Liquid ammonia gasification and flue gas mixing uniformity adjusting device

Abstract

The application discloses a liquid ammonia gasification and flue gas mixing uniformity adjusting device, and relates to the field of industrial flue gas purification. The device comprises a tower body, a fan is arranged on one side of the tower body, and an input pipe is connected to the output end of the fan. The two spray heads swing left and right, and the tower body inlet and outlet cavities are filled with ammonia gas. When the driven bevel gear is driven to rotate, the rotation of the driven bevel gear is assisted by the rotation shaft, the driving gear is driven to rotate, and the two universal plates are simultaneously rotated. Under the action of the universal plate, when the driven gear rotates, the spray head installed on the top of the universal plate is driven to rotate, the two spray heads swing at the same speed and in the same direction, the fan is controlled to operate, the gasified liquid ammonia is output to the spray head direction through the input pipe, the spray head sprays ammonia gas into the flue gas during the process that the flue gas enters the tower body cavity from the tower body output end, the ammonia gas and the flue gas are fully mixed, the full mixing efficiency of the ammonia gas and the flue gas is improved, and the flue gas desulfurization efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of industrial flue gas purification technology, and in particular to a device for regulating the uniformity of liquid ammonia vaporization and flue gas mixing. Background Technology

[0002] In the field of industrial flue gas purification (such as desulfurization and denitrification processes), liquid ammonia is often used as a reducing agent or absorbent due to its high reactivity and economy. After being gasified into ammonia, it reacts chemically with pollutants in the flue gas (such as sulfur dioxide and nitrogen oxides) to remove the pollutants. The thoroughness of liquid ammonia gasification and the uniformity of the mixing of ammonia and flue gas directly determine the reaction efficiency, pollutant removal rate and by-product stability.

[0003] The vaporized ammonia gas is delivered to the nozzles via a pipe using a blower. The nozzles are controlled to swing left and right, allowing the ammonia gas to be sprayed more thoroughly into the flue gas, mixing it completely with the flue gas. If the nozzles become clogged, they can be quickly disassembled and reassembled by rotating the locking mechanism.

[0004] Existing liquid ammonia vaporization and flue gas mixing uniformity adjustment devices lack the ability to swing left and right when ammonia is sprayed from the nozzle, thus failing to completely cover the flue gas inlet pipe. This results in insufficient mixing of ammonia and flue gas, leading to incomplete and inadequate subsequent flue gas treatment. Furthermore, the process of replacing clogged nozzles is cumbersome and time-consuming, impacting flue gas treatment efficiency. Therefore, a liquid ammonia vaporization and flue gas mixing uniformity adjustment device is proposed. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the problems existing in the prior art, this utility model provides a device for regulating the uniformity of liquid ammonia gasification and flue gas mixing.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model is implemented through the following technical solution: a liquid ammonia gasification and flue gas mixing uniformity adjustment device, including a tower body, a fan is provided on one side of the tower body, the output end of the fan is connected to an input pipe, an adjustment mechanism adapted to the input pipe is provided in the inner cavity of the tower body, and a snap-fit ​​mechanism is provided inside the adjustment mechanism.

[0009] The adjustment mechanism includes a hollow plate fixedly connected to the inner surface of the tower body. A universal joint adapted to the input pipe is symmetrically arranged on the top of the hollow plate. A nozzle is arranged on the top of the universal joint. A driven gear is sleeved on the outer surface of the universal joint. A rotating shaft is movably installed on the side of the hollow plate opposite to the inner surface of the tower body through a bearing. A driving gear adapted to the driven gear is arranged on the outer surface of the rotating shaft. A driven bevel gear is installed at one end of the rotating shaft extending to the top of the tower body.

[0010] The snap-fit ​​mechanism includes an adapter cylinder installed at the bottom of the nozzle. Multiple L-shaped snap-fit ​​blocks are installed circumferentially at the bottom of the nozzle. A sealing gasket is provided on the side of the nozzle opposite to the universal joint. L-shaped slots for matching the L-shaped snap-fit ​​blocks are distributed circumferentially at the top of the universal joint.

[0011] As a preferred embodiment of the liquid ammonia gasification and flue gas mixing uniformity adjustment device of this utility model, one end of the input pipe passes through the tower body and is connected to the hollow plate, the universal disk has a liquid guiding hole inside, the universal disk is connected to the input pipe through the liquid guiding hole, the driven gear meshes with the driving gear, and the nozzle is connected to the liquid guiding hole of the universal disk.

[0012] As a preferred embodiment of the liquid ammonia gasification and flue gas mixing uniformity adjustment device of this utility model, a motor is installed on the top of the tower body, the output end of the motor is provided with a driving bevel gear adapted to the driven bevel gear, and a protective cover is provided on the outside of the motor.

[0013] As a preferred embodiment of the liquid ammonia gasification and flue gas mixing uniformity adjustment device of this utility model, the driving bevel gear meshes with the driven bevel gear, the output direction of the two nozzles is consistent with the direction of flue gas flow, and the rotating shaft is located at the center of the inner cavity of the tower body output end.

[0014] As a preferred embodiment of the liquid ammonia gasification and flue gas mixing uniformity adjustment device of the present invention, the L-shaped card block is located outside the adapter cylinder, the adapter cylinder is adapted to the inner surface of the universal disk, the top of the sealing gasket has an L-shaped hole with the same number as the L-shaped slot, and the L-shaped card block is movably installed inside the L-shaped slot through the L-shaped hole.

[0015] As a preferred embodiment of the liquid ammonia vaporization and flue gas mixing uniformity adjustment device of this utility model, the sealing gasket has a plurality of semi-circular protrusions distributed around its bottom circumference, and the universal joint has an arc-shaped limiting groove distributed around its top circumference to fit the semi-circular protrusions. The semi-circular protrusions are engaged inside the arc-shaped limiting grooves. The outer surface of the L-shaped locking block has symmetrically arranged limiting protrusions, and the inner surface of the L-shaped locking groove has an arc-shaped locking groove to fit the limiting protrusions. The limiting protrusions are movably engaged inside the arc-shaped locking grooves.

[0016] (III) Beneficial Effects

[0017] This invention provides a device for regulating the uniformity of liquid ammonia vaporization and flue gas mixing. It has the following features:

[0018] Beneficial effects:

[0019] 1. Through the adjustment mechanism, the two nozzles swing left and right, filling the inner cavity of the tower body's inlet and outlet with ammonia gas. When the driven bevel gear is driven to rotate, the driving gear is driven to rotate through the assistance of the rotating shaft, thereby rotating the two universal joints simultaneously. Under the action of the universal joints, the nozzles installed on the top of the universal joints rotate as the driven gear rotates, making the two nozzles swing at the same speed and in the same direction. This controls the operation of the fan, outputting the vaporized liquid ammonia through the input pipe towards the nozzles. As the flue gas enters the inner cavity of the tower body from the outlet end, the nozzles spray ammonia gas into the flue gas, ensuring thorough mixing and improving the mixing efficiency of ammonia gas and flue gas, thereby improving the desulfurization efficiency of the flue gas.

[0020] 2. The snap-fit ​​mechanism facilitates the quick replacement of clogged nozzles. Manually rotate the nozzle clockwise to position the L-shaped locking block in the vertical slot of the L-shaped groove. Pull the nozzle upwards and remove the L-shaped locking block from the L-shaped groove. Remove the sealing gasket from the top of the universal joint. Replace the nozzle with a new one, replacing the sealing gasket as well. Insert the L-shaped locking block at the bottom of the nozzle into the corresponding L-shaped groove. Apply rotational force to the nozzle to rotate the L-shaped locking block to the arc-shaped groove position in the L-shaped groove, causing the limiting protrusion to engage in the arc-shaped groove. This mechanism allows for quick nozzle replacement, preventing irreversible damage to flue gas desulfurization caused by nozzle blockage. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1This is a schematic diagram of the overall structure of this utility model.

[0023] Figure 2 This is a schematic diagram of the installation position of the adjustment mechanism of this utility model.

[0024] Figure 3 This is a partial exploded view of the adjustment mechanism of this utility model.

[0025] Figure 4 This is an exploded schematic diagram of the snap-fit ​​mechanism of this utility model.

[0026] Figure 5 This is a partially exploded cross-sectional view of the snap-fit ​​mechanism of this utility model.

[0027] In the diagram, 1. Tower body; 2. Adjustment mechanism; 201. Hollow plate; 202. Universal disc; 203. Driven gear; 204. Nozzle; 205. Driven gear; 206. Rotating shaft; 207. Driven bevel gear; 208. Driven bevel gear; 209. Motor; 3. Snap-fit ​​mechanism; 301. Adapter cylinder; 302. L-shaped locking block; 303. Sealing gasket; 304. Semi-circular protrusion; 305. Limiting protrusion; 306. L-shaped slot; 4. Fan; 5. Input pipe. Detailed Implementation

[0028] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0029] Example 1

[0030] Reference Figure 1 , Figure 2 and Figure 3 This is the first embodiment of the present invention. This embodiment provides a liquid ammonia vaporization and flue gas mixing uniformity adjustment device, including a tower body 1, a fan 4 is provided on one side of the tower body 1, the output end of the fan 4 is connected to an input pipe 5, and an adjustment mechanism 2 adapted to the input pipe 5 is provided in the inner cavity of the tower body 1. A snap-fit ​​mechanism 3 is provided inside the adjustment mechanism 2.

[0031] The adjustment mechanism 2 includes a hollow plate 201 fixedly connected to the inner surface of the tower body 1. A universal disk 202 adapted to the input pipe 5 is symmetrically arranged on the top of the hollow plate 201. A nozzle 204 is arranged on the top of the universal disk 202. A driven gear 203 is sleeved on the outer surface of the universal disk 202. A rotating shaft 206 is movably installed on the side of the hollow plate 201 opposite to the inner surface of the tower body 1 through a bearing. A driving gear 205 adapted to the driven gear 203 is arranged on the outer surface of the rotating shaft 206. A driven bevel gear 207 is installed at one end of the rotating shaft 206 extending to the top of the tower body 1.

[0032] Specifically, one end of the input pipe 5 passes through the tower body 1 and is connected to the hollow plate 201. The universal disk 202 has a liquid guiding hole inside, and the universal disk 202 is connected to the input pipe 5 through the liquid guiding hole. The driven gear 203 meshes with the driving gear 205. The nozzle 204 is connected to the liquid guiding hole of the universal disk 202. Under the action of the driving gear 205, the two universal disks 202 rotate in the same direction at the same time, and the driving gear 205 is controlled to rotate back and forth, so that the two nozzles 204 swing left and right, and spray the ammonia gas delivered by the input pipe 5 outward through the nozzles 204, so that the ammonia gas mixes with the flue gas.

[0033] Specifically, a motor 209 is installed on the top of the tower body 1. The output end of the motor 209 is equipped with a driving bevel gear 208 that is adapted to the driven bevel gear 207. A protective cover is provided on the outside of the motor 209. Under the action of the motor 209, with the assistance of the driving bevel gear 208, a certain rotational force is provided to the driven bevel gear 207, so that the driven bevel gear 207 drives the driving gear 205 to rotate through the rotating shaft 206.

[0034] Specifically, the driving bevel gear 208 meshes with the driven bevel gear 207, the output direction of the two nozzles 204 is consistent with the direction of flue gas flow, and the rotating shaft 206 is located at the center of the inner cavity of the output end of the tower body 1. Under the action of the nozzles 204, ammonia gas is sprayed into the flowing flue gas, so that the sprayed ammonia gas is fully mixed with the smoke, thereby improving the efficiency of subsequent desulfurization treatment of the smoke.

[0035] Furthermore, the motor 209 is controlled to operate. The output of the motor 209 drives the driving bevel gear 208 to rotate, which in turn drives the driven bevel gear 207 to rotate. The driven bevel gear 207 drives the rotating shaft 206 to rotate at the top of the tower body 1 and the hollow plate 201, thereby driving the driving gear 205 to rotate. Under the action of the driving gear 205, the driving gear 205 drives the two driven gears 203 to rotate simultaneously. With the assistance of the universal joint 202, the driven gears 203 cause the top of the universal joint 202 to rotate, and the bottom... In the stationary state, the top of the universal joint 202 drives the nozzle 204 to rotate. When the two driven gears 203 are driven to rotate simultaneously, the two nozzles 204 rotate in the same direction at the same speed. By controlling the forward and reverse rotation of the motor 209, the principle is the same as above, so that the two nozzles 204 swing left and right on the top of the corresponding universal joint 202. Then, the blower 4 is controlled to run, and the vaporized liquid ammonia is transported to the nozzle 204 through the input pipe 5. Through the action of the nozzle 204, the ammonia gas is sprayed into the flue gas flowing into the inner cavity of the tower body 1.

[0036] Example 2

[0037] Reference Figure 3 , Figure 4 and Figure 5This is the second embodiment of the present invention. This embodiment is based on the previous embodiment. The snap-fit ​​mechanism 3 includes an adapter cylinder 301 installed at the bottom of the nozzle 204. Multiple L-shaped snap-fit ​​blocks 302 are installed circumferentially at the bottom of the nozzle 204. A sealing gasket 303 is provided on the side of the nozzle 204 opposite to the universal disk 202. L-shaped slots 306 adapted to the L-shaped snap-fit ​​blocks 302 are distributed circumferentially at the top of the universal disk 202.

[0038] Specifically, the L-shaped locking block 302 is located outside the adapter cylinder 301, which is adapted to the inner surface of the universal disk 202. The top of the sealing gasket 303 has the same number of L-shaped holes as the L-shaped slots 306. The L-shaped locking block 302 is movably installed inside the L-shaped slots 306 through the L-shaped holes. Under the action of the sealing gasket 303, after the nozzle 204 and the universal disk 202 are connected, the connection is sealed. The L-shaped locking block 302 is inserted into the corresponding rotating shaft 206, and a rotational force is applied to the nozzle 204 to make the L-shaped locking block 302 lock into the L-shaped slots 306, thus fixing the nozzle 204 to the top of the universal disk 202.

[0039] Specifically, the sealing gasket 303 has multiple semi-circular protrusions 304 distributed around its bottom circumference, and the universal joint 202 has arc-shaped limiting grooves distributed around its top circumference to fit the semi-circular protrusions 304. The semi-circular protrusions 304 are engaged inside the arc-shaped limiting grooves. The outer surface of the L-shaped locking block 302 has symmetrically arranged limiting protrusions 305. The inner surface of the L-shaped slot 306 has an arc-shaped slot to fit the limiting protrusions 305. The limiting protrusions 305 are movably engaged inside the arc-shaped slots. The semi-circular protrusions 304 are engaged into the corresponding arc-shaped limiting grooves, and the L-shaped holes on the sealing gasket 303 are aligned with the L-shaped slots 306. The L-shaped locking block 302 drives the limiting protrusions 305 to rotate in the L-shaped slots 306, so that the two limiting protrusions 305 are engaged into the corresponding arc-shaped slots respectively, and the L-shaped locking block 302 is fixed in the L-shaped slots 306.

[0040] Next, manually rotate the nozzle 204 clockwise. The nozzle 204 drives several L-shaped locking blocks 302 at the bottom to rotate simultaneously. The L-shaped locking blocks 302 drive the corresponding limiting protrusions 305 to move out of the corresponding arc-shaped slots. Rotate the L-shaped locking blocks 302 to the vertical slot position of the corresponding L-shaped slots 306. Manually move the nozzle 204 upward to pull the several L-shaped locking blocks 302 out of the corresponding L-shaped slots 306. After completely removing the nozzle 204, remove the sealing gasket 303 from the top of the universal joint 202, replace it with a new nozzle 204, and connect the sealing gasket 303. 03 Replace all parts at once. Place the new sealing gasket 303 on top of the universal joint 202, and insert the semi-circular protrusion 304 into the corresponding arc-shaped limiting groove on the top of the universal joint 202. Insert the adapter cylinder 301 at the bottom of the nozzle 204 into the universal joint 202, so that the L-shaped locking block 302 is inserted into the corresponding L-shaped locking groove 306. Rotate the nozzle 204 counterclockwise. The nozzle 204 drives multiple L-shaped locking blocks 302 to rotate. The L-shaped locking blocks 302 drive the corresponding limiting protrusion 305 to lock into the corresponding arc-shaped locking groove. Fix the nozzle 204 on top of the universal joint 202. The replacement is now complete.

[0041] Working principle: The device is connected to an external power controller via a wiring harness. The tower body 1 is a pre-existing structure, identical to existing publicly disclosed designs. The output end of tower body 1 is connected to the smoke outlet of another device. At this time, the control motor 209 operates, and its output end drives the driving bevel gear 208 to rotate. The driving bevel gear 208 drives the driven bevel gear 207 to rotate, which in turn drives the rotating shaft 206 to rotate at the top of tower body 1 and hollow plate 201. This, in turn, drives the driving gear 205 to rotate. Under the action of the driving gear 205, the driving gear 205 drives two driven gears 203 to rotate simultaneously. The driven gears 203 rotate at high speeds. With the assistance of the universal joint 202, the top of the universal joint 202 rotates while the bottom remains stationary. The top of the universal joint 202 drives the nozzle 204 to rotate. When the two driven gears 203 are driven to rotate simultaneously, the two nozzles 204 rotate in the same direction at the same speed. By controlling the forward and reverse rotation of the motor 209, the same principle applies, causing the two nozzles 204 to swing left and right on the corresponding top of the universal joint 202. Then, the blower 4 is controlled to run, conveying the vaporized liquid ammonia through the input pipe 5 towards the nozzles 204. Through the action of the nozzles 204, the ammonia gas is sprayed into the flue gas flowing into the inner cavity of the tower body 1. The flue gas mixed with ammonia enters the inner cavity of the tower body 1. After a series of processes, the fluid flows out from the output end at the bottom of the tower body 1 to the next processing flow. During prolonged use, if the nozzle 204 becomes clogged, manually rotate the nozzle 204 clockwise. The nozzle 204 will cause several L-shaped locking blocks 302 at the bottom to rotate simultaneously. These L-shaped locking blocks 302 will cause their corresponding limiting protrusions 305 to move out of their corresponding arc-shaped slots. Rotate the L-shaped locking blocks 302 to the vertical slot position of their corresponding L-shaped slots 306. Manually move the nozzle 204 upwards to pull out the L-shaped locking blocks 302 from their corresponding L-shaped slots 306. After completely removing the nozzle 204, remove the sealing gasket 303 from the universal joint 20. 2. Remove the top part and replace it with a new nozzle 204, along with the sealing gasket 303. Place the new sealing gasket 303 on top of the universal joint 202 and insert the semi-circular protrusion 304 into the corresponding arc-shaped limiting groove on the top of the universal joint 202. Insert the adapter cylinder 301 at the bottom of the nozzle 204 into the universal joint 202, so that the L-shaped locking block 302 is inserted into the corresponding L-shaped locking groove 306. Rotate the nozzle 204 counterclockwise. The nozzle 204 drives multiple L-shaped locking blocks 302 to rotate. The L-shaped locking blocks 302 drive the corresponding limiting protrusion 305 to lock into the corresponding arc-shaped locking groove. Fix the nozzle 204 on top of the universal joint 202. The replacement is now complete.

[0042] It should be noted that in this paper, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

Claims

1. A device for regulating the uniformity of liquid ammonia vaporization and flue gas mixing, comprising a tower body (1), characterized in that: A fan (4) is provided on one side of the tower body (1), and an input pipe (5) is connected to the output end of the fan (4). An adjustment mechanism (2) adapted to the input pipe (5) is provided in the inner cavity of the tower body (1), and a snap-fit ​​mechanism (3) is provided inside the adjustment mechanism (2). The adjustment mechanism (2) includes a hollow plate (201) fixedly connected to the inner surface of the tower body (1). A universal disk (202) adapted to the input pipe (5) is symmetrically arranged on the top of the hollow plate (201). A nozzle (204) is arranged on the top of the universal disk (202). A driven gear (203) is sleeved on the outer surface of the universal disk (202). A rotating shaft (206) is movably installed on the side of the hollow plate (201) opposite to the inner surface of the tower body (1) through a bearing. A driving gear (205) adapted to the driven gear (203) is arranged on the outer surface of the rotating shaft (206). A driven bevel gear (207) is installed at one end of the rotating shaft (206) extending to the top of the tower body (1). The snap-fit ​​mechanism (3) includes an adapter cylinder (301) installed at the bottom of the nozzle (204). Multiple L-shaped snap-fit ​​blocks (302) are installed circumferentially at the bottom of the nozzle (204). A sealing gasket (303) is provided on the side of the nozzle (204) opposite to the universal disk (202). An L-shaped slot (306) for matching the L-shaped snap-fit ​​blocks (302) is provided circumferentially at the top of the universal disk (202).

2. The liquid ammonia vaporization and flue gas mixing uniformity adjustment device according to claim 1, characterized in that: One end of the input pipe (5) passes through the tower body (1) and is connected to the hollow plate (201). The universal disk (202) has a liquid guiding hole inside. The universal disk (202) is connected to the input pipe (5) through the liquid guiding hole. The driven gear (203) meshes with the driving gear (205). The nozzle (204) is connected to the liquid guiding hole of the universal disk (202).

3. The liquid ammonia vaporization and flue gas mixing uniformity adjustment device according to claim 2, characterized in that: A motor (209) is installed on the top of the tower body (1). The output end of the motor (209) is provided with a driving bevel gear (208) that is adapted to the driven bevel gear (207). A protective cover is provided on the outside of the motor (209).

4. The liquid ammonia vaporization and flue gas mixing uniformity adjustment device according to claim 3, characterized in that: The active bevel gear (208) meshes with the driven bevel gear (207), the output direction of the two nozzles (204) is consistent with the direction of flue gas flow, and the rotating shaft (206) is located at the center of the inner cavity of the output end of the tower body (1).

5. The liquid ammonia vaporization and flue gas mixing uniformity adjustment device according to claim 4, characterized in that: The L-shaped locking block (302) is located outside the adapter cylinder (301). The adapter cylinder (301) is adapted to the inner surface of the universal disk (202). The top of the sealing gasket (303) has the same number of L-shaped holes as the L-shaped slots (306). The L-shaped locking block (302) is movably installed inside the L-shaped slots (306) through the L-shaped holes.

6. The liquid ammonia vaporization and flue gas mixing uniformity adjustment device according to claim 5, characterized in that: The sealing gasket (303) has a plurality of semi-circular protrusions (304) distributed around its bottom circumference. The universal wheel (202) has an arc-shaped limiting groove distributed around its top circumference to fit the semi-circular protrusions (304). The semi-circular protrusions (304) are engaged inside the arc-shaped limiting grooves. The outer surface of the L-shaped locking block (302) has symmetrically arranged limiting protrusions (305). The inner surface of the L-shaped locking groove (306) has an arc-shaped locking groove to fit the limiting protrusions (305). The limiting protrusions (305) are movably engaged inside the arc-shaped locking grooves.

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