Air-cooled island rotating spray arm cleaning device

Abstract

The utility model discloses air -cooled island rotation spray arm cleaning device relates to cleaning device technical field, it includes cantilever part, spraying part, water spray pipeline and dust cover, dust cover is assembled on the spray head base, and dust cover is formed by two dustproof units of two -sided symmetry and mutual adhesion, and is locked through lock body between two dustproof units to form arc cover body, and arc cover body covers and is equipped with the hinged portion of spray head base and cantilever part, the dustproof unit of two -sided symmetry is enclosed to form arc cover body through dust cover on the surface of spraying part, and accurate cover is equipped with the hinged portion of spray head base and third cantilever, can directly block the dust that raises in the cleaning process and invades the hinged component of spraying part and cantilever part, simultaneously, the high air permeability dust screen in dustproof unit realizes air circulation while blocking dust, avoids the poor heat dissipation of spraying part and cantilever part hinged portion because of airtightness, prolongs the service life of equipment.

Description

Technical Field

[0001] This utility model relates to the field of cleaning device technology, and in particular to an air-cooled island rotary spray arm cleaning device. Background Technology

[0002] Air-cooled islands are key equipment in large industrial facilities such as thermal power plants, used for condensing exhaust steam from steam turbines. Their core principle is condensation through heat exchange between air and steam, significantly saving water resources compared to traditional water-cooled systems, making them particularly suitable for water-scarce regions. Air-cooled islands typically consist of numerous neatly arranged finned tube bundles, fans, and related support structures. As the primary heat exchange component, the surface cleanliness of the finned tube bundles directly affects heat exchange efficiency. During long-term operation, dust, sand, and industrial dust in the air gradually adhere to the fin surface, forming a dust layer. This increases thermal resistance, significantly reduces heat exchange efficiency, and consequently affects the unit's operational economy and safety. Therefore, regular cleaning and maintenance of the air-cooled island are necessary. Currently, air-cooled island cleaning primarily employs high-pressure water jet cleaning, where a spray arm atomizes high-pressure water and sprays it onto the fin surface to remove accumulated dust. However, during the cleaning process, dust washed down by the high-pressure water jet, along with suspended particles from the surrounding environment, creates a "dust re-adhesion phenomenon." This means that this dust, under the influence of airflow disturbances and water jet impact, is stirred up again and floats near the cleaning area. This dust re-adhesion not only re-attaches to the cleaned fin surface, reducing cleaning effectiveness, but more seriously, some fine dust particles are carried by the airflow into the moving parts of the spray arm device. Long-term accumulation can lead to wear, jamming, or even stagnation of these parts, affecting the flexible rotation and positioning accuracy of the spray arm, shortening equipment lifespan, and increasing maintenance costs and downtime. Therefore, effectively solving the dust re-adhesion problem during cleaning has become a key requirement for improving the performance of air-cooled island cleaning equipment.

[0003] Therefore, this utility model proposes an air-cooled island rotary spray arm cleaning device to solve the above problems. Utility Model Content

[0004] In view of the problems existing in the prior art, this utility model is proposed.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: an air-cooled island rotary spray arm cleaning device, comprising: Cantilever components; A spraying component includes a nozzle base and a spray head threadedly connected to the nozzle base. The inner cavities of the nozzle base and the spray head are connected. The nozzle base and the end of the cantilever component are rotatably connected. The connection end between the water spray pipe and the nozzle base is equipped with a threaded pipe. The water spray pipe passes through the cantilever component and connects to the nozzle base; A dust cover is mounted on the nozzle base. The dust cover consists of two symmetrical dust cover units that fit together on both sides. The two dust cover units are locked together by a locking body to form an arc-shaped cover. The arc-shaped cover is placed at the hinge of the nozzle base and the cantilever component.

[0006] Preferably, the dustproof unit package has a first arc plate and a second arc plate arranged in a semi-circular shape. The first arc plate and the second arc plate are spaced apart along the axial direction and are distributed in a concentric semi-circle. A plurality of spaced supporting ribs are connected between the first arc plate and the second arc plate. The first arc plate, the second arc plate and the supporting ribs together form a semi-circular arc-shaped cover structure.

[0007] Preferably, the first arc plate, the second arc plate, and the supporting ribs together form multiple arc-shaped cover gaps, and a dustproof net is arranged in the arc-shaped cover gaps. The dustproof net is fixedly connected to the first arc plate, the second arc plate, and the supporting ribs respectively.

[0008] Preferably, a fixing block is fixedly connected to the nozzle base, and a bolt hole is provided through the fixing block along its thickness direction. The first arc plate of the dustproof unit is provided with a mounting hole corresponding to the position of the fixing block. A screw is provided in the mounting hole, and the first arc plate is threadedly connected to the bolt hole of the fixing block after the screw passes through the mounting hole.

[0009] Preferably, a locking component is also provided at the second arc plate of the two dustproof units. The locking component includes a connecting frame plate that fits against the two sides of the second arc. Each connecting frame plate has two round slots, and a U-shaped frame plate is provided at the round slots of the two connecting frame plates. The round slots pass through the U-shaped frame plate simultaneously. A lock body is inserted in the round slot, and a locking member is rotatably hinged in the lock body.

[0010] Preferably, the lock body has a rotating cavity and a rectangular slot inside. The rectangular slot passes through the lock body and communicates with the rotating cavity. The locking component includes a torsion head, a connecting rod, and a rectangular insert plate connected in sequence. The rectangular insert plate passes through the rectangular slot and rotates to engage with the rotating cavity.

[0011] The beneficial effects of this utility model are as follows: By arranging a dust cover on the surface of the spraying component, the dust cover is formed by two symmetrical dust-proof units enclosing an arc-shaped cover, which is precisely positioned at the hinge of the nozzle base and the third cantilever. This directly prevents dust raised during the cleaning process from intruding into the hinge of the spraying component and the cantilever component. At the same time, the high-permeability dustproof net inside the dust-proof unit allows air circulation while blocking dust, avoiding poor heat dissipation at the hinge of the spraying component and the cantilever component due to sealing. This significantly reduces the risk of component jamming and wear, and extends the service life of the equipment. Attached Figure Description

[0012] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments 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.

[0013] Figure 1 This is a schematic diagram of the overall structure of the cantilever component in this utility model; Figure 2 This is a schematic diagram of the overall structure of the spraying component in this utility model; Figure 3 This is a schematic diagram of the overall structure of the dustproof unit in this utility model; Figure 4 This utility model Figure 3 Enlarged view of the A-section structure; Figure 5 This is a schematic diagram of the overall structure of the locking component in this utility model; Figure 6 This is a cross-sectional front view of the locking component in this utility model.

[0014] Explanation of reference numerals in the attached drawings: 101, Rotating base; 102, First cantilever; 103, Second cantilever; 104, Third cantilever; 201, Nozzle base; 2011, Fixing block; 2012, Screw; 202, Spray head; 300, Dust cover; 301, First arc plate; 302, Second arc plate; 303, Support rib; 304, Dustproof net; 400, Water spray pipe; 401, Threaded pipe; 500, Locking component; 501, Lock body; 5011, Rotating cavity; 5012, Rectangular long slot; 502, U-shaped frame plate; 503, Connecting frame plate; 5031, Round through slot; 504, Torsion head; 505, Rectangular insert plate; 506, Connecting round rod. Detailed Implementation

[0015] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0016] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0017] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0018] Reference Figures 1-4 As shown, this utility model provides a rotary spray arm cleaning device for air-cooled islands, which includes a cantilever component, a spray component, a water spray pipe, and a dust cover 300.

[0019] Reference Figure 1 As shown, the cantilever assembly includes a first cantilever 102, a second cantilever 103, and a third cantilever 104 hinged to each other. A rotating base 101 is disposed at the bottom of the first cantilever 102, and the rotating base 101 drives the first cantilever 102 to rotate around the axis of the rotating base 101. A first hinge shaft is arranged between the second cantilever 103 and the first cantilever 102. One end of the second cantilever 103 is hinged to the end of the first cantilever 102 away from the rotating base 101 via the first hinge shaft, allowing the second cantilever 103 to rotate around the first cantilever 104. A hinge axis rotates relative to the first cantilever 102; a third cantilever 104 is arranged between the second cantilever 103 and the second cantilever 103 at the second hinge axis. One end of the third cantilever 104 is hinged to the end of the second cantilever 103 away from the first cantilever 102 through the second hinge axis, so that the third cantilever 104 can rotate relative to the second cantilever 103 around the second hinge axis. Through the first cantilever 102, the second cantilever 103, the third cantilever 104 and the rotating base 101, the cantilever components can achieve multi-degree-of-freedom attitude adjustment in three-dimensional space.

[0020] Reference Figure 1 and Figure 2 As shown, the spraying component includes a nozzle base 201 and a spray head 202 threadedly connected to the nozzle base 201. The inner cavities of the nozzle base 201 and the spray head 202 are connected. A liquid inlet is provided on one side of the nozzle base 201, and a liquid inlet is provided on the opposite side. The spray head 202 is assembled at the liquid inlet / outlet of the nozzle base 201. The end of the spray head 202 away from the inner cavity of the nozzle base 201 has a conical structure, and dense atomizing nozzles are evenly distributed on its end face. After the liquid medium is guided by the inner cavity of the nozzle base 201 and the spray head 202, it forms atomized droplets of different sizes and is sprayed out from different atomizing nozzles.

[0021] Reference Figure 2 As shown, the water spray pipe passes through the cantilever component and is connected to the nozzle base 201. The water spray pipe 400 is connected to the liquid inlet of the nozzle base 201 to introduce the liquid medium to be sprayed into the inner cavity. The end of the water spray pipe 400 away from the cantilever component is connected to a high-pressure conveying device (not shown) to pump or pressurize the liquid medium to be sprayed into the pipe.

[0022] Furthermore, the nozzle base 201 and the third cantilever 104 are rotatably connected at the end opposite to the second cantilever 103, and the connection end between the water spray pipe 400 and the nozzle base 201 is provided with a threaded pipe 401. The threaded pipe 401 at the connection end between the water spray pipe 400 and the nozzle base 201 is a flexible threaded joint with a sealing layer to meet the sealing requirements when the nozzle base 201 rotates and the angle is adjusted.

[0023] Reference Figure 1 and Figure 3 As shown, the dust cover 300 is mounted on the nozzle base 201. The dust cover 300 consists of two symmetrical and closely fitted dust-proof units on both sides. The two dust-proof units are locked together by a locking body 501 to form an arc-shaped cover, which covers the hinge between the nozzle base 201 and the third cantilever 104. When the air-cooled island is sprayed for cleaning, dust on the surface of the air-cooled island will experience backflow. If the backflowing dust enters the hinge between the nozzle base 201 and the third cantilever 104, it will cause the rotation of the nozzle base 201 and the third cantilever 104 to become stuck. The dust cover 300 can effectively prevent dust from entering and avoid the stuck situation.

[0024] In one embodiment, the dustproof unit includes a first arc plate 301 and a second arc plate 302, both arranged in a semi-circular shape. The first arc plate 301 and the second arc plate 302 are spaced apart along the axial direction and are distributed in a concentric semi-circular shape. A plurality of spaced support ribs 303 are connected between the first arc plate 301 and the second arc plate 302. The first arc plate 301, the second arc plate 302 and the support ribs 303 together form a semi-circular arc-shaped cover structure. The edges of the semi-circular arc-shaped cover structure fit together and are fixed by a locking body 501 to form a complete arc-shaped cover.

[0025] In one embodiment, the first arc plate 301, the second arc plate 302, and the supporting rib 303 together enclose a plurality of arc-shaped cover gaps. A dustproof net 304 is arranged in the arc-shaped cover gaps. The dustproof net 304 is made of nylon mesh with high air permeability. The dustproof net 304 is fixedly connected to the first arc plate 301, the second arc plate 302, and the supporting rib 303 respectively. The dustproof net 304 can not only block dust from entering the hinge, but also allow air to circulate through the mesh.

[0026] Reference Figure 3 As shown, a fixing block 2011 is fixedly connected to the nozzle base 201. Bolt holes are provided through the fixing block 2011 along its thickness direction. The first arc plate 301 of the dustproof unit is provided with mounting holes corresponding to the position of the fixing block 2011. Screws 2012 are provided in the mounting holes. The first arc plate 301 is threadedly connected to the bolt holes of the fixing block 2011 after the screws 2012 pass through the mounting holes, so as to realize the fixed assembly of the first arc plate 301 and the connector.

[0027] Reference Figure 4 and Figure 6 As shown, each dustproof unit has a corresponding circular through hole on its second arc plate 302. When two symmetrical dustproof units are attached, the circular through holes on their second arc plates 302 correspond one-to-one. The locking component 500 is installed through the corresponding circular through hole to achieve relative fixation of the two dustproof units. There are two sets of locking components 500, and the two sets of locking components 500 are distributed at intervals along the arc length direction of the second arc plate 302.

[0028] Specifically, the locking component 500 includes a lock body 501 and a twisting head 504 that fit together. The lock body 501 passes through two corresponding circular through holes and is fixedly connected to the twisting head 504 to clamp and lock the second arc plates 302 of the two dustproof units. Specifically, the locking component 500 includes connecting frame plates 503 that fit against the two sides of the second arc. Each connecting frame plate 503 has two through slots 5031, and a U-shaped frame plate 502 is mounted at the through slots 5031 of the two connecting frame plates 503. The through slots 5031 pass through the U-shaped frame plate 502 simultaneously. A lock body 501 is inserted in the through slots 5031, and a locking element is rotatably hinged in the lock body 501.

[0029] The lock body 501 has a rotating cavity 5011 and a rectangular slot 5012 inside. The rectangular slot 5012 passes through the lock body 501 and is connected to the rotating cavity 5011. The locking component includes a torsion head 504, a connecting rod 506 and a rectangular insert 505 connected in sequence. The rectangular insert 505 passes through the rectangular slot 5012 and is rotated and engaged in the rotating cavity 5011.

[0030] Working principle: The external high-pressure delivery device pressurizes the liquid medium to be sprayed and then delivers it to the spraying component through the water spray pipe 400. The liquid medium passes through the first cantilever 102, the second cantilever 103, and the third cantilever 104 of the cantilever component in sequence through the water spray pipe 400, and finally enters the liquid inlet of the nozzle base 201 through the flexible threaded joint with a sealing layer, and then flows through the inner cavity of the nozzle base 201 to the spray head 202. During the conveying process, the rotating base 101 drives the first cantilever 102 to rotate around its axis. The first cantilever 102 and the second cantilever 103 rotate relative to each other through the first hinge shaft, and the second cantilever 103 and the third cantilever 104 rotate relative to each other through the second hinge shaft. The cooperation of these three components allows the spraying component to cover different cleaning areas of the air-cooled island in three-dimensional space. At the same time, the rotational connection between the nozzle base 201 and the third cantilever 104, combined with the angle compensation of the flexible threaded joint, further expands the adjustment range of the spray head 202, ensuring comprehensive coverage of the air-cooled island surface. When the liquid medium enters the spray head 202, the dense atomizing nozzle forms atomized droplets of varying sizes, which are sprayed out at high speed to wash away dirt from the surface of the air-cooled island. During this process, two symmetrical dustproof units are fixed by locking components 500 to form an arc-shaped cover, which covers the hinge between the spray head base 201 and the third cantilever 104. Dust generated on the surface of the air-cooled island during cleaning is blocked by the arc-shaped cover. At the same time, the dustproof net 304 blocks dust while ensuring air circulation, preventing the hinge from getting stuck due to dust accumulation or poor heat dissipation due to airtightness, and ensuring smooth rotation of the cantilever and the spray head base 201. The connecting frame plate 503 and the U-shaped frame plate are fixed together by a locking body 501. The rectangular insert plate 505 of the locking member passes through the rectangular slot 5012 of the locking body 501 and rotates and engages within the rotating cavity 5011, ensuring that the two dustproof units fit tightly together and effectively preventing dust from entering. In addition, the dustproof unit is threadedly connected to the fixing block 2011 on the nozzle base 201 via the first arc plate 301, ensuring that the dust cover 300 does not loosen during device operation and continues to provide protection. Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change. Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other. Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An air-cooled island rotary spray arm cleaning device, characterized in that, include: Cantilever components; The spraying component includes a nozzle base (201) and a spray head (202) threadedly connected to the nozzle base (201). The inner cavities of the nozzle base (201) and the spray head (202) are connected. The nozzle base (201) and the end of the cantilever component are rotatably connected. The connection end of the water spray pipe (400) and the nozzle base (201) is provided with a threaded pipe (401). A water spray pipe (400) passes through the cantilever component and is connected to the nozzle base (201). A dust cover (300) is mounted on a nozzle base (201). The dust cover (300) is composed of two dust cover units that are symmetrical on both sides and fit together. The two dust cover units are locked together by a locking body (501) to form an arc-shaped cover. The arc-shaped cover is placed at the hinge between the nozzle base (201) and the cantilever component.

2. The air-cooled island rotary spray arm cleaning device as described in claim 1, characterized in that: The dustproof unit package consists of a first arc plate (301) and a second arc plate (302) arranged in a semi-circular shape. The first arc plate (301) and the second arc plate (302) are spaced apart along the axial direction and are distributed in a concentric semi-circle. A plurality of spaced support ribs (303) are connected between the first arc plate (301) and the second arc plate (302). The first arc plate (301), the second arc plate (302) and the support ribs (303) together form a semi-circular arc-shaped cover structure.

3. The air-cooled island rotary spray arm cleaning device as described in claim 2, characterized in that: The first arc plate (301), the second arc plate (302), and the supporting rib (303) together form multiple arc-shaped cover gaps. A dustproof net (304) is arranged in the arc-shaped cover gaps. The dustproof net (304) is fixedly connected to the first arc plate (301), the second arc plate (302), and the supporting rib (303).

4. The air-cooled island rotary spray arm cleaning device as described in claim 3, characterized in that: A fixing block (2011) is fixedly connected to the nozzle base (201). The fixing block (2011) has bolt holes through it along its thickness direction. The first arc plate (301) of the dustproof unit has mounting holes corresponding to the fixing block (2011). Screws (2012) are installed in the mounting holes. The first arc plate (301) is threadedly connected to the bolt holes of the fixing block (2011) after the screws (2012) pass through the mounting holes.

5. The air-cooled island rotary spray arm cleaning device as described in claim 1, characterized in that: The two dustproof units are also provided with a locking component (500) at the second arc plate. The locking component (500) includes a connecting frame plate (503) that fits against the two sides of the second arc. Each connecting frame plate (503) has two through slots (5031), and a U-shaped frame plate (502) is provided at the through slots (5031) of the two connecting frame plates (503). The through slots (5031) pass through the U-shaped frame plate (502) simultaneously. A lock body (501) is inserted in the through slots (5031), and a locking member is rotatably hinged in the lock body (501).

6. The air-cooled island rotary spray arm cleaning device as described in claim 5, characterized in that: The lock body (501) has a rotating cavity (5011) and a rectangular slot (5012) inside. The rectangular slot (5012) passes through the lock body (501) and is connected to the rotating cavity (5011). The locking component includes a torsion head (504), a connecting rod (506) and a rectangular insert (505) connected in sequence. The rectangular insert (505) passes through the rectangular slot (5012) and rotates and engages in the rotating cavity (5011).

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