Wide-load adjustable acid gas burner throat

Abstract

The utility model provides a wide-load adjustable throat of an acid gas burner, and relates to the technical field of chemical production. The wide-load adjustable acid gas burner throat comprises a swirler mounting flange and a plurality of hinge plates, the swirler mounting flange is fixedly connected with a supporting frame, the supporting frame is rotationally connected with a lead screw nut, the lead screw nut is in threaded connection with a first adjusting pull rod, the swirler mounting flange is fixedly connected with a stuffing box, and the stuffing box is in threaded connection with a second adjusting pull rod. And the stuffing box is filled with a sealing packing. According to the wide-load adjustable acid gas burner throat, a plurality of hinged plates are arranged circumferentially to form an approximately circular throat, one end of each hinged plate is hinged and fixed to a hinge seat through a hinge, each fan-shaped arc plate is synchronously pushed and pulled through a supporting frame, the angle between each fan-shaped arc plate and the axis is adjusted, and the angle between each fan-shaped arc plate and the axis is adjusted. The sectional area of the throat formed by the fan-shaped arc plates is changed so as to adapt to the flow speed of a medium passing through the throat, and the purpose that the sectional area of the throat is conveniently adjusted is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a burner throat, concretely is a wide load adjustable type sour gas burner throat and belongs to the chemical production technical field. BACKGROUND

[0002] Sour gas burner is a kind of common combustion equipment, is widely used in the heating process in industrial field, such as steel, petrochemical, chemical, textile, metallurgy etc., its main function is to make sour gas and air mix evenly, provide a stable flame that impurity and hydrogen sulfide can all be completely combusted, to maintain the normal operation of combustion furnace, the throat of sour gas burner is a key component, the design of throat directly influences the performance of burner, including combustion efficiency, flame stability, heat transfer efficiency etc.

[0003] The throat of sour gas burner in prior art can improve combustion efficiency, enhance flame stability, improve the adjusting performance of burner, improve energy utilization rate and reduce pollutant emission, but the throat does not change with the flow size of sour gas and air, throat injection area is designed according to maximum medium flow, if the flow of sour gas and combustion air mixture becomes smaller in actual operation of burner, the medium flow through the throat of sour gas burner is too low, there is uneven mixing of sour gas and air, which influences flame stability, throat flow rate is too low, near throat, backfire phenomenon occurs, i.e. sour gas burns inside throat, burner lance, burner throat, sour gas spray gun and cyclone, high-temperature ablation phenomenon occurs, which seriously influences long-period stable operation of burner and entire device, therefore, the wide load adjustable type sour gas burner throat is provided to solve the above problems. CONTENT OF UTILITY MODEL

[0004] To solve the above problems, the utility model provides a wide load adjustable type sour gas burner throat to solve the above problems, and the specific technical scheme is as follows:

[0005] A wide load adjustable type sour gas burner throat, including cyclone mounting flange, a plurality of hinged plates, the cyclone mounting flange is fixedly connected with support frame, the support frame is rotatably connected with lead screw nut, the lead screw nut is threadedly connected with adjusting pull rod one, the cyclone mounting flange is fixedly connected with packing gland, the packing gland is filled with sealing packing inside, the packing gland is threadedly connected with packing gland, the adjusting pull rod one is threadedly connected with pull rod joint, the pull rod joint is hinged with pull rod support one, the pull rod support one is fixedly connected with guide cylinder, the guide cylinder is slidably connected with sour gas pipe, the guide cylinder is fixedly connected with a plurality of pull rod supports two, a plurality of pull rod supports two are all hinged with adjusting pull rod two, the adjusting pull rod two is hinged with hinge, the hinge is hinged with hinge seat, the hinge seat is fixedly connected with mixing cone section, and a plurality of hinged plates form throat.

[0006] Preferably, the adjusting pull rod one is in sliding connection with the packing gland, and the adjusting pull rod one is in sliding connection with the sealing packing.

[0007] Preferably, the adjusting pull rod one is in sliding connection with the packing gland, and the adjusting pull rod one is in sliding connection with the sealing packing.

[0008] Preferably, the hinged plate is fixedly connected with the throat, and a plurality of the pull rod supports two are arranged equidistantly and concentrically outside the guide cylinder.

[0009] Preferably, the hinged plate is in the shape of a fan-shaped arc plate, and the material of the hinged plate is a fire-resistant and high-temperature-resistant material.

[0010] Preferably, the support frame is fixedly connected with the cyclone mounting flange through screws, the support frame is composed of two mutually symmetrical clamping pieces, and the material of the sealing packing is acid- and alkali-resistant fiber.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] 1. The wide-load-adjustable acid gas burner throat is formed by circumferentially arranging a plurality of hinged plates to form a nearly circular throat, one end of the hinged plate is hingedly fixed through a hinge and a hinge seat, each fan-shaped arc plate is synchronously pushed and pulled through a support frame, the angle of the fan-shaped arc plate with the axis is adjusted, the throat cross-sectional area formed by the plurality of fan-shaped arc plates is changed, the flow rate of the medium passing through the throat is adapted, and the purpose of conveniently adjusting the throat cross-sectional area of the device is achieved.

[0013] 2. The wide-load-adjustable acid gas burner throat is matched by the packing gland, the sealing packing and the packing gland, when liquid or gas leaks between the support frame and the packing gland in the device, the packing gland is rotated to screw the packing gland and the packing gland, and then the sealing packing is extruded to the gap between the packing gland and the support frame, the gap between the packing gland and the support frame is blocked, and the purpose of high-efficiency leakage prevention of the device is achieved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a right view structure cutaway view of the utility model;

[0015] Figure 2 It is a whole structure schematic view of the utility model;

[0016] Figure 3 It is a right view structure cutaway view of the utility model Figure 1 It is an enlarged schematic view of structure A.

[0017] BRIEF DESCRIPTION OF DRAWINGS:1, screw nut; 2, support frame; 3, packing gland; 4, sealing packing; 5, packing box; 6, adjusting pull rod one; 7, pull rod joint; 8, pull rod support one; 9, guide cylinder; 10, pull rod support two; 11, adjusting pull rod two; 12, mixing cone section; 13, hinge; 14, hinge seat; 15, fan-shaped arc plate; 16, throat; 17, acid gas pipe; 18, cyclone mounting flange. DETAILED DESCRIPTION

[0018] The utility model will be further described with reference to the drawings.

[0019] Please refer to Figure 1 、 Figure 2 、 Figure 3 , including cyclone mounting flange 18, multiple hinged plates 15, cyclone mounting flange 18 fixedly connected with support frame 2, support frame 2 rotatably connected with screw nut 1, screw nut 1 is screwed with adjusting pull rod one 6, cyclone mounting flange 18 fixedly connected with packing box 5, packing box 5 is filled with sealing packing 4 inside, packing box 5 is screwed with packing gland 3, adjusting pull rod one 6 is screwed with pull rod joint 7, pull rod joint 7 is hinged with pull rod support one 8, pull rod support one 8 is fixedly connected with guide cylinder 9, guide cylinder 9 is slidably connected with acid gas pipe 17, guide cylinder 9 is fixedly connected with multiple pull rod support two 10, multiple pull rod support two 10 are all hinged with adjusting pull rod two 11, adjusting pull rod two 11 is hinged with hinge 13, hinge 13 is hinged with hinge seat 14, hinge seat 14 is fixedly connected with mixing cone section 12, multiple hinged plates 15 form throat 16, adjusting pull rod one 6 is slidably connected with packing gland 3, adjusting pull rod one 6 is slidably connected with sealing packing 4, adjusting pull rod one 6 is slidably connected with packing box 5, adjusting pull rod one 6 is slidably connected with cyclone mounting flange 18, hinged plate 15 is fixedly connected with throat 16, multiple pull rod support two 10 are equidistantly concentrically arranged at the outside of guide cylinder 9, the shape of hinged plate 15 is fan-shaped arc plate, the material of hinged plate 15 adopts fire-resistant and high-temperature-resistant material, support frame 2 is fixedly connected with cyclone mounting flange 18 by screw, support frame 2 adopts two mutually symmetrical clamping pieces, the material of sealing packing 4 adopts acid and alkali resistant fiber.

[0020] The support frame 2 is composed of two mutually symmetrical clamping pieces, clamps the screw nut 1, and forms a rotating connection relationship with the screw nut 1. A plurality of hinged plates 15 are circumferentially arranged to form a nearly circular throat 16. One end of the hinged plate 15 is hingedly fixed through a hinge 13 and a hinge seat 14. The support frame 2 synchronously pushes and pulls each piece of the fan-shaped arc plate to adjust the angle of the fan-shaped arc plate with the axis and change the throat cross-sectional area formed by the plurality of fan-shaped arc plates to adapt to the flow rate of the medium passing through the throat, thereby achieving the purpose of conveniently adjusting the throat cross-sectional area of the device. When the device leaks liquid or gas through the gap between the support frame 2 and the packing gland 5, the packing gland 3 is rotated to screw the packing gland 3 and the packing gland 5, and then the sealing packing 4 is extruded between the packing gland 5 and the support frame 2 to block the gap between the packing gland 5 and the support frame 2, thereby achieving the purpose of high-efficiency leakage prevention of the device.

[0021] In use, when the medium flow through the throat 16 is small, the screw nut 1 is rotated clockwise, the screw nut 1 drives the adjusting pull rod one 6 to move outward, simultaneously pulls the pull rod support one 8, the guide cylinder 9, and the pull rod support two 10, and simultaneously drives the plurality of adjusting pull rods two 11 to move, thereby changing the angle of the hinged plate 15 and increasing the cross-sectional area of the throat 16. When the medium flow through the throat 16 is large, the adjusting pull rod one 6 is counterclockwise rotated to increase the cross-sectional area of the throat 16. Pressure detection ports are arranged before and after the throat 16. The medium flow through the throat 16 is determined according to the pressure drop value of the medium passing through the throat 16. Under normal circumstances, the pressure before the throat 16 is greater than the pressure after the throat 16 by 1-3 kpag. When the pressure difference between before and after the throat 16 is greater than 3 kpa, the adjusting pull rod one 6 is counterclockwise rotated to increase the cross-sectional area of the throat 16. Conversely, when the pressure difference between before and after the throat 16 is less than 1 kpag, the adjusting pull rod one 6 is clockwise rotated to decrease the cross-sectional area of the throat 16. During the operation of the burner, the pressure difference between before and after the throat 16 is always maintained at 1-3 kpag, the flow rate of the acid gas and the air is maintained, the uniformity of the mixture of the acid gas and the air is ensured, the burner is safely and stably operated, the air flow adjustment ratio can reach 10:1, the adaptability of the sulfur device and the service life of the burner itself are greatly improved, and the device has the purposes of high-efficiency leakage prevention.

[0022] The technical principles of the present application are described above in combination with specific embodiments. These descriptions are only for explaining the principles of the present application, and cannot be interpreted as limiting the protection scope of the present application in any way. Based on the explanations herein, other specific embodiments of the present application can be conceived by those skilled in the art without creative efforts, and these embodiments will all fall within the protection scope of the claims of the present application.

Claims

1. A wide load adjustable sour gas burner throat comprising a swirler mounting flange (18), a plurality of hinged plates (15), characterized in that: The cyclone mounting flange (18) is fixedly connected with a support frame (2), the support frame (2) is rotatably connected with a lead screw nut (1), the lead screw nut (1) is threadedly connected with an adjusting pull rod one (6), the cyclone mounting flange (18) is fixedly connected with a stuffing box (5), the stuffing box (5) is filled with a sealing packing (4) inside, the stuffing box (5) is threadedly connected with a stuffing gland (3), the adjusting pull rod one (6) is threadedly connected with a pull rod joint (7), the pull rod joint (7) is hingedly connected with a pull rod support one (8), the pull rod support one (8) is fixedly connected with a guide cylinder (9), the guide cylinder (9) is slidably connected with an acid gas pipe (17), the guide cylinder (9) is fixedly connected with a plurality of pull rod supports two (10), the plurality of pull rod supports two (10) are hingedly connected with adjusting pull rod two (11), the adjusting pull rod two (11) is hingedly connected with a hinge (13), the hinge (13) is hingedly connected with a hinge seat (14), the hinge seat (14) is fixedly connected with a mixing cone section (12), a plurality of hinged plates (15) form a throat (16).

2. A wide load adjustable throat for an acid gas combustor according to claim 1, wherein: The adjusting pull rod one (6) is slidably connected with the stuffing gland (3), and the adjusting pull rod one (6) is slidably connected with the sealing packing (4).

3. A wide load adjustable throat for an acid gas combustor according to claim 1, wherein: The adjusting pull rod one (6) is slidably connected with the stuffing box (5), and the adjusting pull rod one (6) is slidably connected with the cyclone mounting flange (18).

4. A wide load adjustable acid gas burner throat according to claim 1, wherein: The hinged plate (15) is fixedly connected with the throat (16), and the plurality of pull rod supports two (10) are arranged equidistantly and concentrically outside the guide cylinder (9).

5. A wide load adjustable acid gas burner throat according to claim 1, wherein: The hinged plate (15) is in the shape of a fan-shaped arc plate, and the material of the hinged plate (15) is a fire-resistant and high-temperature-resistant material.

6. A wide load adjustable acid gas burner throat according to claim 1, wherein: The support frame (2) is fixedly connected with the cyclone mounting flange (18) by screws, the support frame (2) is composed of two mutually symmetrical clamping pieces, and the material of the sealing packing (4) is acid and alkali resistant fiber.

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