Spraying system of desulfurizing tower

Abstract

The utility model discloses a spraying system of a desulfurizing tower, which belongs to the technical field of spraying of desulfurizing towers and comprises a main frame with a hollow structure and communicated with the outside through a water inlet pipe; the plurality of branch pipes are fixedly mounted in the main frame and are communicated with the main frame, and the plurality of branch pipes are parallel to one another; the plurality of spray heads are fixedly mounted on the plurality of branch pipes respectively, and the spray heads are communicated with the corresponding branch pipes; wherein a storage groove for collecting impurities is formed in the inner side wall of the spray head, the spray head can regularly discharge the impurities in the storage groove, the impurities in spray liquid can be automatically collected, automatic impurity discharge is regularly achieved, the continuous operation efficiency of the system is improved, and the maintenance cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to desulfurizing tower spraying technical field, concretely relates to a desulfurizing tower spraying system. BACKGROUND

[0002] As the core equipment of industrial waste gas treatment, the desulfurizing tower spraying system is widely used in the fields of coal-fired power plants, chemical plants and the like, and through the contact of atomized spraying liquid with flue gas, sulfides and other pollutants are efficiently removed. However, in actual operation, the spraying system is long-term in the environment of high particulate matter and easy scaling, and the problem of nozzle blockage is particularly prominent. In the prior art, the nozzles are mostly of fixed structure, and the spraying holes are easy to be blocked by impurities, resulting in uneven atomization and decreased desulfurization efficiency, and even frequent shutdown for cleaning is required, which seriously affects the continuous operation efficiency of the system and increases the maintenance cost.

[0003] Although the traditional anti-blocking scheme (such as adding a filter screen and increasing the hole diameter) can alleviate the problem, it has new defects such as easy blockage of the filter screen and reduced atomization effect. Some improved designs attempt to introduce rotating nozzles or detachable structures, but the rotating parts rely on external power, and the structure is complex and the energy consumption is high; and the detachable cleaning method still requires manual intervention and cannot realize automatic debris removal.

[0004] To solve the above problems, the utility model provides a desulfurizing tower spraying system. UTILITY MODEL CONTENTS

[0005] In view of the above technical deficiencies, the utility model aims to provide a desulfurizing tower spraying system which can automatically collect impurities in the spraying liquid and periodically realize automatic debris removal, thereby improving the efficiency of continuous operation of the system and reducing the maintenance cost.

[0006] To solve the above technical problems, the utility model adopts the following technical scheme: the utility model provides a desulfurizing tower spraying system, comprising:

[0007] A main frame, which is of hollow structure and communicates with the outside through a water inlet pipe;

[0008] A plurality of branch pipes, which are fixedly installed inside the main frame and communicate with the main frame, and are parallel to each other;

[0009] A plurality of nozzles, which are respectively fixedly installed on the plurality of branch pipes and communicate with the corresponding branch pipes;

[0010] Among them, the inner side wall of the nozzle is provided with a receiving groove for collecting impurities, and the nozzle can periodically discharge the impurities inside the receiving groove.

[0011] Preferably, the nozzle comprises:

[0012] The pipe body is a circular pipe with both ends through, and the upper end of the pipe body is fixedly connected with the corresponding branch pipe, and the lower end is inwardly folded to form a support ring;

[0013] The guide plate is coaxially rotatably installed inside the lower end of the pipe body, and a plurality of spray holes are arranged on the guide plate;

[0014] The lifting assembly is installed inside the pipe body and above the guide plate, and is used for controlling the lifting of the guide plate;

[0015] The receiving groove is arranged on the inner side surface of the lower end of the pipe body and is located outside the guide plate, and when the guide plate is lifted, the receiving groove is communicated with the outside through the opening of the lower end of the pipe body.

[0016] Preferably, the upper side surface of the guide plate is fixedly installed with a fixed shaft, the upper end of the fixed shaft penetrates through the fixed plate and is fixedly connected with turbine blades, the fixed shaft is rotatably connected with the fixed plate and can slide on the fixed plate along the axial direction of the fixed shaft.

[0017] Preferably, a support plate is sleeved with a section of the fixed shaft above the fixed plate, and the ball rotatably installed on the lower side surface of the support plate is in contact with the fixed plate.

[0018] Preferably, the material of the upper end of the fixed shaft is a magnetic material, an electromagnet is arranged above the fixed shaft, and the electromagnet is installed inside the pipe body through a base rod.

[0019] Preferably, the upper side surface of the guide plate is a slope with a high middle and low periphery.

[0020] Preferably, the shape of the cross section of the receiving groove is a circular arc, and the receiving groove is arranged on the slope of the inner side wall of the pipe body, and the inner diameter of the upper end of the slope is greater than that of the lower end.

[0021] The utility model discloses the beneficial effect lies in:

[0022] The utility model discloses the setting of turbine blade, guide plate and receiving groove, realizes when carrying out the spray work, and the spray liquid will drive the guide plate to rotate through turbine blade, and the upper side surface of guide plate is the slope with high middle and low periphery, can throw the impurity that cannot pass the spray hole to the inside of receiving groove, avoids the impurity and blocks the spray hole, and the effect of influence of spraying.

[0023] The utility model discloses the material of the upper end of the fixed shaft is ferromagnetic material, and the electromagnet is arranged on the fixed shaft, and the electromagnet will produce adsorption force to the fixed shaft when electrifying, thereby driving the guide plate to lift, and the impurity in the receiving groove will be discharged along with the spray liquid, avoiding that the impurity is too much and blocks the pipe body. DRAWINGS

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0025] Fig. 1 This is a schematic diagram of the overall structure of the present invention (first perspective).

[0026] Fig. 2 This is a schematic diagram of the overall structure of the present invention (second perspective).

[0027] Fig. 3 This is a cross-sectional view (first perspective) of the tube body of this utility model.

[0028] Fig. 4 This is a cross-sectional view (second perspective) of the tube body of this utility model.

[0029] Explanation of reference numerals in the attached figures:

[0030] 1. Main frame, 2. Branch pipe, 3. Storage slot, 4. Pipe body, 5. Guide plate, 6. Fixed shaft, 7. Fixed plate, 8. Turbine blade, 9. Support plate, 10. Ball bearing, 11. Base rod, 12. Electromagnet. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] This utility model provides a desulfurization tower spray system, such as Figs. 1 to 4 As shown.

[0033] Example 1:

[0034] A desulfurization tower spray system includes a main frame 1, branch pipes 2, and a spray head assembly. The main frame 1 is circular with a hollow square tube structure in cross-section, and has a water inlet pipe on its side. It is internally connected to multiple parallel branch pipes 2. The branch pipes 2 are fixedly connected to the main frame 1, and the multiple branch pipes 2 are parallel to each other and equidistantly distributed inside the main frame 1 to ensure uniform spray coverage.

[0035] A plurality of spray heads are vertically installed below each branch pipe 2, and each spray head comprises a pipe body 4, a guide plate 5 and a lifting assembly. The upper end of the pipe body 4 is connected with the branch pipe 2, and the lower end is inwardly folded to form an annular support ring. The guide plate 5 is coaxially installed inside the lower end of the pipe body 4, and the edge thereof is in clearance fit with the inner wall of the pipe body 4 to realize rotation and lifting. A plurality of spray holes are arranged on the guide plate 5. The spraying liquid from outside enters the inside of the main frame 1 through the water inlet pipe, then enters the inside of the branch pipe 2, and finally enters the inside of the pipe body 4, and realizes spraying through the spray holes on the guide plate 5.

[0036] An arc-shaped receiving groove 3 is arranged on the inner wall of the lower end of the pipe body 4, and is located outside the guide plate 5. A fixed shaft 6 is fixedly connected to the guide plate 5, penetrates through a fixed plate 7 inside the pipe body 4, and realizes axial sliding and circumferential rotation with the fixed plate 7 through a through hole structure. A turbine blade 8 is arranged on the outer side of the upper end of the fixed shaft 6. When the spraying liquid enters the pipe body 4 through the branch pipe 2, the turbine blade 8 is impacted to drive the fixed shaft 6 and the guide plate 5 to rotate synchronously. During the rotation, the spraying liquid is atomized and sprayed through the spray holes, and the impurities are thrown to the inside of the receiving groove 3 by the slope of the guide plate 5 due to centrifugal force. The upper side of the guide plate 5 is a slope with high middle and low periphery, which can enhance the centrifugal flow guiding effect, so that the impurities are better thrown to the inside of the receiving groove 3.

[0037] Embodiment two:

[0038] In order to realize automatic discharge of the impurities in the receiving groove 3 at regular intervals, the upper end of the fixed shaft 6 is made of ferromagnetic material (for example, low carbon steel), and an electromagnet 12 is installed directly above the fixed shaft 6. The electromagnet 12 is fixed to the inside of the pipe body 4 through a base rod 11. The electromagnet 12 is electrically connected with a timing controller outside, and is powered once at a preset period (for example, 24 hours). When powered, the electromagnet 12 attracts the fixed shaft 6 to move upward, drives the guide plate 5 to rise, and makes the receiving groove 3 communicate with the opening at the lower end of the pipe body 4. At this time, the spraying liquid flushes and discharges the impurities deposited in the receiving groove 3. After power-off, the electromagnet 12 loses magnetism, and the guide plate 5 is reset under the action of gravity and the pressure of the spraying liquid, and re-seals the receiving groove 3.

[0039] In order to reduce the friction between the fixed shaft 6 and the fixed plate 7 during rotation, a support plate 9 is fixedly sleeved on the outer side of a section of the fixed shaft 6 above the fixed plate 7. A plurality of rolling balls 10 are rotatably installed on the bottom surface of the support plate 9, and are in contact with the upper side of the fixed plate 7, so that the fixed shaft 6 and the guide plate 5 can rotate better.

[0040] The shape of the cross section of the receiving groove 3 is arc-shaped, and the receiving groove 3 is arranged on the slope of the inner wall of the pipe body 4. The inner diameter of the upper end of the slope is larger than that of the lower end, so that the groove wall of the receiving groove 3 forms a slope. Therefore, after the guide plate 5 moves upward, the spraying liquid can better flush the groove wall of the receiving groove 3 to discharge the impurities in the receiving groove 3.

[0041] Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application also intends to include these modifications and variations.

Claims

1. A desulfurization tower spray system characterized by, The utility model relates to a water purifying device, including: a main frame (1) which is a hollow structure and communicates with the outside through a water inlet pipe; a plurality of branch pipes (2) which are fixedly installed inside the main frame (1) and communicate with the main frame (1), and the plurality of branch pipes (2) are parallel to each other; a plurality of spray heads which are respectively fixedly installed on the plurality of branch pipes (2) and communicate with the corresponding branch pipes (2); wherein the inner side wall of the spray head is provided with a receiving groove (3) for collecting impurities, and the spray head can periodically discharge the impurities inside the receiving groove (3).

2. A spray system for a desulphurisation tower as claimed in claim 1, wherein, The spray head includes: a pipe body (4) which is a circular pipe with through ends, and the upper end of the pipe body (4) is fixedly connected with the corresponding branch pipe (2), and the lower end is inwardly folded to form a support ring; a guide plate (5) which is coaxially and rotatably installed inside the lower end of the pipe body (4), and the guide plate (5) is provided with a plurality of spray holes; a lifting assembly which is installed inside the pipe body (4) and located above the guide plate (5) for controlling the lifting of the guide plate (5); wherein the receiving groove (3) is provided on the inner side surface of the lower end of the pipe body (4) and located outside the guide plate (5), and when the guide plate (5) is lifted, the receiving groove (3) communicates with the outside through the opening of the lower end of the pipe body (4).

3. A spray system for a desulphurisation tower as claimed in claim 2, wherein The upper side surface of the guide plate (5) is fixedly installed with a fixed shaft (6), the upper end of the fixed shaft (6) penetrates through a fixed plate (7) and is fixedly connected with a turbine blade (8), the fixed shaft (6) is rotatably connected with the fixed plate (7) and can slide on the fixed plate (7) along the axial direction of itself.

4. A spray system for a desulphurisation tower as claimed in claim 3, wherein A support plate (9) is sleeved on the section of the fixed shaft (6) located above the fixed plate (7), and the ball (10) rotatably installed on the lower side surface of the support plate (9) is in contact with the fixed plate (7).

5. A spray system for a desulphurization tower as claimed in claim 3, wherein, The material of the upper end of the fixed shaft (6) is a magnetic material, an electromagnet (12) is arranged above the fixed shaft (6), and the electromagnet (12) is installed inside the pipe body (4) through a base rod (11).

6. A spray system for a desulfurization tower as defined in claim 2, wherein The upper side surface of the guide plate (5) is a slope with a high middle and low periphery.

7. A spray system for a desulfurization tower as defined in claim 1, wherein The shape of the cross section of the receiving groove (3) is a circular arc, and the receiving groove (3) is arranged on the slope of the inner side wall of the pipe body (4), and the inner diameter of the upper end of the slope is larger than that of the lower end.

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