Spray tower with spray head convenient to maintain

Abstract

The utility model belongs to the field of waste gas treatment equipment, and relates to a spray tower convenient for nozzle maintenance, which comprises a tower body, a spray device arranged in the tower body, a water inlet arranged on the inner side wall of the tower body, and an access hole arranged on the side wall of the tower body. The spraying device comprises an annular main pipe, a plurality of spraying branch pipes are installed on the inner side of the annular main pipe, and at least one spraying head is installed on each spraying branch pipe; an annular track is mounted on the inner side wall of the tower body, and the annular main pipe is rotatably mounted on the annular track; a water inlet connector is arranged on the annular main pipe and connected with the water inlet through a hose. When the spray tower is used for waste gas treatment and maintenance and replacement of the spray head, a worker can stretch hands into the tower body from the access hole to rotate the annular main pipe, and the spray head far away from the access hole is rotated to a position close to the access hole, so that the worker can stretch hands to touch the spray head to maintain and replace the spray head, and the operation is convenient; and the safety problems of falling, collision, waste gas suction and the like in the tower body are avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of waste gas treatment equipment and relates to a spray tower with a spray head that is easy to repair. Background Art

[0002] Spray towers are a common type of waste gas treatment equipment, primarily used to treat industrial waste gases such as dust-laden waste gases, acid- and alkali-corrosive waste gases, ammonia, hydrogen sulfide, and VOC organic waste gases. Existing spray towers have spray pipes and nozzles fixedly installed inside the tower body, and inspection ports with transparent windows are set on the side walls of the tower body.

[0003] During the waste gas treatment process, the sprinkler heads often become clogged. The reason is that the pollutants accumulated in the spray circulating water become more and more and clog the sprinkler heads. The pollutants include particulate matter from spray dust removal and paint residue from the spray treatment of waste gas from painting. There are also cases where foreign matter enters the sprinkler water tank due to inadequate management, causing the sprinkler heads to become clogged.

[0004] When inspecting the spray tower, you can observe through the transparent window whether the nozzles inside the tower are spraying normally. If a nozzle is found to be operating abnormally, you need to open the transparent window and the worker will reach in through the inspection port to repair and replace the nozzle. For nozzles that cannot be reached, the worker needs to climb into the tower through the inspection port to repair and replace the nozzle. Reaching in from outside the inspection port to repair and replace the nozzle is inconvenient, and entering the tower body may cause safety hazards such as falling, collision, and inhalation of exhaust gas. Utility Model Content

[0005] The purpose of the utility model is to provide a spray tower that is easy to repair the nozzle. The spray pipe can be rotatably installed inside the tower body. The nozzle can be brought close to the inspection port by rotating the spray pipe, making it convenient for workers to reach in from the outside of the inspection port to repair and replace the nozzle, so as to solve the problems raised in the above-mentioned background technology.

[0006] The utility model is achieved through the following technical solutions:

[0007] The hood is provided with a water inlet and a maintenance port, wherein the hood is provided with a water inlet and a maintenance port, wherein the hood includes a ring-shaped main pipe, a plurality of spray branches are installed on the inner side of the ring-shaped main pipe, and the interior of the spray branches is connected to the interior of the ring-shaped main pipe, and at least one spray head is installed on each spray branch pipe; an annular track is installed on the inner side wall of the tower body, and the annular main pipe is rotatably installed on the annular track. By rotating the annular main pipe, the spray branches and the spray heads can be driven to rotate, so that the spray heads are moved closer to the maintenance port on the side wall of the tower body from far to near, so that workers can reach the spray heads from the maintenance port to repair and replace them; a water inlet joint is provided on the annular main pipe, and the water inlet joint is connected to the water inlet by a hose to supply water to the annular main pipe, and the hose is flexible and bendable and has excess length to prevent it from being tightened when the annular main pipe is rotated. When the annular main pipe is rotated, the hose can adaptively bend and stretch to prevent the rotation of the annular main pipe from being blocked.

[0008] Further definition, the annular track includes an annular plate, the outer end of the annular plate is welded to the inner wall of the tower body, the top surface of the annular plate is provided with an annular arc groove, the annular main pipe is arranged in the annular arc groove, and the annular main pipe can rotate in the annular arc groove, and the annular track can support the annular main pipe.

[0009] Further restrictions, the annular main pipe and the spray branch pipe are made of stainless steel pipes, have a certain weight, and can avoid being blown by the airflow during the exhaust gas treatment process; the bottom surface of the annular main pipe is in smooth contact with the annular arc groove on the top surface of the annular track, with low friction, so that workers can easily rotate the spray device by hand.

[0010] Further definition, a coaxial limiting ring is provided on the inner side of the annular main pipe, and the limiting ring is fixed in the tower body through a bracket. The limiting ring is used to limit the spray device from above to prevent the spray device from leaving the annular track without hindering the rotation of the spray device.

[0011] Further definition, a pin plate is fixed to the bottom surface of the annular track near the inspection port, and a ring is mounted on the end of the spray branch pipe near the inspection port. A movable plate is hinged on the ring, and the movable plate and the pin plate can be fixedly connected by a pin, so that the spray device can be locked; when the spray device needs to be rotated, the pin is removed to disengage the movable plate from the pin plate, so that the spray device can be rotated by hand. The installation position of the above-mentioned pin plate and the ring is close to the inspection port, which is convenient for workers to operate.

[0012] In a further definition, the hose is a metal bellows or a metal bellows, which is flexible, bendable, not easy to be damaged, and durable.

[0013] According to a further definition, the plurality of spray branch pipes are evenly distributed radially on the inner side of the annular main pipe with the central axis of the annular main pipe as the center, and the outer end of each spray branch pipe is fixedly connected to the annular main pipe.

[0014] According to a further definition, the plurality of spray branch pipes are distributed in parallel and at intervals inside the annular main pipe, and both ends of each spray branch pipe are fixedly connected to the annular main pipe.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The spray tower is used for waste gas treatment. When it is observed from the transparent window that a nozzle inside the tower body is blocked and cannot work normally, the transparent window can be removed to open the inspection port, and the worker can reach into the tower body from the inspection port to repair and replace the nozzle; for the nozzle close to the inspection port, the worker can reach it and repair and replace it; for the nozzle far from the inspection port, the traditional method requires the worker to climb into the tower body from the inspection port to repair and replace the nozzle. In this application, the spray device is rotatable, and the worker reaches into the tower body from the inspection port to rotate the annular main pipe, and rotates the nozzle far from the inspection port to a position close to the inspection port, so that the worker can reach it and repair and replace it. The worker does not need to climb into the tower body again. The worker reaches out from the inspection port to repair and replace the nozzle, which is convenient for operation and avoids safety problems such as falling, collision, and inhalation of waste gas when entering the tower body. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly describes the drawings required for the specific embodiments or the description of the prior art. Similar elements or parts are generally identified by similar reference numerals throughout the drawings. Elements or parts in the drawings are not necessarily drawn to scale.

[0018] Figure 1 It is a structural diagram of the utility model;

[0019] Figure 2 for Figure 1 A magnified schematic diagram of the local structure at center A;

[0020] Figure 3 for Figure 1 Partial cross-sectional view in the middle BB direction;

[0021] Figure 4 This is a schematic diagram of the three-dimensional structure of the spray device in the utility model;

[0022] Figure 5 This is another structural schematic diagram of the spray device in the present utility model.

[0023] The names of the components in the figure are: 1. Tower body, 2. Spray device, 2.1. Ring main pipe, 2.2. Spray branch pipe, 2.3. Spray head, 2.4. Hose, 2.5. Water inlet joint, 3. Water inlet, 4. Limiting ring, 5. Bracket, 6. Inspection port, 7. Transparent window, 8. Water pump, 9. Rainproof box, 10. Water tank, 11. Air inlet, 12. Water supply pipe, 13. Ring track, 14. Ring, 15. Movable plate, 16. Pin plate, 17. Latch. DETAILED DESCRIPTION

[0024] The following embodiments of the technical solution of the present invention are described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention and are therefore only examples and are not intended to limit the scope of protection of the present invention.

[0025] In the description of this application, it should be understood that the terms "upper", "lower", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention 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, and therefore cannot be understood as a limitation on the present invention.

[0026] Example 1

[0027] A spray tower that is easy to maintain the nozzle, such as Figure 1 As shown, it includes a tower body 1, a spray device 2 is provided inside the tower body 1, a water inlet 3 is provided on the inner side wall of the tower body 1, and an inspection port 6 is provided on the side wall of the tower body 1. A transparent window 7 is fixedly installed at the inspection port 6 by bolts. During the exhaust gas treatment process, the working status of the spray device 2 inside the tower body 1 can be observed through the transparent window 7. The transparent window 7 can be removed to open the inspection port 6 for workers to repair the spray device 2;

[0028] In addition, a water tank 10 communicating with the interior of the tower body 1 is installed at the bottom of the tower body 1, and a water pump 8 is installed on the top surface of the water tank 10. The water inlet pipe connected to the water inlet of the water pump 8 is inserted into the bottom of the water tank 10, which can pump water from the water tank 10. The water outlet of the water pump 8 is connected to the water inlet 3 on the inner wall of the tower body 1 through the water supply pipe 12, and the water in the water tank 10 can be pumped to the water inlet 3 by the water pump 8. A rainproof box 9 for covering the water pump 8 is installed on the top surface of the water tank 10;

[0029] An air inlet 11 is provided on the bottom side wall of the tower body 1 at a position higher than the water tank 10, and the exhaust gas can enter the tower body 1 through the air inlet 11 for spraying treatment; an air outlet is provided at the top of the tower body 1, and the treated exhaust gas can be discharged from the tower body 1 through the air outlet at the top of the air inlet 11; inside the tower body 1, a grid plate and a packing layer (or swirl plate) are further provided below the spray device 2, and a grid plate and a demisting layer are provided at the top of the tower body 1;

[0030] The above structure is a conventional structure of an existing spray tower, and this application does not involve technical improvements to the above conventional structures other than the spray device 2.

[0031] like Figures 1 to 4 As shown, the spray device 2 includes an annular main pipe 2.1, on the inner side of which are mounted a plurality of spray branches 2.2. The plurality of spray branches 2.2 are evenly distributed radially about the central axis of the annular main pipe 2.1. The outer end of each spray branch 2.2 is fixedly connected to the annular main pipe 2.1, and the interior of the spray branch 2.2 communicates with the interior of the annular main pipe 2.1. The inner end of each spray branch 2.2 is threaded or welded with a sealing cap for sealing. Each spray branch 2.2 is mounted with two spray heads 2.3.

[0032] An annular track 13 is mounted on the inner sidewall of the tower body 1, and the annular main pipe 2.1 is rotatably mounted on the annular track 13. Specifically, the annular track 13 includes an annular plate, the outer end of which is welded to the inner sidewall of the tower body 1. The top surface of the annular plate defines an annular arcuate groove. The annular main pipe 2.1 is disposed within the annular arcuate groove and is rotatable within the annular arcuate groove. The annular track 13 supports the annular main pipe 2.1. Rotation of the annular main pipe 2.1 drives the spray branch pipe 2.2 and the spray head 2.3 to rotate, allowing the spray head 2.3 to approach the inspection port 6 on the sidewall of the tower body 1 from a far distance to a near distance, making it easier for workers to reach the spray head 2.3 through the inspection port 6 for maintenance and replacement.

[0033] An inlet connector 2.5 is provided on the annular main pipe 2.1. The inlet connector 2.5 is connected to the water inlet 3 via a hose 2.4 to supply water to the annular main pipe 2.1. The hose 2.4 is a metal bellows or corrugated tube. It is flexible, bendable, unbreakable, and durable. It has excess length to prevent it from being tightened when the annular main pipe 2.1 is rotated. When the annular main pipe 2.1 is rotated, the hose 2.4 can adaptively bend and stretch to prevent the rotation of the annular main pipe 2.1 from being obstructed.

[0034] The annular main pipe 2.1 and the spray branch pipe 2.2 are both made of stainless steel pipes and have a certain weight, which can prevent them from being blown by the air flow during the exhaust gas treatment process; the bottom surface of the annular main pipe 2.1 is in smooth contact with the annular arc groove on the top surface of the annular track 13, with low friction, so that workers can easily rotate the spray device 2 by hand.

[0035] like Figure 1 and Figure 3 As shown, a coaxial limiting ring 4 is provided on the inner side of the annular main pipe 2.1. The limiting ring 4 is fixed in the tower body 1 by a bracket 5. The limiting ring 4 is used to limit the spray device 2 from above to prevent the spray device 2 from leaving the annular track 13 without hindering the rotation of the spray device 2.

[0036] Specifically, the bracket 5 is an L-shaped connecting plate, one end of which is welded or connected to the limiting ring 4 by a clamp, and the other end of which is welded or connected to the inner wall of the tower body 1 by a bolt;

[0037] The bottom surface of the limiting ring 4 is in contact with the top surface of the spray branch pipe 2.2. The limiting ring 4 can block the spray branch pipe 2.2 from above to prevent the spray device 2 from moving upward, so that the spray device 2 can only rotate in the horizontal plane.

[0038] Based on the protective structure of the above-mentioned limiting ring 4, the annular main pipe 2.1 and the spray branch pipe 2.2 can also be made of plastic pipes, which are light in weight and easy to rotate.

[0039] like Figure 1 and Figure 2 As shown, a pin plate 16 is welded to the bottom surface of the annular track 13 near the inspection port 6, and a collar 14 is sleeved on the end of the spray branch pipe 2.2 near the inspection port 6. A movable plate 15 is hinged on the collar 14. The movable plate 15 and the pin plate 16 can be fixedly connected by a latch 17, thereby locking the spray device 2;

[0040] Specifically, a slot for a pin plate 16 to pass through is provided at one end of the movable plate 15 away from the collar 14. A hole for a plug pin 17 is provided on the pin plate 16. The plug pin 17 is made of a bendable metal material so that it can be bent by force after passing through the pin plate 16 to prevent it from falling off.

[0041] When it is necessary to rotate the spray device 2, the latch 17 is removed to disengage the movable plate 15 from the pin plate 16, so that the spray device 2 can be rotated by hand. When the maintenance and replacement is completed, the rotating spray device 2 is reset, and the position of the spray device 2 is locked by the locking structure composed of the above-mentioned ring 14, movable plate 15, pin plate 16 and latch 17; the installation position of the above-mentioned pin plate 16 and ring 14 is close to the inspection port 6, which is convenient for workers to operate.

[0042] like Figure 1 As shown, in the composition structure of the above-mentioned spray tower, two layers of spray devices 2 are arranged in an upper and lower distribution inside the tower body 1, two inspection ports 6 corresponding to the two spray devices 2 are provided on the side wall of the tower body 1, and an inspection port 6 for observing and inspecting the demisting layer is also provided on the top side wall of the tower body 1.

[0043] The working principle and technical effects of this embodiment are as follows:

[0044] When repairing the nozzle 2.3 in the tower body 1 of the spray tower, the transparent window 7 is removed to open the inspection port 6, and the worker reaches into the tower body 1 through the inspection port 6 to repair and replace the nozzle 2.3;

[0045] The nozzle 2.3 near the inspection port 6 is within reach of the worker and can be repaired or replaced.

[0046] For the nozzle 2.3 far away from the inspection port 6, the traditional method requires the worker to climb into the tower body 1 from the inspection port 6 to repair and replace the nozzle 2.3. In this embodiment, the worker reaches into the tower body 1 from the inspection port 6 to remove the latch 17 to release the lock on the spray device 2, and then holds the annular main pipe 2.1 or the spray branch pipe 2.2 by hand to rotate the annular main pipe 2.1, and rotates the nozzle 2.3 far away from the inspection port 6 to a position close to the inspection port 6, so that the worker can reach out and repair and replace it. The worker does not need to climb into the tower body 1 again. The worker reaches out from the inspection port 6 to repair and replace the nozzle 2.3, which is convenient for operation and avoids safety problems such as falling, collision, and inhalation of exhaust gas when entering the tower body 1.

[0047] Example 2

[0048] A spray tower that is easy to maintain the nozzle, such as Figure 5 As shown, the difference from Example 1 is that: a plurality of spray branch pipes 2.2 are parallel and spaced apart inside the annular main pipe 2.1, and both ends of each spray branch pipe 2.2 are fixedly connected to the annular main pipe 2.1, and both ends of each spray branch pipe 2.2 are in communication with the interior of the annular main pipe 2.1;

[0049] The distribution structure of the multiple spray branch pipes 2.2 in Example 1 has a channel inside for installing the support column in the tower body 1, while the distribution structure of the multiple spray branch pipes 2.2 in this Example 2 has good stability of the spray branch pipes 2.2.

[0050] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and description of the present invention.

Claims

1. A spray tower for easy maintenance of a spray head, comprising a tower body (1), a spray device (2) arranged inside the tower body (1), a water inlet (3) arranged on the inner side wall of the tower body (1), and an inspection port (6) arranged on the side wall of the tower body (1), characterized in that: The spray device (2) comprises an annular main pipe (2.1), a plurality of spray branch pipes (2.2) are installed on the inner side of the annular main pipe (2.1), the interior of the spray branch pipes (2.2) is communicated with the interior of the annular main pipe (2.1), and at least one spray head (2.3) is installed on each spray branch pipe (2.2); an annular track (13) is installed on the inner side wall of the tower body (1), and the annular main pipe (2.1) is rotatably installed on the annular track (13); a water inlet joint (2.5) is provided on the annular main pipe (2.1), and the water inlet joint (2.5) is connected to the water inlet (3) via a hose (2.4).

2. The spray tower for easy maintenance of the spray head according to claim 1, characterized in that: The annular track (13) comprises an annular plate, the outer end of which is welded to the inner wall of the tower body (1), the top surface of which is provided with an annular arc groove, the annular main pipe (2.1) is arranged in the annular arc groove, and the annular main pipe (2.1) can rotate in the annular arc groove.

3. The spray tower for easy maintenance of the spray head according to claim 2, characterized in that: The annular main pipe (2.1) and the spray branch pipe (2.2) are both made of stainless steel pipes.

4. The spray tower for easy maintenance of the spray head according to claim 2, characterized in that: A limiting ring (4) coaxial with the annular main pipe (2.1) is arranged on the inner side thereof. The limiting ring (4) is fixed in the tower body (1) via a bracket (5). The limiting ring (4) is used to limit the spray device (2) from above.

5. The spray tower for easy maintenance of the spray head according to claim 1, characterized in that: A pin plate (16) is fixed to the bottom surface of the annular track (13) near the inspection opening (6), and a sleeve ring (14) is sleeved on the end of the spray branch pipe (2.2) near the inspection opening (6). A movable plate (15) is hinged on the sleeve ring (14), and the movable plate (15) and the pin plate (16) can be fixedly connected by a latch (17).

6. The spray tower for easy maintenance of the spray head according to claim 1, characterized in that: The hose (2.4) is a metal bellows or a metal bellows.

7. The spray tower for easy maintenance of the spray head according to claim 1, characterized in that: The plurality of spray branch pipes (2.2) are evenly distributed radially on the inner side of the annular main pipe (2.1) with the central axis of the annular main pipe (2.1) as the center, and the outer end of each spray branch pipe (2.2) is fixedly connected to the annular main pipe (2.1).

8. The spray tower for easy maintenance of the spray head according to claim 1, characterized in that: The plurality of spray branch pipes (2.2) are distributed in parallel and at intervals inside the annular main pipe (2.1), and both ends of each spray branch pipe (2.2) are fixedly connected to the annular main pipe (2.1).

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