 1, characterized in that, The L-shaped ventilation duct includes a vertical pipe and a horizontal pipe that are perpendicularly connected; the wind baffle is installed in the inner cavity of the vertical pipe; a positioning plate is installed on the end of the horizontal pipe, the positioning plate is coaxially arranged with the horizontal pipe and its diameter is larger than that of the horizontal pipe, and the positioning plate has three waist-shaped ventilation openings distributed circumferentially and penetrating the opposite sides; the fireproof cover is installed on the middle of the positioning plate and is connected to the horizontal pipe.

6. The negative pressure self-priming windproof and energy-saving burner according to claim 1, characterized in that, The fireproof cover is a metal cylindrical tube with openings at both ends, and multiple rows of second ventilation holes are opened on the periphery of the metal cylindrical tube.

7. The negative pressure self-priming windproof and energy-saving burner according to claim 6, characterized in that, The fireproof cover has a height of 140mm and a diameter of 84mm, and the second ventilation hole has a diameter of 8mm.

8. The negative pressure self-priming windproof and energy-saving burner according to claim 1, characterized in that, The flame nozzle includes a vertical connecting pipe, a bend, a horizontal connecting pipe, and a flame head connected in sequence; one end of the vertical connecting pipe passes through the bottom of the horizontal section of the L-shaped ventilation pipe; one end of the bend is threaded to the other end of the vertical connecting pipe, and the other end is threaded to the small end of the horizontal connecting pipe; the large end of the horizontal connecting pipe is threaded to the flame head; the ignition end of the flame head adopts a small-hole multi-aperture beveled flame nozzle.

9. The negative pressure self-priming windproof and energy-saving burner according to claim 8, characterized in that, The vertical connecting pipe is 110mm long, and the horizontal connecting pipe is 41mm long; the nozzle head is cylindrical and 30mm long.

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