Spraying structure for desulfurizing tower

Abstract

The utility model discloses a spraying structure for a desulfurizing tower, which belongs to the technical field of desulfurizing tower cleaning and comprises a tower body, an exhaust pipe, an air inlet component and a spraying component. A spraying chamber is arranged in the tower body; through the cooperation of the gas inlet assembly and the spraying assembly, waste gas can firstly enter the gas inlet ring pipe through the gas inlet pipe, and then enter the spraying chamber from the peripheral side of the tower body through the plurality of uniformly distributed gas outlet pipes, so that the distribution uniformity of gas flow in the spraying chamber is obviously improved. The waste gas is not limited in the area near the feeding hole, but uniformly enters the spraying chamber in an annular multi-point manner, so that the conditions that the gas density in part of the area is too high and the gas flow in other areas is sparse are avoided. The spraying ring pipe located above the gas outlet pipe and the nozzles arranged in a downward spraying mode are matched, waste gas can make full contact with spraying liquid in the spraying chamber, the coverage range and the contact efficiency of the desulfurization reaction are greatly improved, and the problems that in the prior art, gas-liquid contact is insufficient, and the desulfurization efficiency is reduced are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to desulfurizing tower cleaning technical field, concretely relates to a spray structure for desulfurizing tower. BACKGROUND

[0002] In the waste gas emission process of coal-fired power plants, metallurgy, chemical industry and other industries, there are often a large amount of sulfur dioxide and other acid gases. If such gases are directly discharged without treatment, not only will it cause air pollution, but also will cause acid rain, seriously affecting the ecological environment and human health. For this reason, wet desulfurization technology is widely used because of its high reaction efficiency and remarkable desulfurization effect, and the desulfurizing tower as the core equipment bears the important role of gas-liquid contact and mass transfer reaction.

[0003] The existing desulfurizing tower generally sprays lime slurry, limestone slurry or other alkaline absorption liquid into the tower to fully contact and react with sulfur-containing waste gas, thereby achieving the purpose of desulfurization. However, during the waste gas treatment process, if the gas-liquid contact is not sufficient or the spray liquid distribution is uneven, it will lead to a decrease in desulfurization efficiency, and even the situation of waste gas entraining liquid droplets, affecting the subsequent emission standard.

[0004] CN223337122U is a spray structure for desulfurizing tower, which includes a water tank, a pump, a first conveying pipe, a spray pipe, an external thread pipe, a spray head and a chute. The spray structure can solve the problem of greatly reducing the contact area of waste gas and spray liquid, and many waste gases cannot fully contact with the desulfurizing agent, thereby reducing the removal efficiency of sulfur dioxide and other sulfides. The second connecting pipe inside the external thread pipe guides the water to the spray head. The chute opened in the spray head makes the sprayed water at a specific angle and direction. When the water flows out through the chute on the spray head, it will drive the spray head and the second connecting pipe to rotate in the internal part of the external thread pipe through different water pressures, thereby achieving the effect of rotating water spray to cover the inside of the tower body.

[0005] The above-mentioned prior art has the following defects:

[0006] The waste gas only enters the tower through a single large-diameter feed pipe, and then relies on the spray structure above the tower body to cover the gas, which causes the waste gas to concentrate near the feed port when entering the tower body, the flow field distribution is uneven, the gas density is large in some areas, and the gas flow is sparse in other areas, leading to insufficient contact between the waste gas and the spray liquid, and reducing the desulfurization efficiency. UTILITY MODEL CONTENTS

[0007] The utility model aims to provide a spray structure for desulfurizing tower, which solves the problem of waste gas concentrating near the feed port when entering the tower body in the prior art, the flow field distribution is uneven, the gas density is large in some areas, and the gas flow is sparse in other areas, leading to insufficient contact between the waste gas and the spray liquid, and reducing the desulfurization efficiency.

[0008] To solve the above technical problems, the utility model adopts the following technical solutions:

[0009] A spray structure for a desulfurization tower, comprising:

[0010] A tower body having a spray chamber inside;

[0011] An exhaust pipe provided at the top of the tower body and communicating with the spray chamber;

[0012] An air inlet assembly comprising an air inlet ring pipe, an air outlet pipe, and an air inlet pipe;

[0013] The air inlet ring pipe is provided around the outside of the tower body; the air outlet pipe is arranged in a circular array on the air inlet ring pipe; one end of the air outlet pipe communicates with the air inlet ring pipe, and the other end passes through the tower body to communicate with the spray chamber; the air inlet pipe is provided in communication on the air inlet ring pipe;

[0014] A spray assembly comprising a spray ring pipe, a spray head, and a water supply component;

[0015] The spray ring pipe is provided inside the tower body and is positioned higher than the air outlet pipe; the spray head is installed in a circular array in communication on the spray ring pipe, with the spray head arranged downwardly; the water supply component is provided outside the tower body to deliver spray liquid to the spray ring pipe.

[0016] A further technical solution is that one end of the air outlet pipe inside the spray chamber is provided with an inclined guide baffle.

[0017] A further technical solution is that the water supply component comprises a liquid supply tank, a water pump, and a liquid supply pipe; the liquid supply tank is provided on the outside wall of the tower body; the water inlet end of the water pump communicates with the inside of the liquid supply tank; the water outlet end of the water pump communicates with one end of the liquid supply pipe; the other end of the liquid supply pipe extends into the tower body and communicates with the spray ring pipe.

[0018] A further technical solution is that a liquid filling opening is formed on the liquid supply tank; a cover plate is detachably provided on the liquid filling opening.

[0019] A further technical solution is that it further comprises a longitudinal movement assembly; the longitudinal movement assembly comprises a movement ring, a lead screw, and a driving component; the movement ring is coaxially provided on the upper side of the spray ring pipe and can slide in the spray chamber in a vertical direction; the movement ring is in sliding contact with the peripheral side of the spray chamber; the driving component is provided on the tower body; the driving component has a vertically arranged rotating end; the upper end of the lead screw is coaxially fixed on the rotating end; the lower end of the lead screw is rotatably provided on the inner bottom wall of the spray chamber; the lead screw is threadedly provided through the movement ring.

[0020] A further technical solution is that one end of the liquid supply pipe slides through the moving ring and communicates with the spray ring pipe; the liquid supply pipe is a flexible telescopic pipe.

[0021] A further technical solution is that the moving ring has vertically arranged guide holes; and a guide rod that is slidably connected to the guide holes is fixed in the spray chamber.

[0022] A further technical solution is that the bottom of the tower body is connected to a funnel-shaped drain cylinder; a control valve is provided at the lower end of the drain cylinder.

[0023] A further technical solution is that a support ring is provided on the periphery of the tower body; and multiple support feet are provided on the bottom side of the support ring.

[0024] Compared with the prior art, the beneficial effects of this utility model are:

[0025] This invention features an inlet ring pipe on the outer side of the tower body, with several outlet pipes arranged in a circular array on the inlet ring pipe. These outlet pipes are radially arranged along the tower body and connected to the spray chamber. This allows waste gas to first enter the inlet ring pipe through the inlet pipe, and then simultaneously enter the spray chamber from the periphery of the tower body through multiple evenly distributed outlet pipes. Unlike existing technologies where waste gas enters the tower body through a single inlet, this design enables multi-point distribution of waste gas upon entry, significantly improving the uniformity of airflow distribution within the spray chamber. This ensures that the waste gas is no longer confined to the area near the inlet, but enters the spray chamber evenly in a ring-shaped, multi-point manner, thus avoiding situations where some areas have excessively high gas density and other areas have sparse airflow. Combined with the spray ring pipe located above the outlet pipes and the spray nozzles arranged downwards, the waste gas can fully contact the spray liquid within the spray chamber, greatly improving the coverage and contact efficiency of the desulfurization reaction, and solving the problems of insufficient gas-liquid contact and reduced desulfurization efficiency in existing technologies. Attached Figure Description

[0026] To make the objectives, technical solutions, and beneficial effects of this utility model clearer, the following drawings are provided for illustration:

[0027] Figure 1 This is a three-dimensional drawing of the present invention.

[0028] Figure 2 This utility model Figure 1 A magnified view of a portion of point A in the middle.

[0029] Figure 3 This is a three-dimensional view of the layout structure inside the tower body of this utility model.

[0030] Figure 4 This is a three-dimensional view of the spray assembly of this utility model.

[0031] Icons: 1. Tower body, 2. Exhaust pipe, 3. Inlet ring pipe, 4. Outlet pipe, 5. Spray ring pipe, 6. Spray head, 7. Water supply component, 8. Guide baffle, 9. Liquid supply tank, 10. Water pump, 11. Liquid supply pipe, 12. Moving ring, 13. Screw, 14. Drive component, 15. Guide rod, 16. Drain cylinder, 17. Control valve, 18. Support ring, 19. Support foot, 20. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0033] Example:

[0034] like Figures 1-4 As shown, this utility model provides a spray structure for a desulfurization tower, including a tower body 1, an exhaust pipe 2, an air inlet assembly, and a spray assembly; the tower body 1 is a vertically arranged cylindrical structure, including a top cover and a cylinder; the top cover is bolted to the cylinder; a spray chamber is provided inside the tower body 1; the exhaust pipe 2 is located at the top of the tower body 1 and communicates with the spray chamber.

[0035] The air intake assembly includes an air intake ring pipe 3, an air outlet pipe 4, and an air intake pipe 5; the air intake ring pipe 3 is arranged around the outside of the tower body 1; the air outlet pipe 4 is arranged in a circular array on the air intake ring pipe 3; the air outlet pipe 4 is arranged radially along the tower body 1; one end of the air outlet pipe 4 is connected to the air intake ring pipe 3, and the other end passes through the tower body 1 and is connected to the spray chamber; the air intake pipe 5 is connected to the air intake ring pipe 3.

[0036] The spray assembly includes a spray ring pipe 6, nozzles 7, and a water supply component 8. The spray ring pipe 6 is located inside the tower body 1 and is positioned higher than the air outlet pipe 4. The nozzles 7 are arranged in a circular array on the spray ring pipe 6 and face downwards. The water supply component 8 is located outside the tower and is used to supply spray liquid to the spray ring pipe 6.

[0037] The principles and beneficial effects of the above technical solution:

[0038] The utility model discloses a waste gas distribution device for spray chamber of tower body, comprising a tower body 1, an air inlet ring pipe 3 and a plurality of air outlet pipes 4, wherein the air inlet ring pipe 3 is arranged on the outer side of the tower body 1, and the air outlet pipes 4 are arranged in a circular array on the air inlet ring pipe 3.

[0039] In the embodiment, the air outlet pipe 4 is provided with an inclined guide baffle 9 at one end in the spray chamber.

[0040] The principle and beneficial effects of the above technical solution are as follows:

[0041] The guide baffle 9 can guide the waste gas flow discharged from the air outlet pipe 4, so that the waste gas is diffused in a larger range when discharged, thereby effectively increasing the gas discharge area and improving the distribution uniformity of the waste gas in the spray chamber.

[0042] In the embodiment, the water supply device 8 comprises a liquid supply tank 10, a water pump 11 and a liquid supply pipe 12; the liquid supply tank 10 is arranged on the outer side wall of the tower body 1; the water inlet end of the water pump 11 is communicated to the inside of the liquid supply tank 10; the water outlet end of the water pump 11 is communicated to one end of the liquid supply pipe 12; the other end of the liquid supply pipe 12 extends into the tower body 1 and is communicated to the spray ring pipe 6; a liquid inlet is opened on the liquid supply tank 10; and a cover plate is threadedly connected to the liquid inlet.

[0043] The principle and beneficial effects of the above technical solution are as follows:

[0044] The liquid supply tank 10 provides a stable storage environment for the spray liquid; the water pump 11 extracts the spray liquid from the liquid supply tank 10 through the water inlet end and continuously delivers the spray liquid to the spray ring pipe 6 inside the tower body 1 through the water outlet end and the liquid supply pipe 12, thereby ensuring that the spray head 7 can continuously and stably perform the spraying operation, avoiding the problem that the spray liquid is interrupted due to unstable liquid supply in the prior art, thereby affecting the desulfurization reaction efficiency. At the same time, the liquid inlet and the cover plate facilitate the replenishment and sealing of the spray liquid.

[0045] In the embodiment, the longitudinal moving assembly is further included; the longitudinal moving assembly includes a moving ring 13, a lead screw 14 and a driving member 15; the spraying ring pipe 6 is fixed to the bottom side of the moving ring 13; the moving ring 13 is coaxially arranged on the upper side of the spraying ring pipe 6 and can slide in the spraying chamber in the vertical direction; the moving ring 13 is in sliding contact with the peripheral side of the spraying chamber; the driving member 15 is arranged on the tower body 1; the driving member 15 has a rotating end arranged in the vertical direction; the upper end of the lead screw 14 is coaxially fixed to the rotating end; the lower end of the lead screw 14 is rotatably arranged on the inner bottom wall of the spraying chamber; the lead screw 14 is threadedly arranged through the moving ring 13; the moving ring 13 is provided with a guide hole arranged in the vertical direction; a guide rod 16 in sliding connection with the guide hole is fixed in the spraying chamber; and the driving member 15 is a servo motor.

[0046] Principles and beneficial effects of the above technical solutions:

[0047] The lead screw 14 is driven to rotate by the driving member 15, so that the moving ring 13 can move up and down in the spraying chamber along the lead screw 14, thereby driving the spraying ring pipe 6 to adjust the spraying height in the vertical direction. The moving ring 13 is in sliding contact with the peripheral side of the spraying chamber and is matched with the guide hole and the guide rod 16, so that the vertical movement of the spraying ring pipe 6 is stable and does not deviate. Meanwhile, the moving ring 13 can also scrape off the adhering objects adhered to the peripheral side of the spraying chamber, and the spraying of the nozzle can improve the cleaning effect of the adhering objects. The arrangement of the longitudinal moving assembly enables the spraying ring pipe 6 to be flexibly adjusted in height inside the tower body 1, so as to change the action position and range of the spraying liquid according to the waste gas concentration distribution and processing requirements, thereby realizing layered spraying and fixed-point processing. The problems of fixed spraying height of the existing spraying structure and inability to adapt to multi-working condition operation are effectively solved, and the desulfurization efficiency and device adaptability are improved.

[0048] In the embodiment, one end of the liquid supply pipe 12 is slidably arranged through the moving ring 13 and is in communication with the spraying ring pipe 6; the liquid supply pipe 12 is a flexible expansion pipe, which can be a corrugated pipe.

[0049] Principles and beneficial effects of the above technical solutions:

[0050] The water pipe is slidably arranged through the moving ring 13 and is in communication with the spraying ring pipe 6, and is designed as a flexible expansion pipe, so that it can be freely expanded and contracted during the up-and-down movement of the spraying ring pipe 6 along with the moving ring 13, thereby avoiding the bending, falling off or breaking of the hard pipe due to the change in height.

[0051] The use of the flexible expansion pipe ensures the reliable connection of the liquid supply pipe 12 and the spraying ring pipe 6, and simultaneously realizes the barrier-free height adjustment of the spraying ring pipe 6.

[0052] In the embodiment, a funnel-shaped liquid discharge cylinder 17 is arranged at the bottom of the tower body 1; a control valve 18 is arranged at the lower end of the liquid discharge cylinder 17; a supporting ring 19 is arranged at the peripheral side of the tower body 1; three supporting legs 20 are arranged at the bottom side of the supporting ring 19; and the control valve 18 is an electromagnetic valve.

[0053] The principle and beneficial effects of the above technical solution are:

[0054] The bottom of the tower body 1 is provided with a funnel-shaped liquid discharge cylinder 17, so that the waste liquid generated in the spraying process can be smoothly and centrally discharged, improving the cleanliness and liquid discharge efficiency of the desulfurization device, and the control valve 18 is used to adjust or close the liquid discharge process. The support ring 19 is distributed on the side of the tower body 1 and is in contact with the ground through three supporting feet 20 to maintain the stability of the whole tower body 1.

[0055] Although the present application has been described with reference to a number of illustrative embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the scope of the principles and spirit of the disclosure. More particularly, various modifications and improvements can be made to the components of the subject combination layout and / or the layout itself, within the scope and range of equivalents of the disclosure, drawings and claims. In addition to modifications and improvements to the components and / or layout, other uses will also be apparent to those skilled in the art.

Claims

1. A spray structure for a desulfurization tower, characterized in that: a tower body, in which a spray chamber is arranged; an exhaust pipe arranged on the top of the tower body and communicated with the spray chamber; an air inlet assembly comprising an air inlet ring pipe, an air outlet pipe and an air inlet pipe; the air inlet ring pipe is arranged around the outside of the tower body; the air outlet pipe is arranged in a circular array on the air inlet ring pipe; one end of the air outlet pipe is communicated with the air inlet ring pipe, and the other end penetrates the tower body and is communicated with the spray chamber; the air inlet pipe is arranged on the air inlet ring pipe in communication; a spray assembly comprising a spray ring pipe, a spray head and a water supply member; the spray ring pipe is arranged in the tower body and is arranged at a height higher than the air outlet pipe; the spray head is arranged in a circular array on the spray ring pipe in communication and faces downward; and the water supply member is arranged outside the tower and is used to deliver spray liquid to the spray ring pipe.

2. The spray structure for a desulfurization tower according to claim 1, characterized in that: the air outlet pipe is provided with an inclined guide baffle at one end in the spray chamber.

3. The spray structure for a desulfurization tower according to claim 1, characterized in that: the water supply member comprises a liquid supply tank, a water pump and a liquid supply pipe; the liquid supply tank is arranged on the outside wall of the tower body; the water inlet end of the water pump is communicated with the liquid supply tank; the water outlet end of the water pump is communicated with one end of the liquid supply pipe; and the other end of the liquid supply pipe extends into the tower body and is communicated with the spray ring pipe.

4. The spray structure for a desulfurization tower according to claim 3, characterized in that: the liquid supply tank is provided with a liquid inlet opening; and a cover plate is detachably arranged on the liquid inlet opening.

5. The spray structure for a desulfurization tower according to claim 3, characterized in that: it further comprises a longitudinal movement assembly; the longitudinal movement assembly comprises a movement ring, a lead screw and a driving member; the movement ring is coaxially arranged on the upper side of the spray ring pipe and can slide in the spray chamber in the vertical direction; the movement ring is in sliding contact with the peripheral side of the spray chamber; the driving member is arranged on the tower body; the driving member has a rotating end arranged in the vertical direction; the upper end of the lead screw is coaxially fixed on the rotating end; the lower end of the lead screw is rotatably arranged on the inner bottom wall of the spray chamber; and the lead screw is threadedly arranged through the movement ring.

6. The spray structure for a desulfurization tower according to claim 5, characterized in that: one end of the liquid supply pipe is slidably arranged through the movement ring and is communicated with the spray ring pipe; and the liquid supply pipe is a flexible telescopic pipe.

7. The spray structure for a desulfurization tower according to claim 5, characterized in that: the movement ring is provided with a vertical guide hole; and a guide rod is fixed in the spray chamber and is in sliding connection with the guide hole.

8. The spray structure for a desulfurization tower according to claim 1, characterized in that: the bottom of the tower body is communicated with a funnel-shaped liquid discharge cylinder; and the lower end of the liquid discharge cylinder is provided with a control valve.

9. The spray structure for a desulfurization tower according to claim 1, characterized in that: the peripheral side of the tower body is provided with a support ring; and the bottom side of the support ring is provided with a plurality of support legs. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

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