Spray head for desulfurizing tower

Abstract

The spray head comprises a tower body, a liquid inlet pipe is arranged in the tower body, the spray head further comprises a spray pipe and a driving ring, the open end of the spray pipe is rotatably communicated with the liquid inlet pipe, the closed end of the spray pipe penetrates through and is rotatably connected with the peripheral wall of the tower body, and a plurality of groups of liquid spray holes are formed in the peripheral wall of the spray pipe in the tower body at intervals. A bevel gear is sleeved outside the spraying pipe outside the tower body, and the bevel gear and the outer wall of the tower body are connected with a torsional spring; the driving ring is connected to the exterior of the tower body in a circumferential sliding mode, the driving ring covers the multiple bevel gears through an annular groove formed in an inner ring, a set of first teeth are arranged on the bottom face of the annular groove between every two adjacent bevel gears, and when the first teeth rotate to the lower sides of the adjacent bevel gears along with the driving ring, the first teeth are meshed with the bevel gears on the upper sides; and a driving piece for driving the driving ring to rotate is arranged on the tower body. According to the utility model, the problem that sulfide sprayed by the spray head fixedly arranged in the desulfurizing tower is difficult to capture in a large range is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of desulfurization towers, in particular to a nozzle for a desulfurization tower. Background Art

[0002] A desulfurization tower is a tower-type device used to remove sulfides (primarily sulfur dioxide, SO2) from flue gas. The sulfur dioxide in the flue gas comes into contact and mixes with a desulfurizer (such as limestone slurry) inside the tower. The desulfurizer is sprayed into the flue gas through nozzles, where it reacts chemically with the sulfides in the flue gas, transferring them from the flue gas to the desulfurizer.

[0003] The nozzles installed in the desulfurization tower are fixed in position and always spray the desulfurizer vertically downward. It is difficult for the desulfurizer to fully contact the upward-moving flue gas. The contact range is small, and the desulfurizer cannot capture the sulfide in the flue gas on a large scale, resulting in poor flue gas desulfurization effect. Summary of the Invention

[0004] The utility model solves the problem that sulfides sprayed from a fixed nozzle in a desulfurization tower are difficult to capture sulfides in flue gas on a large scale, and provides a nozzle for a desulfurization tower, which can improve the capture efficiency and capture effect of the desulfurizer on flue gas.

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

[0006] A spray head for a desulfurization tower comprises a tower body, wherein a liquid inlet pipe is provided in the tower body, and further comprises a spray pipe and a driving ring, wherein the spray pipes are multiple and arranged in a ring array, the open end of the spray pipe is rotatably connected to the liquid inlet pipe, the closed end of the spray pipe passes through and is rotatably connected to the peripheral wall of the tower body, a plurality of groups of liquid spray holes are arranged at intervals on the peripheral wall of the spray pipe in the tower body, the spray pipe outside the tower body is covered with a bevel gear, and the bevel gear and the outer wall of the tower body are connected by a torsion spring; the driving ring is circumferentially slidably connected to the tower body, and the driving ring is covered outside the plurality of bevel gears through an annular groove opened on the inner ring, the outer end of the bottom surface of the annular groove is high and the inner end is low, and a group of teeth are provided on the bottom surface of the annular groove between each two adjacent bevel gears, and when the tooth rotates to the lower side of the adjacent bevel gear with the driving ring, the tooth engages the upper bevel gear; the tower body is provided with a driving member that drives the driving ring to rotate.

[0007] Furthermore, the liquid inlet pipe is an L-shaped pipe body, the vertical section of the liquid inlet pipe is located on the central axis of the tower body and the free end is closed, the open ends of multiple spray pipes are connected to the vertical section of the liquid inlet pipe; the horizontal section of the liquid inlet pipe passes through the peripheral wall of the tower body.

[0008] Furthermore, each torsion spring is sleeved outside the corresponding spray pipe; and the multiple spray holes on each group of spray holes are arranged in a ring array along the central axis of the spray pipe.

[0009] Furthermore, the adjacent bevel gears on one to two sides of each group of teeth have the same spacing.

[0010] Furthermore, a bearing ring is provided outside the tower body, which is a hollow annular body with an open inner ring. The bearing ring is covered outside the driving ring, and the inner end is fixedly connected to the outer wall of the tower body; the upper and lower surfaces of the driving ring slide in contact with the upper and lower inner surfaces of the bearing ring.

[0011] Furthermore, the driving member includes a second tooth and a motor. The outer ring surface of the driving ring is provided with a plurality of second teeth that are in sliding contact with the inner wall of the carrying ring. The outer wall of the carrying ring is connected to a carrying plate, and a motor with the output end facing downward is fixed on the carrying plate. The output end of the motor is connected to a driving gear, and one end of the driving gear passes through the circumferential wall of the carrying ring and engages with the second tooth on the driving ring.

[0012] Through the above technical solution, the beneficial effects of the utility model are:

[0013] When the desulfurizer sprayed out by the spray pipe of the utility model contacts the flue gas, the driving part drives the driving ring to rotate, and the driving ring can drive the spray pipe to rotate forward or reverse. The rotating desulfurizer can contact more with the upward-moving flue gas, and thus the desulfurizer can capture more sulfides in the flue gas. The forward and reverse rotation of the spray pipe can make the desulfurizer more evenly dispersed in the tower body when sprayed, and further enable the desulfurizer to contact more with the flue gas; it can improve the capture efficiency and capture effect of the desulfurizer in the flue gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a sectional front view of the utility model;

[0015] Figure 2 yes Figure 1 Cross-sectional view at AA in the middle;

[0016] Figure 3 It is a structural schematic diagram of the liquid inlet pipe connected to the spray pipe of the utility model.

[0017] The numbers in the accompanying drawings are: 1, tower body, 2, liquid inlet pipe, 3, spray pipe, 4, drive ring, 5, spray hole, 6, bevel gear, 7, torsion spring, 8, annular groove, 9, tooth one, 10, rotary joint one, 11, rotary joint two, 12, load-bearing ring, 13, sealing plate, 14, tooth two, 15, motor, 16, drive gear, 17, load-bearing plate. DETAILED DESCRIPTION

[0018] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0019] like Figures 1 to 3As shown, a nozzle for a desulfurization tower includes a tower body 1, a liquid inlet pipe 2 is provided in the tower body 1, a spray pipe 3 and a drive ring 4, the spray pipe 3 is a circular tube, and there are multiple spray pipes 3, which are arranged in a ring array along the central axis of the tower body 1. The open end of the spray pipe 3 is connected to the liquid inlet pipe 2 through a rotary joint 10, and the closed end of the spray pipe 3 passes through and is connected to the peripheral wall of the tower body 1 through a rotary joint 2 11. A plurality of groups of liquid spray holes 5 are provided on the peripheral wall of the spray pipe 3 in the tower body 1 at intervals, and the spray pipe 3 outside the tower body 1 is covered with a bevel gear 6, and the bevel gear 6 and the outer wall of the tower body 1 are connected by a torsion spring 7; the drive The ring 4 is a circular ring body, and the drive ring 4 is circumferentially slidably connected to the outside of the tower body 1. The drive ring 4 is covered by a plurality of bevel gears 6 through an annular groove 8 opened on the inner ring. The opening of the annular groove 8 faces the outer wall of the tower body 1. The outer end of the bottom surface of the annular groove 8 is high and the inner end is low. A group of teeth 9 is provided on the bottom surface of the annular groove 8 between each two adjacent bevel gears 6. The multiple teeth 9 on each group of teeth 9 are arranged along the annular direction of the bottom surface of the annular groove 8. When the teeth 9 rotate to the lower side of the adjacent bevel gear 6 with the drive ring 4, the teeth 9 engage the bevel gear 6 on the upper side; the tower body 1 is provided with a driving member for driving the drive ring 4 to rotate.

[0020] The liquid inlet pipe 2 is an L-shaped pipe body. The vertical section of the liquid inlet pipe 2 is located on the central axis of the tower body 1 and the free end is closed. The open ends of multiple spray pipes 3 are connected to the vertical section of the liquid inlet pipe 2; the horizontal section of the liquid inlet pipe 2 passes through the peripheral wall of the tower body 1.

[0021] Each of the torsion springs 7 is sleeved on the outside of the corresponding spray pipe 3 ; the multiple spray holes 5 on each group of spray holes 5 are arranged in a ring array along the central axis of the spray pipe 3 .

[0022] Each set of teeth 9 has the same spacing to the adjacent bevel gears 6 on both sides.

[0023] A carrying ring 12 is provided outside the tower body 1. The carrying ring 12 is a hollow circular ring with an opening in the inner ring. The carrying ring 12 covers the outside of the driving ring 4, and the inner end is fixedly connected to the outer wall of the tower body 1; the upper and lower surfaces of the driving ring 4 slide in contact with the upper and lower inner surfaces of the carrying ring 12; the lower end opening of the carrying ring 12 is blocked by a sealing plate 13.

[0024] The driving member includes a second tooth 14 and a motor 15. The outer ring surface of the driving ring 4 is provided with a plurality of second teeth 14 that are in sliding contact with the inner wall of the carrying ring 12. The outer wall of the carrying ring 12 is connected to a carrying plate 17, and a motor 15 with the output end facing downward is fixed on the carrying plate. The output end of the motor 15 is connected to a driving gear 16, and one end of the driving gear 16 passes through the peripheral wall of the carrying ring 12 and engages with the second tooth 14 on the driving ring 4.

[0025] When in use, the desulfurizer in the liquid inlet pipe 2 enters the spray pipe 3, and the desulfurizer in the spray pipe 3 is sprayed into the tower body 1 through each group of liquid spray holes 5, and contacts the flue gas flowing from bottom to top in the tower body 1;

[0026] The motor 15 drives the driving gear 16 to rotate, and the driving gear 16 engages the tooth 2 14 on the driving ring 4 to drive the driving ring 4 to rotate. When the driving ring 4 rotates, it drives each set of teeth 1 9 to rotate. When the teeth 1 9 rotate with the driving ring 4 to the lower side of the adjacent bevel gear 6, the teeth 1 9 engage the bevel gear 6 on the upper side, so that the bevel gear 6 drives the connected spray pipe 3 to rotate, and the torsion spring 7 is twisted. When the spray pipe 3 rotates, the desulfurizer sprayed from the spray pipe 3 rotates with the spray pipe 3, and the rotating desulfurizer can more The desulfurizer can capture more sulfides in the flue gas, and after each set of teeth 9 moves with the drive ring 4 and disengages from the meshed bevel gear 6, the spray pipe 3 rotates in the opposite direction to return to the initial position under the restoring force of the torsion spring 7, so that the desulfurizer rotates in the opposite direction when it is sprayed out through the spray hole on the spray pipe 3. The forward and reverse rotation of the spray pipe 3 can make the desulfurizer more evenly dispersed in the tower body 1 when it is sprayed, and further enable the desulfurizer to contact more with the flue gas.

[0027] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the above embodiments. Without violating the spirit of the present invention, that is, within the scope of disclosure, any equivalent or equivalent deformation or replacement of the technical solution of the utility model shall fall within the scope of protection of the present invention.

Claims

1. A nozzle for a desulfurization tower, comprising a tower body (1), wherein a liquid inlet pipe (2) is provided in the tower body (1), characterized in that: The invention also includes a spray pipe (3) and a drive ring (4), wherein the spray pipe (3) is provided in a plurality and arranged in a ring array, the open end of the spray pipe (3) is connected to the liquid inlet pipe (2) by rotation, the closed end of the spray pipe (3) passes through and is connected to the peripheral wall of the tower body (1) by rotation, a plurality of groups of liquid spray holes (5) are provided on the peripheral wall of the spray pipe (3) inside the tower body (1), the spray pipe (3) outside the tower body (1) is provided with a bevel gear (6) on its outer sleeve, and a torsion spring (7) is connected to the outer wall of the tower body (1); the peripheral wall of the drive ring (4) is provided with a bevel gear (6) on its outer sleeve, and the bevel gear (6) and the outer wall of the tower body (1) are connected by a torsion spring (7 ... The tower body (1) is connected to the outside of the tower body (1) by sliding, and the driving ring (4) is covered by the outside of the plurality of bevel gears (6) through the annular groove (8) opened on the inner ring. The bottom surface of the annular groove (8) is high at the outer end and low at the inner end. A group of teeth (9) is provided on the bottom surface of the annular groove (8) between each two adjacent bevel gears (6). When the teeth (9) rotate to the lower side of the adjacent bevel gear (6) with the driving ring (4), the teeth (9) mesh with the bevel gear (6) on the upper side. The tower body (1) is provided with a driving member for driving the driving ring (4) to rotate.

2. A nozzle for a desulfurization tower according to claim 1, characterized in that: The liquid inlet pipe (2) is an L-shaped pipe body, the vertical section of the liquid inlet pipe (2) is located on the central axis of the tower body (1) and the free end is closed, the open ends of the plurality of spray pipes (3) are connected to the vertical section of the liquid inlet pipe (2); the horizontal section of the liquid inlet pipe (2) passes through the peripheral wall of the tower body (1).

3. A nozzle for a desulfurization tower according to claim 1, characterized in that: Each torsion spring (7) is sleeved outside the corresponding spray pipe (3); the multiple spray holes (5) on each group of spray holes (5) are arranged in a ring array along the central axis of the spray pipe (3).

4. A nozzle for a desulfurization tower according to claim 1, characterized in that: Each set of teeth (9) has the same spacing from the adjacent bevel gears (6) on both sides.

5. A nozzle for a desulfurization tower according to claim 1, characterized in that: A carrying ring (12) is provided outside the tower body (1), and the carrying ring (12) is a hollow annular body with an open inner ring. The carrying ring (12) is covered outside the driving ring (4), and the inner end is fixedly connected to the outer wall of the tower body (1); the upper and lower surfaces of the driving ring (4) are in sliding contact with the upper and lower inner surfaces of the carrying ring (12).

6. A nozzle for a desulfurization tower according to claim 5, characterized in that: The driving member includes a second tooth (14) and a motor (15). The outer ring surface of the driving ring (4) is provided with a plurality of second teeth (14) that are in sliding contact with the inner wall of the carrying ring (12). The outer wall of the carrying ring (12) is connected to a carrying plate (17). The motor (15) with the output end facing downward is fixed on the carrying plate. The output end of the motor (15) is connected to a driving gear (16). One end of the driving gear (16) passes through the peripheral wall of the carrying ring (12) and engages with the second tooth (14) on the driving ring (4).

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