Wide-load adjustable acid gas spray gun

Abstract

The utility model provides a wide-load adjustable acid gas spray gun, and relates to the technical field of sulfur recovery. The wide-load adjustable acid gas spray gun comprises an acid gas pipe, a fuel gas pipe is arranged in the acid gas pipe, the side end of the acid gas pipe is connected with an acid gas spray head, a movable pipe is arranged between the acid gas pipe and the fuel gas pipe, the side end of the movable pipe is connected with an adjustable flow guide cone, and the side end of the fuel gas pipe is provided with a fixed flow guide cone. According to the wide-load adjustable acid gas spray gun, the adjusting pull rod and the movable pipe are arranged, the adjusting pull rod can move through the adjusting nut, so that the adjusting pull rod drives the movable pipe to move through the adjusting hinge, the adjustable flow guide cone is made to move, and the area of an acid gas flow channel can be changed by changing the front-back position of the adjustable flow guide cone; the adjusting capacity of the acid gas spray gun on large and small working conditions is met, the flow speed of the acid gas under the low working condition can be increased, and the rotational flow strength of the acid gas and the mixing uniformity of the acid gas and air are guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to a wide load adjustable acid gas spray gun and belongs to the technical field of sulfur recovery. BACKGROUND

[0002] In the sulfur recovery device unit of petroleum refining, chemical production and coal deep processing, especially in the coal chemical industry and oil and gas field industry, due to the unstable sulfur content of raw materials, the acid gas volume will fluctuate greatly when treating low-sulfur or high-sulfur coal / oil. Under low-sulfur working conditions, the device is in long-term low-load operation, and there is a "big horse pulling a small cart" phenomenon, and even the device load is less than 20% of the design value. The burner will have low flow rate of acid gas and combustion air, and the mixture will be uneven, which will seriously affect the Claus reaction of the reaction furnace, the acid spray gun will appear backfire, and the head will have high-temperature ablation phenomenon, which will seriously affect the long-period stable operation of the device.

[0003] The reaction furnace of the sulfur recovery device is the key equipment of the sulfur recovery device, and 60% to 70% of the sulfur output is completed by the reaction furnace. The three key elements of the reaction furnace are the residence time of the furnace reaction flue gas, the furnace reaction temperature, and the turbulent mixing degree of the reaction components in the furnace. The acid gas spray gun of the burner is the key component in the key equipment of turbulent mixing. The mixing speed of acid gas and combustion air and the flue gas turbulence of the furnace itself are both dependent on the acid gas spray gun of the burner.

[0004] The traditional acid gas spray gun is usually designed to adjust the ratio to 3:1, and the maximum adjustable ratio is 5:1. However, in actual application, the acid gas spray gun is designed and manufactured according to the design value. When the device is running at low load, the flow area of the acid gas spray gun is fixed, the acid gas volume is greatly reduced, the gas flow kinetic energy and the swirling mixing intensity are greatly reduced, and the turbulent effect of the acid gas spray gun is seriously affected.

[0005] Therefore, we provide a wide load adjustable acid gas spray gun to solve the above problems. CONTENT OF THE UTILITY MODEL

[0006] To solve the above problems, the utility model provides a wide load adjustable acid gas spray gun to solve the above problems, and the specific technical scheme is:

[0007] The utility model provides a wide load adjustable type sour gas spray gun, including sour gas pipe, which is provided with fuel gas pipe, the sour gas pipe side end is connected with sour gas spray head, is provided with mobile pipe between sour gas pipe and fuel gas pipe, the mobile pipe side end is connected with adjustable guide cone, the fuel gas pipe side end is provided with fixed guide cone, the fuel gas pipe outer end is connected with fulcrum fixed clamp, the fulcrum fixed clamp side end is rotatably connected with adjusting hinge, the adjusting hinge side end is connected with adjusting pull rod, the sour gas pipe side end is connected with flange cover, the flange cover side end is connected with support frame, and the support frame side end is provided with adjusting nut.

[0008] Preferably, the outer end of the sour gas pipe is connected with an acid gas inlet pipe, the fuel gas pipe is located at the central axis position of the sour gas pipe, the side end of the fuel gas pipe is inserted into the flange cover, and the side end of the fuel gas pipe is connected with a fuel guide cone.

[0009] Preferably, the fuel guide cone is located in the fixed guide cone, a fuel channel is formed between the fuel guide cone and the fixed guide cone, the inside of the fuel guide cone is filled with refractory material, and the sour gas spray head, the mobile pipe and the adjustable guide cone form a sour gas channel.

[0010] Preferably, the adjustable guide cone is located at the outer end of the fixed guide cone, and an acid gas channel is formed therebetween, the side end of the adjusting hinge is rotatably connected with the mobile pipe, one end of the adjusting pull rod is slidably connected in the adjusting hinge, and the other end is slidably connected in the flange cover.

[0011] Preferably, the flange cover is externally provided with a packing gland, the adjusting pull rod passes through the packing gland on the flange cover, the side end of the packing gland is provided with a packing gland, the adjusting pull rod is located in the packing gland, the part of the adjusting pull rod extending out of the packing gland is a threaded screw rod, and the adjusting nut is threadedly connected at the outer end of the threaded screw rod.

[0012] Preferably, the outer end of the fuel gas pipe is connected with a small-load cyclone vane, the number of the cyclone vanes is greater than four, the outer end of the small-load cyclone vane is slidably connected with the inner wall of the mobile pipe.

[0013] Preferably, the outer end of the fuel gas pipe is connected with a small-load cyclone vane, the number of the cyclone vanes is greater than four, the outer end of the small-load cyclone vane is slidably connected with the inner wall of the mobile pipe.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. The wide load adjustable acid gas lance is provided with an adjusting pull rod and a moving pipe, the adjusting pull rod can be moved by adjusting the adjusting nut, the adjusting pull rod drives the moving pipe to move through the adjusting hinge, so that the adjustable flow cone is moved, the front and back positions of the adjustable flow cone are changed, the acid gas flow channel area is changed, the adjustment ability of the acid gas lance to the size of the working condition is met, the flow rate of the acid gas under the low working condition can be improved, the rotational flow intensity of the acid gas and the uniformity of the mixing with air are ensured, the mixing intensity of the acid gas and the combustion air can be improved, the sulfur recovery rate of the burner and the sulfur recovery device under the ultra-low load condition is stabilized, and the acid gas lance backfire ablation phenomenon under the low load can be effectively avoided.

[0016] 2. The wide load adjustable acid gas lance is provided with a packing box, the adjusting pull rod passes through the packing box on the flange cover, the adjusting pull rod and the packing box are sealed by packing, and the packing is pressed and sealed by the packing gland, so that the gas in the acid gas pipe can be prevented from leaking and overflowing through the gap between the adjusting pull rod and the flange cover, the sealing effect is good, and the safety of the device can be improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a whole structure schematic view of the utility model;

[0018] Figure 2 It is a support frame structure schematic view of the utility model;

[0019] Figure 3 It is a moving pipe structure schematic view of the utility model;

[0020] Figure 4 It is a support plate structure schematic view of the utility model;

[0021] Figure 5 It is a cross section structure schematic view of the utility model;

[0022] Figure 6 It is a Figure 5 Area A schematic view.

[0023] BRIEF DESCRIPTION OF DRAWINGS: 1, acid gas pipe; 2, fuel gas pipe; 3, acid gas nozzle; 4, moving pipe; 5, adjustable flow cone; 6, fixed flow cone; 7, fulcrum fixing clamp; 8, adjusting hinge; 9, adjusting pull rod; 10, flange cover; 11, support frame; 12, adjusting nut; 13, acid gas inlet pipe; 14, fuel flow cone; 15, packing box; 16, packing gland; 17, threaded screw; 18, large load rotational flow blade; 19, small load rotational flow blade; 20, support plate. DETAILED DESCRIPTION

[0024] The utility model will be further described in combination with the drawings.

[0025] Please refer to Figure 1 — Figure 6 , including acid gas pipe 1, acid gas pipe 1 outer end is connected with acid gas inlet pipe 13, through acid gas inlet pipe 13 to acid gas pipe 1 inside input acid gas, acid gas pipe 1 inside is provided with fuel gas pipe 2, fuel gas pipe 2 inside input combustion air, fuel gas pipe 2 is located in the central axis position of acid gas pipe 1, fuel gas pipe 2 side end is connected with fuel flow cone 14, acid gas pipe 1 side end is connected with acid gas spray head 3, acid gas pipe 1 and fuel gas pipe 2 between the setting has mobile pipe 4, mobile pipe 4 can be in acid gas spray head 3 mobile, mobile pipe 4 side end is connected with adjustable flow cone 5, adjustable flow cone 5 outer end adopts gradually expanding type cone structure, inside also adopts gradually expanding type cone hole structure, acid gas spray head 3 and mobile pipe 4, adjustable flow cone 5 between the acid gas passage is formed, acid gas pipe 1 inside acid gas can be from the acid gas passage spray.

[0026] Fuel gas pipe 2 side end is provided with fixed flow cone 6, fuel flow cone 14 is located in fixed flow cone 6, fuel flow cone 14 and fixed flow cone 6 between the fuel passage is formed, fuel gas pipe 2 inside combustion air from the fuel passage spray, fuel flow cone 14 inside adopts refractory material filling, in this way can guarantee the structural stability of fuel flow cone 14, adjustable flow cone 5 is located in the outer end of fixed flow cone 6, and the acid gas passage is formed between them, which can spray acid gas.

[0027] Fuel gas pipe 2 outer end is connected with fulcrum fixed clamp 7, fulcrum fixed clamp 7 side end is rotatably connected with adjusting hinge 8, fulcrum fixed clamp 7 is used to connect support adjusting hinge 8, adjusting hinge 8 side end is connected with adjusting pull rod 9, acid gas pipe 1 side end is connected with flange cover 10, flange cover 10 is used to seal the side end of acid gas pipe 1, fuel gas pipe 2 side end is inserted in flange cover 10, so as to fix fuel gas pipe 2, adjusting hinge 8 side end is rotatably connected with mobile pipe 4, adjusting pull rod 9 one end is slidably connected in adjusting hinge 8, the other end is slidably connected in flange cover 10, when pulling adjusting pull rod 9, it will be able to drive adjusting hinge 8 to rotate.

[0028] Mobile pipe 4 outer end is connected with large load rotational flow vane 18, the number of rotational flow vane is greater than four, large load rotational flow vane 18 outer end is slidably connected with acid gas spray head 3 inner wall, fuel gas pipe 2 outer end is connected with small load rotational flow vane 19, the number of rotational flow vane is greater than four, load rotational flow vane can change the flow state of fluid, make it produce rotation or disturbance, thereby increasing the affinity of fluid and vane, improve energy transfer efficiency, fuel gas pipe 2 outer end is connected with support plate 20, small load rotational flow vane 19, support plate 20 outer end are slidably connected with mobile pipe 4 inner wall, small load rotational flow vane 19, support plate 20 are all used to support mobile pipe 4, so that it can be axially adjusted and moved on fuel gas pipe 2.

[0029] The flange cover 10 is connected with a support frame 11 at the side end, the support frame 11 is provided with an adjusting nut 12 at the side end, the flange cover 10 is externally provided with a packing gland 15, the adjusting pull rod 9 passes through the packing gland 15 on the flange cover 10, the packing gland 15 is provided with a packing gland 16 at the side end, the adjusting pull rod 9 is located in the packing gland 16, the adjusting pull rod 9 and the packing gland 15 adopt packing sealing, and the packing is compressed and sealed through the packing gland 16, so that the gas in the acid gas pipe 1 can be prevented from leaking and overflowing through the gap between the adjusting pull rod 9 and the flange cover 10, the part of the adjusting pull rod 9 extending out of the packing gland 15 is a threaded screw rod 17, the adjusting nut 12 is threadedly connected to the outer end of the threaded screw rod 17, and rotating the adjusting nut 12 can act on the threaded screw rod 17, so that the adjusting pull rod 9 can be moved.

[0030] In use, the adjusting nut 12 and the threaded screw rod 17 are rotated to drive the adjusting pull rod 9 to move, the adjusting pull rod 9 pushes or pulls the adjusting hinge 8, under the action of the lever force, the adjusting hinge 8 pushes or pulls the moving pipe 4, so that the axial position between the adjustable flow cone 5 and the fixed flow cone 6 is changed, the acid gas flow channel area is adjusted, and the adjustment ability of the acid gas spray gun to large and small working conditions is met, for example, under the action of the adjusting hinge 8, the adjustable flow cone 5 is pushed to a position away from the acid gas spray head 3, the inner surface of the gradually expanding conical hole of the adjustable flow cone 5 is attached to the fixed flow cone 6, and the annular channel formed between the adjustable flow cone 5 and the acid gas spray head 3 can meet the operation of the acid gas under large flow working conditions; under the action of the adjusting hinge 8, the adjustable flow cone 5 is pulled to the acid gas spray head 3, the gradually expanding cone of the adjustable flow cone 5 blocks the inside of the acid gas spray head 3, and the annular channel formed between the gradually expanding conical hole of the adjustable flow cone 5 and the fixed flow cone 6 can meet the operation of the acid gas under small flow working conditions.

[0031] The technical principles of the utility model are described above in combination with specific embodiments. These descriptions are only for explaining the principles of the utility model, and cannot be interpreted as limiting the protection scope of the utility model in any way. Based on the explanations herein, other specific embodiments of the utility model can be conceived by those skilled in the art without creative labor, and these embodiments will fall within the protection scope of the claims of the utility model.

Claims

1. A wide load adjustable acid gas lance comprising an acid gas pipe (1), characterized in that: The acid gas pipe (1) is provided with a fuel gas pipe (2), the acid gas pipe (1) is connected with an acid gas nozzle (3) at the side end, the acid gas pipe (1) and the fuel gas pipe (2) are provided with a moving pipe (4), the moving pipe (4) is connected with an adjustable flow cone (5) at the side end, the fuel gas pipe (2) is provided with a fixed flow cone (6) at the side end, the fuel gas pipe (2) is connected with a fulcrum fixing clamp (7) at the outer end, the fulcrum fixing clamp (7) is rotatably connected with an adjusting hinge (8) at the side end, the adjusting hinge (8) is connected with an adjusting pull rod (9) at the side end, the acid gas pipe (1) is connected with a flange cover (10) at the side end, the flange cover (10) is connected with a support frame (11) at the side end, and the support frame (11) is provided with an adjusting nut (12) at the side end.

2. A wide load adjustable acid gas lance according to claim 1, characterized in that: The acid gas pipe (1) is connected with an acid gas inlet pipe (13) at the outer end, the fuel gas pipe (2) is located at the central axis position of the acid gas pipe (1), the fuel gas pipe (2) is inserted into the flange cover (10) at the side end, and the fuel gas pipe (2) is connected with a fuel flow cone (14) at the side end.

3. A wide load adjustable acid gas lance according to claim 2, characterized in that: The fuel flow cone (14) is located in the fixed flow cone (6), a fuel channel is formed between the fuel flow cone (14) and the fixed flow cone (6), the inside of the fuel flow cone (14) is filled with refractory material, and the acid gas nozzle (3), the moving pipe (4) and the adjustable flow cone (5) form an acid gas channel.

4. A wide load adjustable acid gas lance according to claim 1, characterized in that: The adjustable flow cone (5) is located at the outer end of the fixed flow cone (6), and an acid gas channel is formed therebetween, the adjusting hinge (8) is rotatably connected with the moving pipe (4) at the side end, one end of the adjusting pull rod (9) is slidably connected in the adjusting hinge (8), and the other end is slidably connected in the flange cover (10).

5. A wide load adjustable acid gas lance according to claim 1, characterized in that: The flange cover (10) is provided with a packing gland (15) outside, the adjusting pull rod (9) passes through the packing gland (15) on the flange cover (10), the packing gland (15) is provided with a packing gland (16) at the side end, the adjusting pull rod (9) is located in the packing gland (16), the part of the adjusting pull rod (9) extending out of the packing gland (15) is a threaded screw rod (17), and the adjusting nut (12) is threadedly connected at the outer end of the threaded screw rod (17).

6. A wide load adjustable acid gas lance according to claim 1, characterized in that: The moving pipe (4) is connected with a large-load rotational flow vane (18) at the outer end, the number of rotational flow vanes is greater than four, and the large-load rotational flow vane (18) is slidably connected with the inner wall of the acid gas nozzle (3) at the outer end.

7. A wide load adjustable acid gas lance according to claim 1, characterized in that: The fuel gas pipe (2) is connected with a small-load rotational flow vane (19) at the outer end, the number of rotational flow vanes is greater than four, the fuel gas pipe (2) is connected with a support plate (20) at the outer end, and the outer ends of the small-load rotational flow vane (19) and the support plate (20) are slidably connected with the inner wall of the moving pipe (4).

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