A multi-layer spray desulfurization slurry distribution device for a desulfurization tower

Abstract

The utility model provides a kind of desulfurization tower multilayer spray desulfurization slurry distribution device, it is related to spray desulfurization slurry distribution technical field, and it includes: device main body, the top of device main body is fixedly connected with liquid outlet pipe.This utility model in use, by setting alarm assembly on the surface of the liquid outlet pipe of distribution device, after the communication of slurry, the internal pressure of hollow shell is increased by the slurry flowing into hollow shell, the push plate drives the abutment to move backward until touching trigger switch, so that it timely feedbacks communication signal to device main body after force triggering, if internal blockage, leading to the internal pressure value of hollow shell is smaller, the push force of push plate is difficult to overcome the resilience of multiple springs, leading to device main body internal unable to receive feedback signal, personnel quickly learn the blockage condition of distributor and make adjustment, solve the problem that in background art, when distribution device is blocked, personnel cannot learn in time, leading to waste flue gas cannot be fully treated and discharged, and cause environmental pollution.

Description

Technical Field

[0001] This utility model relates to the field of spray desulfurization slurry distribution technology, and in particular to a multi-layer spray desulfurization slurry distribution device for desulfurization towers. Background Technology

[0002] Flue gas desulfurization and denitrification technology is a boiler flue gas purification technology applied to the chemical industry that generates nitrogen oxides and sulfur oxides. While the concentrations of SOx and NOx in the flue gas of thermal power plant boilers are not high, their total amounts are substantial. The large amounts of particulate matter, sulfides, and ammonia oxides in boiler flue gas are major sources of environmental pollution. Existing combined desulfurization and denitrification technologies include combinations of flue gas desulfurization and denitrification, and technologies that utilize adsorbents to simultaneously remove SOx and NOx, all of which achieve high removal efficiency.

[0003] In existing technologies, the treatment of waste gas from thermal power plants typically employs multi-layer spraying in desulfurization towers. This involves pouring prepared lime water into multiple pipes, which are then distributed through various devices. Multiple layers of water mist are sprayed within the desulfurization tower to react with and treat oxides and sulfur oxides in the waste gas. However, with prolonged use, lime particles in the lime water can easily clog the distributors. When some distributors become blocked, and personnel cannot detect this in time, the waste gas is not fully treated and discharged, causing environmental pollution. Utility Model Content

[0004] The purpose of this invention is to solve the problem in the existing technology that, during long-term use, lime particles in lime water can easily clog the distributor, causing some of the slurry distributor to become blocked without the personnel being able to detect it in time, resulting in some flue gas not being fully treated and discharged, causing environmental pollution. Therefore, a multi-layer spray desulfurization slurry distribution device for desulfurization towers is proposed.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a multi-layer spray desulfurization slurry distribution device for a desulfurization tower, comprising: a device body, wherein a liquid outlet pipe is fixedly connected to the top of the device body, and a liquid inlet pipe is fixedly connected to the bottom of the device body, and an alarm component is provided on the outer surface of the liquid outlet pipe; the alarm component includes a hollow shell, a rear cover is provided on the rear surface of the hollow shell, a mounting seat is provided at the center of the front surface of the rear cover, a trigger switch is provided at the center of the mounting seat, a push plate is slidably connected to the inner surface of the hollow shell, a plurality of springs are fixedly connected at equal intervals between the push plate and the rear cover, and a contact block is provided at the center of the rear surface of the push plate, the contact block being matched with the trigger switch.

[0006] Preferably, the outer surface of the back cover is symmetrically fixedly connected with connecting blocks, and bolts are provided on the inner surface of both connecting blocks.

[0007] Preferably, the outer surface of the hollow shell is symmetrically fixedly connected with fixing blocks, and the outer surfaces of the two bolts are respectively threadedly rotatably connected to the inner surfaces of the two fixing blocks.

[0008] Preferably, a piston is provided on the outer surface of the push plate, and the outer surface of the piston is in contact with the inner surface of the hollow shell.

[0009] Preferably, the rear surface of the push plate is fixedly connected with a plurality of fixing rods at equal intervals, and the fixing rods slide through the rear cover.

[0010] Preferably, an annular groove is formed on the front surface of the rear cover near the center, and a flexible cover is provided on the inner surface of the annular groove.

[0011] Preferably, the outer surface of the liquid outlet pipe is fixedly connected to a second pipe body, and the front surface of the hollow shell is fixedly connected to a first pipe body, with the inner surface of the first pipe body and the outer surface of the second pipe body being threadedly rotatably connected.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows: 1. In this utility model, during use, an alarm component is installed on the surface of the liquid outlet pipe of the distribution device. After the slurry is connected, the slurry flowing into the hollow shell increases the internal pressure of the hollow shell, causing the push plate to move the contact block backward until it touches the trigger switch. After being triggered by the force, the contact block promptly sends a connection signal back to the main body of the device. If there is an internal blockage, the internal pressure value of the hollow shell is too small, and the pushing force of the push plate is difficult to overcome the rebound force of multiple springs, resulting in the main body of the device failing to receive the feedback signal. This allows personnel to quickly know the blockage status of the distributor and make adjustments. This solves the problem in the prior art where, when the distribution device is blocked, personnel cannot know in time, resulting in insufficient treatment and discharge of waste gas, causing environmental pollution.

[0013] 2. In this utility model, during use, an annular groove is opened on the surface of the back cover, and a flexible cover is set on the inner surface of the back cover outside the trigger switch to prevent the piston from aging and breaking, which would cause the slurry to leak and affect the use of the trigger switch. This makes it highly practical. Attached Figure Description

[0014] Figure 1 A perspective view of a multi-layer spray desulfurization slurry distribution device for a desulfurization tower is provided for this utility model; Figure 2 This utility model provides a schematic diagram of the alarm component structure of a multi-layer spray desulfurization slurry distribution device for a desulfurization tower. Figure 3 This utility model provides a partial structural schematic diagram of a multi-layer spray desulfurization slurry distribution device for a desulfurization tower. Figure 4This utility model presents a schematic diagram of the main structure of a multi-layer spray desulfurization slurry distribution device for a desulfurization tower.

[0015] Legend: 1. Main body of the device; 2. Outlet pipe; 3. Inlet pipe; 4. Alarm component; 401. Hollow shell; 402. First tube; 403. Push plate; 404. Piston; 405. Rear cover; 406. Flexible cover; 407. Fixing rod; 408. Spring; 409. Connecting block; 410. Bolt; 411. Fixing block; 412. Annular groove; 413. Mounting base; 414. Trigger switch; 415. Contact block; 5. Second tube. Detailed Implementation

[0016] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0017] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0018] Example 1: As Figures 1-4 As shown, this utility model provides a multi-layer spray desulfurization slurry distribution device for a desulfurization tower, comprising: a device body 1, with an outlet pipe 2 fixedly connected to the top of the device body 1 and an inlet pipe 3 fixedly connected to the bottom of the device body 1; an alarm component 4 is provided on the outer surface of the outlet pipe 2; the alarm component 4 includes a hollow shell 401, a rear cover 405 is provided on the rear surface of the hollow shell 401, a mounting base 413 is provided at the center of the front surface of the rear cover 405, a trigger switch 414 is provided at the center of the mounting base 413, a push plate 403 is slidably connected to the inner surface of the hollow shell 401, and multiple springs 408 are fixedly connected at equal intervals between the push plate 403 and the rear cover 405. A contact block 415 is provided at the center of the rear surface of the plate 403. The contact block 415 is matched with the trigger switch 414. Connecting blocks 409 are symmetrically fixedly connected to the outer surface of the rear cover 405. Bolts 410 are provided on the inner surface of the two connecting blocks 409. Fixing blocks 411 are symmetrically fixedly connected to the outer surface of the hollow shell 401. The outer surfaces of the two bolts 410 are respectively threaded and rotatably connected to the inner surfaces of the two fixing blocks 411. A piston 404 is provided on the outer surface of the push plate 403. The outer surface of the piston 404 is in contact with the inner surface of the hollow shell 401. Multiple fixing rods 407 are fixedly connected at equal intervals on the rear surface of the push plate 403. The fixing rods 407 slide through the rear cover 405.

[0019] The overall effect of Embodiment 1 is that, when the desulfurization tower multi-layer spray desulfurization slurry distribution device is used, the lime water slurry is distributed and connected when it is transported to the main body 1 of the device through the inlet pipe 3, so that the slurry is introduced into the spray pipe along the outlet pipe 2 for use. At the same time, the slurry in the outlet pipe 2 will flow into the hollow shell 401, increasing its internal pressure. The push plate 403 drives the piston 404 to move backward in the hollow shell 401, squeezing multiple springs 408, causing them to deform and contract until the contact block 415 squeezes and abuts against the trigger switch 414 set on the surface of the mounting base 413, so that it is subjected to force. When triggered, the connection signal is promptly fed back to the main body 1 of the device. After the main body 1 of the device is connected, if there is internal blockage, the internal pressure value will be small, and the backward pushing force of the push plate 403 will be unable to overcome the rebound force of multiple springs 408. The contact block 415 and the trigger switch 414 will always be in a separated state, so that the main body 1 of the device cannot receive the feedback signal. This allows personnel to quickly know the blockage status of the distributor and make adjustments. It also avoids the situation where some distribution devices are blocked and personnel do not know in time, resulting in the waste gas not being fully treated and discharged, causing environmental pollution.

[0020] Example 2: As Figures 1-4 As shown, an annular groove 412 is provided on the front surface of the rear cover 405 near the center. A flexible cover 406 is provided on the inner surface of the annular groove 412. The outer surface of the liquid outlet pipe 2 is fixedly connected to the second pipe body 5. The front surface of the hollow shell 401 is fixedly connected to the first pipe body 402. The inner surface of the first pipe body 402 is threadedly rotatably connected to the outer surface of the second pipe body 5.

[0021] The overall effect of Embodiment 2 is that, during use, by opening an annular groove 412 on the surface of the rear cover 405 and setting a flexible cover 406 on its inner surface outside the trigger switch 414, the piston 404 is prevented from aging and causing slurry leakage, which would affect the use of the trigger switch 414. By fixing multiple fixing rods 407 on the rear surface of the push plate 403, it is easy to limit the push plate 403 when it moves back and forth, preventing its position from shifting, which would increase the friction coefficient between the push plate 403 and the inner wall of the hollow shell 401 and affect its use. It is highly practical.

[0022] Working principle: During use, connecting blocks 409 are symmetrically fixed to the outer surface of the rear cover 405. The connecting blocks 409 are fixed to the fixing blocks 411 fixed to the outer side of the hollow shell 401 by bolts 410. The front surface of the hollow shell 401 is fixedly connected to the first pipe body 402 and the second pipe body 5 fixedly connected to the surface of the outlet pipe 2 by threads, which facilitates disassembly. During spray desulfurization, when the lime water slurry is transported to the main body 1 of the device through the inlet pipe 3, it is distributed and connected, so that the slurry is introduced into the spray pipe along the outlet pipe 2 for use. At the same time, the slurry in the outlet pipe 2 will flow into the hollow shell 401, increasing its internal pressure. The push plate 403 drives the piston 404 to move backward in the hollow shell 401, squeezing multiple springs 408, causing them to deform and contract until the contact block 415 presses against the trigger switch 414 set on the surface of the mounting base 413. When the contact block 415 is triggered, the connection signal is promptly fed back to the main body 1 of the device. After the circuit is cleared, if there is internal blockage, resulting in a low internal pressure value, the backward thrust of the push plate 403 will be unable to overcome the rebound force of the multiple springs 408. The contact block 415 and the trigger switch 414 will always be in a separated state, resulting in the device body 1 failing to receive feedback signals. This allows personnel to quickly know the blockage status of the distributor and make adjustments. It also prevents the waste gas from being incompletely treated and discharged when some distribution devices are blocked, thus avoiding environmental pollution. By opening an annular groove 412 on the surface of the rear cover 405 and setting a flexible cover 406 on its inner surface outside the trigger switch 414, it is possible to prevent the piston 404 from aging and causing slurry leakage, which would affect the use of the trigger switch 414. By fixing multiple fixing rods 407 on the rear surface of the push plate 403, it is possible to limit the movement of the push plate 403 back and forth, preventing its position from shifting and causing an increase in the friction coefficient between the push plate 403 and the inner wall of the hollow shell 401, which would affect its use. This makes it highly practical.

[0023] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A multi-layer spray desulfurization slurry distribution device for a desulfurization tower, characterized in that, include: The device body (1) has an outlet pipe (2) fixedly connected to the top of the device body (1) and an inlet pipe (3) fixedly connected to the bottom of the device body (1). An alarm component (4) is provided on the outer surface of the outlet pipe (2). An alarm component (4) includes a hollow housing (401), a rear cover (405) is provided on the rear surface of the hollow housing (401), a mounting base (413) is provided at the center of the front surface of the rear cover (405), a trigger switch (414) is provided at the center of the mounting base (413), a push plate (403) is slidably connected to the inner surface of the hollow housing (401), a plurality of springs (408) are fixedly connected at equal intervals between the push plate (403) and the rear cover (405), and a contact block (415) is provided at the center of the rear surface of the push plate (403), and the contact block (415) is matched with the trigger switch (414).

2. The desulfurization tower multi-layer spray desulfurization slurry distribution device according to claim 1, characterized in that: The outer surface of the rear cover (405) is symmetrically fixed with connecting blocks (409), and bolts (410) are provided on the inner surfaces of the two connecting blocks (409).

3. The desulfurization tower multi-layer spray desulfurization slurry distribution device according to claim 2, characterized in that: The outer surface of the hollow shell (401) is symmetrically fixed with fixing blocks (411), and the outer surfaces of the two bolts (410) are respectively threadedly rotatably connected to the inner surfaces of the two fixing blocks (411).

4. The desulfurization tower multi-layer spray desulfurization slurry distribution device according to claim 3, characterized in that: A piston (404) is provided on the outer surface of the push plate (403), and the outer surface of the piston (404) is in contact with the inner surface of the hollow shell (401).

5. The desulfurization tower multi-layer spray desulfurization slurry distribution device according to claim 4, characterized in that: The rear surface of the push plate (403) is fixedly connected with multiple fixing rods (407) at equal intervals, and the fixing rods (407) slide through the rear cover (405).

6. The desulfurization tower multi-layer spray desulfurization slurry distribution device according to claim 5, characterized in that: The front surface of the rear cover (405) is provided with an annular groove (412) near the center, and a flexible cover (406) is provided on the inner surface of the annular groove (412).

7. The desulfurization tower multi-layer spray desulfurization slurry distribution device according to claim 6, characterized in that: The outer surface of the liquid outlet pipe (2) is fixedly connected to the second pipe body (5), and the front surface of the hollow shell (401) is fixedly connected to the first pipe body (402). The inner surface of the first pipe body (402) is threadedly rotatably connected to the outer surface of the second pipe body (5).

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