Flushing device and flushing system for inlet flue of desulfurizing absorption tower

Abstract

The utility model relates to the technical field of absorption tower flushing equipment, in particular to a flushing device and a flushing system for an inlet flue of a desulfurizing absorption tower. The flushing device comprises a driving mechanism arranged on the smoke wall of the inlet flue; the mounting frame is arranged on the flue wall of the inlet flue, a flushing water pipe is arranged on the mounting frame, the flushing water pipe is connected with the driving mechanism, and a plurality of nozzles are arranged on the flushing water pipe; the rotating mechanism is connected with the driving mechanism and the flushing water pipe, and the driving mechanism drives the rotating mechanism to rotate and drives the flushing water pipe to rotate by a preset angle; and the limiting mechanism is arranged on the mounting frame and used for limiting the rotation range of the flushing water pipe. The rotating mechanism is used for driving the flushing water pipe to rotate by the preset angle, and then the nozzles on the flushing water pipe are driven to rotate to be aligned with the gypsum accumulation position, so that the accumulated gypsum is flushed away, and the conditions of flue corrosion, flue gas flow speed acceleration and flue abrasion aggravation which are easily caused by gypsum accumulation are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of absorption tower flushing equipment, and particularly relates to a flushing device and a flushing system for the inlet flue of a desulfurization absorption tower. Background Art

[0002] A desulfurization absorption tower is a device used for industrial waste gas treatment, mainly used to remove sulfur-containing gases in the waste gas, such as sulfur dioxide (SO2), etc., to reduce environmental pollution. The shape of the desulfurization tower is usually tower-shaped, and its working principle is to use desulfurization absorbent to remove sulfur-containing gases in the waste gas through chemical reactions. The material of the desulfurization tower has developed from granite in the early stage to fiberglass, stainless steel, and high molecular composite materials with the progress of technology.

[0003] The desulfurization process of the desulfurization tower is divided into different types such as dry desulfurization and wet desulfurization. In the wet desulfurization technology, the spray tower is the most widely used one. It realizes the gas-liquid mass transfer process by the countercurrent contact of the sprayed liquid and the rising flue gas, so as to achieve the desulfurization effect. The operating procedures of the desulfurization tower include preparation work, normal startup, normal shutdown, etc., and need to be carried out strictly according to the procedures to ensure desulfurization efficiency and equipment safety.

[0004] In the existing wet desulfurization technology, the accumulation of gypsum in the desulfurization inlet flue is a common problem. The accumulation of gypsum easily leads to problems such as flue corrosion, increased flue gas velocity, and aggravated flue wear. Summary of the Utility Model

[0005] Therefore, the technical problem to be solved by the utility model is to overcome the problem that the accumulation of gypsum in the desulfurization inlet flue in the prior art is a common problem, and the accumulation of gypsum easily leads to flue corrosion, increased flue gas velocity, and aggravated flue wear, so as to provide a flushing device and a flushing system for the inlet flue of a desulfurization absorption tower.

[0006] To solve the above technical problem, the utility model provides a flushing device for the inlet flue of a desulfurization absorption tower, including: a driving mechanism, which is arranged on the flue wall of the inlet flue; a mounting frame, the mounting frame is arranged on the flue wall of the inlet flue, a flushing water pipe is arranged on the mounting frame, the flushing water pipe is connected with the driving mechanism, and a plurality of nozzles are arranged on the flushing water pipe; a rotating mechanism, which is connected with the driving mechanism and the flushing water pipe, the driving mechanism drives the rotating mechanism to rotate, and drives the flushing water pipe to rotate a predetermined angle; a limiting mechanism, which is arranged on the mounting frame, and the limiting mechanism is used to limit the rotation range of the flushing water pipe.

[0007] Further, the predetermined angle of rotation of the flushing water pipe is 10° - 45°.

[0008] Further, the rotating mechanism includes a driving rod and an elongated slot. The elongated slot is provided at the end of the flushing water pipe. One end of the driving rod is connected to the driving mechanism, and the other end is inserted into the elongated slot. The driving mechanism drives the driving rod to slide in the elongated slot and drives the flushing water pipe to rotate by a predetermined angle.

[0009] Further, the limiting mechanism includes a limiting rod and two fixing rods. The two fixing rods are provided on the mounting bracket. One end of the limiting rod is connected to the flushing water pipe, and the other end of the limiting rod is located between the two fixing rods.

[0010] Further, the driving mechanism includes a fixed bracket and a driving motor. The fixed bracket is provided on the wall of the flue, and the driving motor is provided on the fixed bracket and is connected to the driving rod.

[0011] Further, a pulse valve is provided at the water inlet end of the flushing water pipe.

[0012] Further, it further includes a water inlet pipe, and the water inlet pipe is connected to the flushing water pipe through a sealed bearing.

[0013] Further, it further includes a hoop. The hoop is provided on the mounting bracket, and the sealed bearing is provided inside the hoop.

[0014] Further, the mounting bracket includes a triangular bracket and a support bracket. The triangular bracket is provided on the wall of the flue, the support bracket is provided on the triangular bracket, and the flushing water pipe is provided on the support bracket.

[0015] The present utility model further provides a flue washing system for the inlet of a desulfurization absorption tower, including the above-mentioned flue washing device for the inlet of a desulfurization absorption tower.

[0016] The technical solution of the present utility model has the following advantages:

[0017] 1. The flue washing device for the inlet of a desulfurization absorption tower provided by the present utility model includes: a driving mechanism provided on the wall of the inlet flue; a mounting bracket provided on the wall of the inlet flue, a flushing water pipe is provided on the mounting bracket, the flushing water pipe is connected to the driving mechanism, and a plurality of nozzles are provided on the flushing water pipe; a rotating mechanism connected to the driving mechanism and the flushing water pipe, the driving mechanism drives the rotating mechanism to rotate and drives the flushing water pipe to rotate by a predetermined angle; a limiting mechanism provided on the mounting bracket, and the limiting mechanism is used to limit the rotation range of the flushing water pipe.

[0018] By providing a driving mechanism on the inlet flue of the desulfurization absorption tower, the driving mechanism can drive the rotating mechanism to rotate, and the rotating mechanism drives the flushing water pipe to rotate by a predetermined angle, thereby driving the nozzle on the flushing water pipe to rotate and aiming at the position where gypsum accumulates, so as to wash away the accumulated gypsum, and thus avoid the situation that the accumulated gypsum is likely to cause flue corrosion, increased flue gas flow rate, and aggravated flue wear. Among them, the limiting mechanism can limit the rotation angle of the flushing water pipe to ensure that the rotation position of the flushing water pipe is at the position where gypsum accumulates.

[0019] 2. The flue inlet flushing device of the desulfurization absorption tower provided by the present utility model includes: a driving mechanism. The rotating mechanism includes a driving rod and a waist-shaped groove. The waist-shaped groove is provided at the end of the flushing water pipe. One end of the driving rod is connected to the driving mechanism, and the other end is inserted into the waist-shaped groove. The driving mechanism drives the driving rod to slide in the waist-shaped groove and drives the flushing water pipe to rotate by a predetermined angle. Through the setting of the driving rod, the connection with the driving mechanism is realized, and the driving mechanism drives the driving rod to rotate, so that the driving rod moves in the waist-shaped groove, and then the predetermined angle of the flushing water pipe is adjusted, so that the flushing water pipe and the nozzle are in the best position for flushing the accumulated gypsum.

[0020] 3. The flue inlet flushing device of the desulfurization absorption tower provided by the present utility model includes: a driving mechanism. The limiting mechanism includes a limiting rod and two fixing rods. The two fixing rods are provided on the mounting rack. One end of the limiting rod is connected to the flushing water pipe, and the other end of the limiting rod is located between the two fixing rods.

[0021] Through the setting of the limiting rod and the two fixing rods, that is, when the flushing water pipe rotates, the limiting rod rotates together with the flushing water pipe, and the rotation range of the limiting rod is between the two fixing rods, so that the rotation range of the flushing water pipe can be limited.

[0022] The utility model content is provided to introduce the selection of concepts in a simplified form, which will be further described in the specific implementation manners below. The utility model content is not intended to identify the important features or essential features of the present disclosure, nor is it intended to limit the scope of the present disclosure. Brief Description of the Drawings

[0023] In order to more clearly illustrate the specific implementation manners of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for the specific implementation manners or the description of the prior art. Obviously, the following drawings are some implementation manners of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0024] Figure 1Structural schematic diagram of the flue duct flushing device at the inlet of the desulfurization absorption tower provided by the present utility model;

[0025] Figure 2 Structural schematic diagram of the mounting frame of the flue duct flushing device at the inlet of the desulfurization absorption tower provided by the present utility model;

[0026] Figure 3 Structural schematic diagram of the rotating mechanism of the flue duct flushing device at the inlet of the desulfurization absorption tower provided by the present utility model;

[0027] Figure 4 Structural schematic diagram of the limiting mechanism of the flue duct flushing device at the inlet of the desulfurization absorption tower provided by the present utility model;

[0028] Figure 5 Structural schematic diagram of the driving mechanism of the flue duct flushing device at the inlet of the desulfurization absorption tower provided by the present utility model;

[0029] Figure 6 Structural schematic diagram of the connection between the flushing water pipe and the water inlet pipe of the flue duct flushing device at the inlet of the desulfurization absorption tower provided by the present utility model.

[0030] Explanation of reference numerals:

[0031] 1, driving mechanism; 2, flue wall; 3, mounting frame; 4, flushing water pipe; 5, absorption tower; 6, nozzle; 7, rotating mechanism; 8, limiting mechanism; 9, driving rod; 10, waist-shaped groove; 11, limiting rod; 12, fixing rod; 13, fixing bracket; 14, driving motor; 15, pulse valve; 16, water inlet pipe; 17, hoop; 18, tripod; 19, support frame; 20, sealing bearing. Detailed implementation manners

[0032] In the following, only some exemplary embodiments are briefly described. As those skilled in the art can recognize, the described embodiments can be modified in various different ways without departing from the spirit or scope of the present disclosure. Therefore, the drawings and the description are considered to be exemplary in nature rather than restrictive.

[0033] In the description of the present disclosure, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present disclosure and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present disclosure. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of the described features. In the description of the present disclosure, "a plurality" means two or more unless otherwise specifically defined.

[0034] In the description of the present disclosure, it should be noted that unless otherwise clearly specified and limited, the terms "mounted", "connected" and "coupled" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection, an electrical connection, or a connection capable of mutual communication; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present disclosure may be understood according to specific circumstances.

[0035] In the present disclosure, unless otherwise clearly specified and limited, the first feature being "on" or "under" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely means that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely means that the horizontal height of the first feature is lower than that of the second feature.

[0036] The following disclosure provides many different embodiments or examples for implementing different structures of the present disclosure. To simplify the disclosure of the present disclosure, the components and settings of specific examples are described below. Of course, they are only examples and are not intended to limit the present disclosure. In addition, the present disclosure may repeat reference numerals and / or reference letters in different examples. This repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present disclosure provides examples of various specific processes and materials, but those of ordinary skill in the art can be aware of the application of other processes and / or the use of other materials.

[0037] The preferred embodiments of the present disclosure are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present disclosure and are not used to limit the present disclosure.

[0038] Please refer to Figures 1 to 6 As shown, the present utility model provides a flue gas duct washing device at the inlet of a desulfurization absorption tower, including: a driving mechanism 1, arranged on the flue wall 2 of the inlet flue; a mounting frame 3, the mounting frame 3 is arranged on the flue wall 2 of the inlet flue, a washing water pipe 4 is arranged on the mounting frame 3, the washing water pipe 4 is connected to the driving mechanism 1, and a plurality of nozzles 6 are arranged on the washing water pipe 4; a rotating mechanism 7, connected to the driving mechanism 1 and the washing water pipe 4, the driving mechanism 1 drives the rotating mechanism 7 to rotate, and drives the washing water pipe 4 to rotate a predetermined angle; a limiting mechanism 8, arranged on the mounting frame 3, the limiting mechanism 8 is used to limit the rotation range of the washing water pipe 4.

[0039] By arranging the driving mechanism 1 on the inlet flue of the desulfurization absorption tower 5, the driving mechanism 1 can drive the rotating mechanism 7 to rotate, and the rotating mechanism 7 drives the washing water pipe 4 to rotate a predetermined angle, and then drives the nozzles 6 on the washing water pipe 4 to rotate and align with the position where gypsum accumulates, so as to wash away the accumulated gypsum, and thus avoid the situation that the accumulated gypsum is likely to cause flue corrosion, the flue gas flow rate increases, and the flue wear is aggravated. Among them, the limiting mechanism 8 can limit the rotation angle of the washing water pipe 4 to ensure that the rotation position of the washing water pipe 4 is at the position where the gypsum accumulates for washing.

[0040] Among them, the diameter of the washing water pipe 4 can be adjusted according to the washing water volume to ensure that the washing water flow rate of the washing water pipe 4 of the flue gas duct washing device at the inlet of the desulfurization absorption tower is about 3 m / s (net flow rate), and the washing water volume only needs to meet the requirement of washing the accumulated gypsum clean.

[0041] The washing water pipe 4 is located at the bottom of the inlet flue, about 800 - 1000 mm above the bottom of the inlet flue vertically, and about 1.5 - 2 m away from the horizontal projection of the absorption tower 5.

[0042] Moreover, multiple nozzles 6 are on the same straight line, and the angle of the outermost nozzle 6 can be finely adjusted so that the nozzles 6 can completely cover the bottom surface of the inlet flue.

[0043] The multiple nozzles 6 are arranged on the flushing water pipe 4 at intervals and evenly. The nozzle 6 is made by deflecting and flattening the end of the flushing water pipe 4 into a slit with a width of about 10 mm.

[0044] Specifically, the rotation angle of the flushing water pipe 4 is 10° - 45°.

[0045] In some alternative embodiments, the rotation mechanism 7 includes a driving rod 9 and a waist-shaped groove 10. The waist-shaped groove 10 is provided at the end of the flushing water pipe 4. One end of the driving rod 9 is connected to the driving mechanism 1, and the other end is inserted into the waist-shaped groove 10. The driving mechanism 1 drives the driving rod 9 to slide in the waist-shaped groove 10 and drives the flushing water pipe 4 to rotate by a predetermined angle.

[0046] Through the arrangement of the driving rod 9, the connection with the driving mechanism 1 is realized, and the driving mechanism 1 drives the driving rod 9 to rotate, so that the driving rod 9 moves in the waist-shaped groove 10, thereby adjusting the predetermined angle of the flushing water pipe 4 and making the flushing water pipe 4 and the nozzles 6 in the best position for flushing the gypsum accumulation.

[0047] In some alternative embodiments, the limiting mechanism 8 includes a limiting rod 11 and two fixing rods 12. The two fixing rods 12 are provided on the mounting frame 3. One end of the limiting rod 11 is connected to the flushing water pipe 4, and the other end of the limiting rod 11 is located between the two fixing rods 12.

[0048] Through the arrangement of the limiting rod 11 and the two fixing rods 12, that is, when the flushing water pipe 4 rotates, the limiting rod 11 rotates together with the flushing water pipe 4, and the rotation range of the limiting rod 11 is between the two fixing rods 12, so that the rotation range of the flushing water pipe 4 can be limited.

[0049] Among them, the driving mechanism 1 includes a fixed bracket 13 and a driving motor 14. The fixed bracket 13 is provided on the smoke wall 2, and the driving motor 14 is provided on the fixed bracket 13 and is connected to the driving rod 9.

[0050] In some alternative embodiments, a pulse valve 15 is provided at the water inlet end of the flushing water pipe 4 to form a water hammer effect in the flushing water pipe 4, increase the impact force of the flushing water, and make the flushing effect better.

[0051] The flue inlet flushing device of the desulfurization absorption tower further includes a water inlet pipe 16 and a hoop 17. The water inlet pipe 16 is connected to the flushing water pipe 4 through a sealed bearing 20; the hoop 17 is provided on the mounting frame 3, and the sealed bearing 20 is provided in the hoop 17.

[0052] That is, through the setting of the hoop 17, the installation of the sealing bearing 20 is facilitated. At the same time, the setting of the sealing bearing 20 realizes the sealing of the flushing water pipe 4 and the water inlet pipe 16, ensures the sealing performance of the connection between the flushing water pipe 4 and the water inlet pipe 16, and avoids water leakage.

[0053] In this embodiment, the mounting frame 3 includes a triangular frame 18 and a support frame 19. The triangular frame 18 is arranged on the smoke wall 2, the support frame 19 is arranged on the triangular frame 18, and the flushing water pipe 4 is arranged on the support frame 19.

[0054] The support frame 19 is supported by a steel pipe, channel steel, square steel or other structures with stable structures, and is evenly arranged to ensure the stability of the flushing water pipe 4 and prevent the flushing water pipe 4 from deforming under the impact of the flue gas. At the same time, the setting of the triangular frame 18 can ensure the stability of the connection with the smoke wall 2.

[0055] Among them, the flushing water pipe 4, the mounting frame 3, the hoop 17 and the nozzle 6 are all made of duplex stainless steel, so as to reduce corrosion and wear.

[0056] The present utility model also provides a flushing system for the inlet flue of a desulfurization absorption tower, including the above-mentioned flushing device for the inlet flue of a desulfurization absorption tower.

[0057] Obviously, the above embodiments are merely examples for clear illustration and are not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation manners here. And the obvious changes or modifications derived therefrom are still within the protection scope of the present invention.

Claims

1. A flue duct flushing device at the inlet of a desulfurization absorption tower, characterized in that: include: A driving mechanism (1) is arranged on a smoke wall (2) of an inlet smoke duct; A mounting frame (3), the mounting frame (3) being arranged on the smoke wall (2) of the inlet smoke duct, a flushing water pipe (4) being arranged on the mounting frame (3), the flushing water pipe (4) being connected to the driving mechanism (1), and a plurality of nozzles (6) being arranged on the flushing water pipe (4); The rotating mechanism (7) is connected to the driving mechanism (1) and the flushing water pipe (4), and the driving mechanism (1) drives the rotating mechanism (7) to rotate, and drives the flushing water pipe (4) to rotate at a predetermined angle; The limiting mechanism (8) is arranged on the mounting frame (3), and the limiting mechanism (8) is used to limit the rotation range of the flushing water pipe (4).

2. A flue duct flushing device at the inlet of a desulfurization absorption tower according to claim 1, characterized in that: The flushing water pipe (4) rotates at a predetermined angle of 10°-45°.

3. A flue duct flushing device at the inlet of a desulfurization absorption tower according to claim 2, characterized in that: The rotating mechanism (7) comprises a driving rod (9) and a waist-shaped groove (10). The waist-shaped groove (10) is arranged at the end of the flushing water pipe (4). One end of the driving rod (9) is connected to the driving mechanism (1), and the other end is inserted into the waist-shaped groove (10). The driving mechanism (1) drives the driving rod (9) to slide in the waist-shaped groove (10) and drives the flushing water pipe (4) to rotate at a predetermined angle.

4. A flue duct flushing device for an inlet of a desulfurization absorption tower according to any one of claims 1 to 3, characterized in that: The limiting mechanism (8) comprises a limiting rod (11) and two fixing rods (12). The two fixing rods (12) are arranged on the mounting frame (3). One end of the limiting rod (11) is connected to the flushing water pipe (4), and the other end of the limiting rod (11) is located between the two fixing rods (12).

5. A flue duct flushing device at the inlet of a desulfurization absorption tower according to claim 4, characterized in that: The driving mechanism (1) comprises a fixed bracket (13) and a driving motor (14); the fixed bracket (13) is arranged on the smoke wall (2); the driving motor (14) is arranged on the fixed bracket (13) and is connected to the driving rod (9).

6. A flue gas flushing device at the inlet of a desulfurization absorption tower according to claim 5, characterized in that: A pulse valve (15) is provided at the water inlet end of the flushing water pipe (4).

7. A flue gas flushing device at the inlet of a desulfurization absorption tower according to claim 5, characterized in that: It also comprises a water inlet pipe (16), which is connected to the flushing water pipe (4) via a sealing bearing (20).

8. A flue gas flushing device at the inlet of a desulfurization absorption tower according to claim 7, characterized in that: It also comprises a hoop (17), which is arranged on the mounting frame (3), and a sealed bearing (20) is arranged in the hoop (17).

9. The desulfurization absorption tower inlet flue flushing device according to claim 1, characterized in that: The mounting frame (3) comprises a tripod (18) and a support frame (19), wherein the tripod (18) is arranged on the smoke wall (2), the support frame (19) is arranged on the tripod (18), and the flushing water pipe (4) is arranged on the support frame (19).

10. A flue gas flushing system at the inlet of a desulfurization absorption tower, characterized in that: It comprises a flue duct flushing device for an inlet of a desulfurization absorption tower as described in any one of claims 1-9.

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