Spraying equipment for column insulator

Abstract

The utility model belongs to the field of spraying equipment, and particularly relates to spraying equipment for a column insulator. The utility model provides spraying equipment for a column type insulator, which comprises a paint spraying pipe, a collecting device is arranged outside the paint spraying pipe, the collecting device is fixedly connected with the paint spraying pipe, and the collecting device is used for collecting a mixture of paint and air scattered around a spraying port of the paint spraying pipe; and the filtering device is used for filtering the coating and air mixture collected by the collecting device. When the paint spraying pipe sprays the RTV paint on the surface of the insulator, part of the RTV paint diffuses into the air, meanwhile, the RTV paint volatilizes volatile organic compounds when being cured on the surface of the insulator, and at the moment, the collecting device is started to collect mixed air containing the volatile organic compounds and the RTV paint; and volatile organic compounds in the mixed air and the RTV coating in the air are filtered out through the filtering device, so that clean air is discharged, and the air is prevented from being polluted, and the body health of operators is prevented from being harmed.

Description

Technical Field

[0001] This utility model belongs to the field of spraying equipment, and in particular relates to a spraying equipment for column insulators. Background Technology

[0002] RTV coating of post insulators in substations is a method to improve the hydrophobicity of insulators by spraying RTV coating on their surface. It is an effective and necessary anti-pollution measure. Substation insulators work outdoors for a long time, and dirt will accumulate on their surface. With prolonged exposure to wind and sun, the RTV coating on the surface will also peel off, which can lead to flashover accidents. Regularly cleaning and spraying anti-pollution flashover coating on the insulators in substations is an effective means to maintain the insulation level of the insulators, prevent flashover accidents, and ensure the operation of the power grid.

[0003] The existing patent CN114130568B discloses a substation insulator spraying device and its construction method, including a base and a spray gun head. A lifting platform is set on the base, and a guide column and a hydraulic telescopic cylinder are set between the base and the lifting platform. A support rod is set on the upper surface of the lifting platform. A connecting seat is set on the end of the support rod away from the lifting platform. A drive motor is set on the connecting seat. The output shaft of the drive motor extends into the connecting seat and is connected to a connecting shaft inside the connecting seat. The other end of the connecting shaft extends out of the connecting seat and is connected to a rotating disk. A connecting rod is set on the end of the rotating disk away from the connecting seat. A spray gun head is set on the end of the connecting rod away from the rotating disk. There are two spray gun heads. Each spray gun head includes a spray tube and a spray nozzle. The spray tube is an arc-shaped spray tube. The opening of the spray tube faces the insulator to be sprayed. Spray nozzles are evenly distributed on the side of the spray tube facing the insulator. This invention can save labor, speed up the spraying process, and improve work efficiency. However, volatile organic compounds (VOCs) are generated during the curing process of RTV coating. These VOCs evaporate into the air, and the RTV coating during the spraying process does not completely cover the surface of the column insulator but diffuses into the air, affecting air quality. Utility Model Content

[0004] The purpose of this invention is to address the aforementioned technical problems by providing a spraying device for column insulators that collects and filters volatile organic compounds and airborne coatings during the coating curing process, thereby protecting the environment and the health of workers during spraying.

[0005] In view of this, the present invention provides a spraying device for column insulators, characterized in that it includes a paint spraying pipe, and the paint spraying pipe is externally provided with:

[0006] A collection device is fixedly connected to the paint spray pipe and is used to collect the paint and air mixture that spills out around the spray nozzle of the paint spray pipe.

[0007] A filtration device connected to a collection device, the filtration device being used to filter a mixture of paint and air collected by the collection device.

[0008] In this technical solution, the material used for spraying insulators is generally RTV coating. When the spray gun sprays RTV coating onto the surface of the insulator, some of the RTV coating diffuses into the air. At the same time, when the RTV coating cures on the surface of the insulator, it also volatilizes volatile organic compounds. At this time, the collection device is turned on to collect the mixed air containing volatile organic compounds and RTV coating. Then, the volatile organic compounds and RTV coating in the mixed air are filtered out by the filtration device, thereby releasing clean air and avoiding air pollution that could harm the health of the operators.

[0009] Furthermore, a spray nozzle is fixedly installed at the front end of the paint spray tube, and the spray nozzle is conical.

[0010] In this technical solution, the use of a conical nozzle reduces the spraying area, making it easier for a collector to collect the RTV coating that has diffused into the air.

[0011] Furthermore, the collection device includes:

[0012] A guide tube is fixedly installed outside the paint spray tube and is connected through the paint spray tube. The inner diameter of the guide tube is larger than the outer diameter of the paint spray tube.

[0013] A collector is disposed on a guide tube and threadedly connected to the guide tube; the diameter of the collector is larger than the outer diameter of the paint spray tube.

[0014] A collection box, the side wall of which is provided with a flexible hose, and the collection box and the guide tube are connected by the flexible hose thread;

[0015] A blower is fixedly installed above the collection box.

[0016] In this technical solution, the blower starts working and generates suction inside the collection box. Through the connection of the hose and guide tube, suction is also generated inside the collector. Under the action of suction, the collector collects the mixed air during the spraying process of the paint spray pipe. The mixed air is collected in the collection box through the guide tube and hose.

[0017] Furthermore, a one-way valve is provided on the hose.

[0018] In this technical solution, the one-way valve allows the mixed air to flow into the collection box in one direction, preventing the mixed air from flowing back to the collector.

[0019] Furthermore, the collection box includes a filter box and a water filter box, the water filter box being filled with clean water, and the filtration device includes:

[0020] A guide plate is fixedly installed on the inner wall of the water filter tank. The guide plate is located in the path through which the mixed air is introduced. The guide plate is used to prolong the residence time of the mixed air in the water passing through the water filter tank.

[0021] A separation filter is fixedly mounted on a filter box and is used to separate the paint from the mixed air.

[0022] An absorption filter is disposed above a separating filter and is used to absorb volatile organic compounds in the mixed air.

[0023] In this technical solution, mixed air enters the collection box through a hose. Under the obstruction of the guide plate, the mixed air first passes through the bottom of the water and then diffuses to the water surface. The RTV coating in the mixed air is solidified into small particles that float on the water surface, allowing most of the RTV coating to be separated from the mixed air. The water-soluble volatile organic compounds in the mixed air also remain in the water. Under the action of suction, the mixed air diffused on the water surface enters the separation filter, which separates the RTV coating that was not separated from the mixed air. The remaining mixed air passes through the absorption filter, which absorbs the remaining volatile organic compounds. Finally, the clean air is discharged from the top of the filter box.

[0024] Furthermore, the filter box and the water filter box are detachably connected, and four corresponding through holes are opened on the filter box and the water filter box, and the through holes of the filter box and the water filter box are connected by positioning pins.

[0025] In this technical solution, when using the collection box, the through hole is fixed with a positioning pin, so that the filter box and the water filter box become a sealed whole. When it is necessary to clean the collection box, the positioning pin is removed from the through hole, the filter box and the water filter box are separated, and cleaning is performed.

[0026] Furthermore, the separation filter includes beads and bead plates, the bead plates have mesh holes, and multiple layers of beads are arranged between two bead plates. The diameter of the beads is larger than the diameter of the mesh holes, and gaps are formed between the beads. The beads are made of a hydrophilic material that is not easily adsorbed by RTV coatings.

[0027] In this technical solution, the beads are made of ceramic materials, such as silicon carbide. Under the action of suction, the water in the water tank will enter the separation filter. Since the beads are hydrophilic, the water will be absorbed by the beads and a water film will be formed on the surface of the beads. The RTV coating is not easily absorbed by the beads and is incompatible with water. Therefore, the water and RTV coating are separated by the beads. The mixed air carries the RTV coating through the gaps between the beads and the mesh on the bead plate to diffuse into the absorption filter.

[0028] Furthermore, a filter screen is installed inside the water filter tank. The filter screen is positioned above the clean water and is used to prevent paint particles floating on the water surface from being sucked into the separation filter.

[0029] In this technical solution, under the action of suction, the water, small particles of RTV coating on the water surface and mixed air in the water tank float to the surface. Under the obstruction of the filter screen, the small particles of RTV coating cannot pass through the filter screen, while the water and mixed air are filtered out and enter the separation filter.

[0030] Furthermore, the filter box is provided with a storage slot, and the absorption filter is housed in the storage slot, with activated carbon disposed inside the absorption filter.

[0031] In this technical solution, activated carbon can absorb volatile organic compounds. When it is necessary to replace the absorbent, the absorption filter can be pulled out of the storage tank for easy replacement.

[0032] Furthermore, a recycling bag is provided inside the collector.

[0033] In this technical solution, when the RTV coating in the inhalation collector is returned, the RTV coating is induced to flow into the recovery bag, thereby collecting the RTV coating remaining in the return air into the recovery bag.

[0034] The beneficial effects of this utility model are: 1. This utility model collects and filters volatile organic compounds and RTV coatings in the air during the curing process, which can protect the environment and protect the health of workers during spraying. Attached Figure Description Attached image description:

[0036] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0037] Figure 2 This is a schematic diagram showing the flow direction of the RTV coating and air mixture of this utility model;

[0038] Figure 3 This is a cross-sectional structural diagram of the filtration device of this utility model;

[0039] Figure 4 This is an exploded structural diagram of the filtration device of this utility model;

[0040] Figure 5 The schematic diagram of the absorption filter structure of this utility model shows: 1. Spray pipe; 2. Collector; 3. Guide pipe; 4. Flexible hose; 5. One-way valve; 6. Collection box; 7. Blower; 8. Spray nozzle; 9. Recycling bag; 10. Guide plate; 11. Filter screen; 12. Separation filter; 13. Absorption filter; 14. Beads; 15. Bead plate; 16. Filter box; 17. Filter housing; 18. Through hole; 19. Positioning pin; 20. Storage tank. Detailed Implementation

[0041] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0042] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0043] It should be noted that the terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and are not limited in number; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0044] It should be noted that in the description of this application, the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0045] It should be noted that, in this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0046] Example 1:

[0047] like Figure 1-5 As shown, this utility model provides a spraying device for column insulators, including a paint spraying pipe 1, wherein the paint spraying pipe 1 is externally provided with:

[0048] A collection device is fixedly connected to the paint spray pipe 1, and the collection device is used to collect the paint and air mixture that spills around the spray nozzle of the paint spray pipe 1.

[0049] A filtration device connected to a collection device, the filtration device being used to filter a mixture of paint and air collected by the collection device.

[0050] The material used for spraying insulators is generally RTV coating. When spraying RTV coating onto the surface of the insulator using spray nozzle 1, some of the RTV coating diffuses into the air. At the same time, when the RTV coating cures on the surface of the insulator, it also releases volatile organic compounds. At this time, the collection device is turned on to collect the mixed air containing volatile organic compounds and RTV coating. Then, the volatile organic compounds and RTV coating in the mixed air are filtered out by the filtration device, thereby releasing clean air and avoiding air pollution that could harm the health of the operators.

[0051] like Figure 2 As shown, the blue arrow represents the flow direction of the RTV paint and air mixture, the green arrow represents the RTV paint return direction, and the red arrow represents the RTV paint spraying direction.

[0052] A spray nozzle 8 is fixedly installed at the front end of the paint spray tube 1, and the spray nozzle 8 is conical.

[0053] Using a conical nozzle 8 makes the spraying area smaller, making it easier for the collector 2 to collect the RTV paint that has diffused into the air.

[0054] The collection device includes:

[0055] Guide tube 3, the guide tube 3 is fixedly installed outside the paint spray tube 1, the guide tube 3 is connected through the paint spray tube 1, and the inner diameter of the guide tube 3 is larger than the outer diameter of the paint spray tube 1;

[0056] Collector 2 is disposed on guide tube 3 and threadedly connected to guide tube 3. The diameter of collector 2 is larger than the outer diameter of paint spray tube 1.

[0057] Collection box 6, the side wall of the collection box 6 is provided with a flexible hose 4, and the collection box 6 is threadedly connected to the guide tube 3 through the flexible hose 4;

[0058] Blower 7 is fixedly installed above the collection box 6.

[0059] The blower 7 starts working and generates suction inside the collection box 6. Through the connection of the hose 4 and the guide tube 3, suction is also generated inside the collector 2. Under the action of suction, the collector 2 collects the mixed air during the spraying process of the paint spray pipe 1. The mixed air is collected in the collection box 6 through the guide tube 3 and the hose 4.

[0060] A one-way valve 5 is provided on the hose 4.

[0061] One-way valve 5 allows the mixed air to flow into the collection box 6 in one direction, preventing the mixed air from flowing back to the collector 2.

[0062] The collection box 6 includes a filter box 17 and a water filter box 16, the water filter box 16 is filled with clean water, and the filtration device includes:

[0063] Guide plate 10, the guide plate 10 is fixedly installed on the inner wall of the water filter tank 16, the guide plate 10 is in the path of mixed air introduction, the guide plate 10 is used to prolong the residence time of mixed air in the water passing through the water filter tank 16;

[0064] Separation filter 12 is fixedly mounted on filter box 17, and separation filter 12 is used to separate the paint in the mixed air;

[0065] An absorption filter 13 is disposed above the separation filter 12, and the absorption filter 13 is used to absorb volatile organic compounds in the mixed air.

[0066] Mixed air enters the collection box 6 through hose 4. Under the obstruction of guide plate 10, the mixed air first passes through the bottom of the water and then diffuses to the water surface. The RTV coating in the mixed air is solidified in the water into small particles that float on the water surface, causing most of the RTV coating to be separated from the mixed air. The water-soluble part of the volatile organic compounds in the mixed air will also remain in the water. Under the action of suction, the mixed air diffused on the water surface enters the separation filter 12, so that the RTV coating that was not separated in the mixed air is separated by the separation filter 12. The remaining mixed air absorbs the remaining volatile organic compounds through the absorption filter 13. Finally, the clean air is discharged from the top of the filter box 17.

[0067] The filter box 17 and the water filter box 16 are detachably connected. The filter box 17 and the water filter box 16 have four corresponding through holes 18. The through holes 18 of the filter box 17 and the water filter box 16 are connected by positioning pins 19.

[0068] When using the collection box 6, the positioning pin 19 is used to fix the through hole 18, so that the filter box 17 and the water filter box 16 become a sealed whole. When it is necessary to clean the collection box 6, the positioning pin 19 is removed from the through hole 18, the filter box 17 and the water filter box 16 are separated, and the cleaning is carried out.

[0069] The separation filter 12 includes beads 14 and bead plates 15. The bead plates 15 have mesh holes. Multiple layers of beads 14 are arranged between two bead plates 15. The diameter of the beads 14 is larger than the diameter of the mesh holes, and gaps are formed between the beads 14. The beads 14 are made of a hydrophilic material that is not easily adsorbed by RTV coatings.

[0070] The beads 14 are made of ceramic materials, such as silicon carbide. Under the action of suction, the water in the water tank 16 will enter the separation filter 12. Since the beads 14 are hydrophilic, the water will be absorbed by the beads 14 and a water film will be formed on the surface of the beads 14. The RTV coating is not easily absorbed by the beads 14 and is incompatible with water. Therefore, the water and the RTV coating are separated by the beads 14. The mixed air carries the RTV coating through the gaps of the beads 14 and the mesh on the bead plate 15 to diffuse into the absorption filter 13.

[0071] The water filter tank 16 is equipped with a filter screen 11, which is positioned above the clean water. The filter screen 11 is used to prevent paint particles floating on the water surface from being sucked into the separation filter 12.

[0072] Under the action of suction, the water, small particles of RTV coating on the water surface and mixed air in the water tank 16 float to the surface. Under the obstruction of the filter screen 11, the small particles of RTV coating cannot pass through the filter screen 11, while the water and mixed air are filtered out and enter the separation filter 12.

[0073] The filter box 17 is provided with a storage slot 20, and the absorption filter 13 is housed in the storage slot 20. Activated carbon is provided in the absorption filter 13.

[0074] Activated carbon can absorb volatile organic compounds. When it is necessary to replace the absorbent, the absorption filter 13 can be pulled out of the storage tank 20 for easy replacement.

[0075] A recycling bag 9 is provided on the inside of the collector 2.

[0076] When the RTV paint in the suction collector 2 is returned, the RTV paint is induced to flow into the recovery bag 9, thereby collecting the RTV paint remaining in the return air into the recovery bag 9. The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art, under the guidance of this application, can make many other forms without departing from the spirit and scope of the claims, all of which fall within the protection scope of this application.

Claims

1. A spraying device for column insulators, characterized in that, Includes a paint spray pipe (1), and the paint spray pipe (1) is externally provided with: A collection device is fixedly connected to the paint spray pipe (1). The collection device is used to collect the paint and air mixture that spills out around the spray nozzle of the paint spray pipe (1). The collection device includes a guide pipe (3), a collector (2), a collection box (6), and a blower (7). The guide pipe (3) is fixedly installed outside the paint spray pipe (1) and is connected through the paint spray pipe (1). The inner diameter of the guide pipe (3) is larger than the outer diameter of the paint spray pipe (1). The collector (2) is fixedly connected to the paint spray pipe (1). The collector (2) is set on the guide tube (3), and the collector (2) is threadedly connected to the guide tube (3). The diameter of the collector (2) is larger than the outer diameter of the paint spray tube (1). The side wall of the collection box (6) is provided with a hose (4). The collection box (6) is threadedly connected to the guide tube (3) through the hose (4). The collection box (6) includes a filter box (17) and a water filter box (16). The water filter box (16) is filled with clean water. The blower (7) is fixedly set above the collection box (6). A filtration device is connected to a collection device. The filtration device is used to filter the paint and air mixture collected by the collection device. The filtration device includes a guide plate (10), a separation filter (12), and an absorption filter (13). The guide plate (10) is fixedly installed on the inner wall of the water filter box (16). The guide plate (10) is on the path through which the mixed air enters. The guide plate (10) is used to prolong the residence time of the mixed air in the water passing through the water filter box (16). The separation filter (12) is fixedly installed on the filter box (17). The separation filter (12) is used to separate the paint in the mixed air. The absorption filter (13) is installed above the separation filter (12). The absorption filter (13) is used to absorb volatile organic compounds in the mixed air.

2. The spraying equipment for column insulators according to claim 1, characterized in that, The front end of the paint spray pipe (1) is fixedly provided with a spray head (8), which is conical.

3. The spraying equipment for column insulators according to claim 2, characterized in that, A one-way valve (5) is provided on the hose (4).

4. The spraying equipment for column insulators according to claim 1, characterized in that, The filter box (17) is detachably connected to the water filter box (16). Four corresponding through holes (18) are opened on the filter box (17) and the water filter box (16). The through holes (18) of the filter box (17) and the water filter box (16) are connected by positioning pins (19).

5. The spraying equipment for column insulators according to claim 1, characterized in that, The separation filter (12) includes beads (14) and bead plates (15). The bead plates (15) have mesh holes. Multiple layers of beads (14) are arranged between the two bead plates (15). The diameter of the beads (14) is larger than the diameter of the mesh holes. Gaps are formed between the beads (14). The beads (14) are made of a hydrophilic material that is not easily adsorbed by RTV coatings.

6. The spraying equipment for column insulators according to claim 1, characterized in that, The filter tank (16) is equipped with a filter screen (11), which is positioned above the clean water. The filter screen (11) is used to block paint particles floating on the water surface from being sucked into the separation filter (12).

7. The spraying equipment for column insulators according to claim 1, characterized in that, The filter box (17) is provided with a storage slot (20), and the absorption filter (13) is housed in the storage slot (20). Activated carbon is provided in the absorption filter (13).

8. The spraying equipment for column insulators according to claim 1, characterized in that, A recycling bag (9) is provided inside the collector (2).

Images