Dehumidification device for transformer substation

Abstract

The utility model relates to a dehumidification device for a transformer substation, which relates to the technical field of transformer substations and comprises a dehumidification compass arranged at the top of the transformer substation, and an air inlet pipe and an air outlet pipe which are arranged at two side ends of the dehumidification compass and are respectively communicated with an air inlet and an air outlet of the transformer substation, the dehumidifying compass comprises a hollow compass body fixed at the top of the transformer substation, a middle shaft coaxially and rotatably arranged in the middle of the compass body and a plurality of partition plates vertically and circumferentially uniformly arranged at the peripheral side end of the middle shaft at intervals, and the adjacent partition plates are separated in the compass body to form storage cavities for placing a drying agent; the lower end face of the disc body is provided with two sets of through holes communicating the air inlet pipe and the air outlet pipe with the two storage cavities distributed oppositely, and the upper end face of the disc body is provided with an air inlet hole and an air outlet hole communicating with the storage cavities on the two sides. The dehumidifying compass has the beneficial effects that the dehumidifying compass can be continuously recycled and is more convenient.

Description

Technical Field

[0001] This utility model relates to the field of substation technology, and in particular to a dehumidification device for substations. Background Technology

[0002] A substation is a location in a power system that transforms voltage and current, receives electrical energy, and distributes it. Substations within power plants are step-up substations, whose function is to step up the voltage of the electrical energy generated by generators before feeding it into the high-voltage power grid. The electrical equipment in a substation is divided into primary and secondary equipment. Primary equipment refers to equipment that directly produces, transmits, distributes, and uses electrical energy, mainly including transformers, high-voltage circuit breakers, disconnect switches, busbars, surge arresters, capacitors, and reactors. Secondary equipment in a substation refers to equipment that measures, monitors, controls, and protects the operating conditions of the primary equipment and system. It mainly consists of relay protection devices, automatic devices, measurement and control devices, metering devices, automation systems, and DC equipment that provides power to the secondary equipment.

[0003] Whether it's primary or secondary equipment, a dry working environment is required. Therefore, conventional substations need to be equipped with dehumidification devices. In high-temperature and high-humidity environments, outside air needs to continuously enter the substation for cooling, causing the dehumidification device to operate continuously for a long time, which can easily lead to a decrease in the effectiveness of the dehumidification device with use. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] In view of the above-mentioned shortcomings and deficiencies of the prior art, this utility model provides a dehumidification device for substations, which solves the technical problem that the dehumidification effect of the dehumidification device is easily reduced with use when the dehumidification device is in continuous operation for a long time.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the main technical solutions adopted by this utility model include:

[0008] This utility model provides a dehumidification device for a substation, including a dehumidification compass disposed on the top of the substation and an air inlet pipe and an air outlet pipe disposed on both sides of the dehumidification compass and respectively connected to the air inlet and air outlet of the substation. The dehumidification compass includes a hollow disc body fixed to the top of the substation, a central axis coaxially rotatably disposed in the middle of the disc body, and multiple partitions evenly spaced vertically around the central axis. Adjacent partitions are separated within the disc body to form storage cavities for desiccant. The lower end face of the disc body has two sets of through holes connecting the air inlet pipe and the air outlet pipe to the two storage cavities distributed opposite to each other. The upper end face of the disc body has an air inlet hole and an air outlet hole respectively connecting the two storage cavities.

[0009] This utility model provides a dehumidification device for substations. When dehumidifying a substation, the dehumidification compass is fixed to the top of the substation. One end of the air inlet pipe and the air outlet pipe are connected to the air inlet and air outlet of the substation, respectively. At this time, the air inlet draws air into the substation, and the outside air enters through the air inlet. When it enters the receiving cavity, the moisture in the air is absorbed by the desiccant. The dry air enters the air inlet pipe through the lower through-hole and finally enters the substation. The dry air absorbs the heat generated by the operation of various components in the substation and is discharged through the air outlet pipe and the air outlet. After a period of time, the central shaft is rotated, thereby changing the position of the desiccant. The dry desiccant moves to align with the air inlet, while the desiccant that has absorbed more moisture is moved to align with the air outlet. At this time, the high-temperature air discharged along the air outlet pipe will pass through the moisture-containing desiccant and separate the moisture in the desiccant, so that the dehumidification compass can be used continuously and conveniently.

[0010] Optionally, a chassis connected to the lower side of the partition is coaxially disposed at the lower end of the central shaft. Ventilation holes are evenly arrayed on the chassis. The chassis body includes a cylinder and a cover detachably disposed on the top of the cylinder. A square hole is coaxially disposed at the lower end of the central shaft. A drive rod driven by a motor and vertically inserted into the square hole is rotatably disposed at the lower end of the cylinder.

[0011] By setting a base at the lower end of the central shaft, the desiccant is placed on the upper end of the base after being put into the storage cavity. This allows the central shaft to be removed from the tray along with the base and partition, making it convenient to replace the desiccant. At the same time, the motor drives the drive rod to rotate, and the drive rod is directly inserted into the square hole to drive the central shaft to rotate. This allows the rotation of the central shaft to be electrically controlled, eliminating the need for manual operation and making it more convenient.

[0012] Optionally, the upper surface of the disc cover is provided with two air hoods, the openings of the two air hoods are arranged in opposite directions and are respectively aligned with the air inlet and the air outlet.

[0013] By installing two air hoods at the top of the panel cover, with the openings of the two air hoods facing opposite directions, the directions of drawing external air into the substation and venting air from the substation are reversed, thereby reducing mutual interference.

[0014] Optionally, the air inlet end of the air shroud connected to the air inlet and the air outlet end of the air shroud connected to the air outlet are respectively detachably connected to a filter screen.

[0015] By detachably connecting a filter screen to the opening end of the air hood, external air is filtered before entering the dehumidifier, thus removing impurities that fly with the air and reducing the impact on the repeated use of desiccant in the various compartments inside the dehumidifier. After a period of use, the filters on both air hoods can be replaced, and the original inlet filter can be installed on the outlet side. This allows the air discharged from inside to clean the impurities adhering to the filter surface, enabling the filter to be reused continuously and more conveniently.

[0016] Optionally, the filter screen is annular, the axis of the filter screen is coaxial with the disc body, the opening of the air hood is arc-shaped and abuts against the inner peripheral wall of the filter screen, and the filter screen is rotatably connected to the upper end face of the disc cover about its own axis and filters the air entering along the air hood in real time as it rotates.

[0017] By setting the filter screen in a ring shape, and the openings of the two air hoods being arc-shaped and abutting against the inner wall of the filter screen, the filter screen rotates around its own axis and filters the air entering the dehumidification compass in real time. As the dehumidification work progresses, the filter screen can be rotated, thus maintaining a good filtration effect on the air. At the same time, the filter screen rotated to the air outlet side can be cleaned under the exhaust of the air hood, which is more convenient.

[0018] Optionally, the upper surface of the disc cover is coaxially provided with a groove for the lower end of the filter screen to be inserted and rotated, and a toothed ring is coaxially provided on the outer peripheral side of the filter screen. A gear driven by a motor and meshing with the toothed ring is rotatably provided on the upper surface of the disc cover.

[0019] By embedding the lower end of the filter screen into the groove and rotating it, the upper surface of the lid engages with the toothed ring on the filter screen via a gear driven by a motor, thereby driving the filter screen to rotate continuously and maintain the filtration operation, which is more convenient.

[0020] Optionally, the lower end of the cylinder is vertically provided with multiple supports that are detachably connected to the top of the substation, and the air inlet pipe and the air outlet pipe are universal telescopic plastic pipes.

[0021] By setting support legs at the lower end of the cylinder and detachably connecting it to the top of the substation, the entire dehumidification device can be disassembled and replaced relative to the substation. With the addition of an air outlet pipe and an air inlet pipe made of universal telescopic plastic tubing, the entire dehumidification device can be adapted to substations of various specifications.

[0022] Optionally, the inner bottom wall of the cylinder is provided with a sealing ring that abuts against the lower end face of the chassis at the outer periphery of the two sets of through holes, and the upper side of the partition plate and the side away from the central axis are provided with sealing strips that abut against the lower end face of the disc cover and the inner peripheral side wall of the cylinder.

[0023] By setting a sealing ring at the bottom of the cylinder, two sealing rings correspond to two sets of through holes. Combined with the sealing strip on the partition, leakage during air intake and exhaust is reduced, thus reducing the impact on dehumidification effect.

[0024] Optionally, the upper end face of the disc cover has a vertical protrusion in the middle and a first pull ring is provided, the lower end face of the disc cover is recessed in the middle, and the top of the central shaft is provided with a second pull ring that is inserted into the recess.

[0025] The cover can be lifted by the first pull ring, and the central shaft and related components can be lifted by the second pull ring, making the entire dehumidification device very easy to assemble and disassemble.

[0026] (III) Beneficial Effects

[0027] The beneficial effects of this utility model are as follows: When the dehumidification device for substations is used to dehumidify the substation, the dehumidification compass is fixed to the top of the substation. One end of the air inlet pipe and the air outlet pipe are connected to the air inlet and air outlet of the substation, respectively. At this time, the air inlet draws air into the substation. External air enters through the air inlet and then enters the receiving cavity. The moisture contained in the air will be absorbed by the desiccant. The dry air will enter the air inlet pipe through the lower through hole and finally enter the substation. The dry air absorbs the heat generated by the operation of various components in the substation and is discharged through the air outlet pipe and the air outlet. After a period of time, the central shaft is rotated, thereby changing the position of the desiccant. The dry desiccant moves to align with the air inlet, while the desiccant that has absorbed more moisture is moved to align with the air outlet. At this time, the high-temperature air discharged along the air outlet pipe will pass through the moisture-containing desiccant and separate the moisture in the desiccant, so that the dehumidification compass can be used continuously and conveniently. Attached Figure Description

[0028] Figure 1 This is a perspective view of an embodiment of the present utility model;

[0029] Figure 2 This is a cross-sectional view of the dehumidification compass in an embodiment of this utility model.

[0030] [Explanation of Labels in the Attached Image]

[0031] 1. Dehumidifier compass; 11. Compass body; 111. Cylinder; 112. Compass cover; 1121. First pull ring; 1122. Groove; 1123. Gear; 113. Through hole; 114. Air inlet; 115. Air outlet; 116. Sealing ring; 12. Central shaft; 121. Square hole; 122. Second pull ring; 13. Partition plate; 131. Sealing strip; 14. Storage cavity; 15. Base; 151. Vent hole; 16. Support leg; 17. Drive rod; 2. Air inlet pipe; 3. Air outlet pipe; 4. Air cover; 5. Filter screen; 51. Gear ring. Detailed Implementation

[0032] To better explain and facilitate understanding of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0033] The dehumidification device for substations proposed in this embodiment of the invention involves fixing a dehumidification compass to the top of the substation when dehumidifying it. One end of the inlet pipe and the other end of the outlet pipe are connected to the substation's air inlet and outlet, respectively. The inlet draws air into the substation, and external air enters through the inlet hole. Upon entering the receiving chamber, the moisture in the air is absorbed by the desiccant. The dried air then enters the inlet pipe through the lower through-hole and eventually enters the substation. The dried air absorbs heat generated by the substation's components and is then discharged through the outlet pipe and outlet. After a period of time, the central shaft is rotated, causing the desiccant to change position. The drier desiccant moves to align with the inlet hole, while the desiccant that has absorbed more moisture moves to align with the outlet hole. The high-temperature air discharged through the outlet pipe then passes through the moisture-containing desiccant, separating the moisture and allowing the dehumidification compass to be used continuously and conveniently.

[0034] To better understand the above technical solutions, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that the present invention can be understood more clearly and thoroughly, and that the scope of the present invention can be fully conveyed to those skilled in the art.

[0035] Reference Figure 1 and Figure 2 A dehumidification device for substations includes a dehumidification compass 1 installed on the top of the substation and an air inlet pipe 2 and an air outlet pipe 3 installed on both sides of the dehumidification compass 1 and respectively connected to the air inlet and air outlet of the substation. The air inlet pipe 2 and the air outlet pipe 3 are universal telescopic plastic pipes.

[0036] The dehumidification compass 1 includes a hollow disc body 11 fixed to the top of the substation, a central shaft 12 coaxially rotatably disposed in the middle of the disc body 11, and multiple partitions 13 evenly spaced vertically around the sides of the central shaft 12. Adjacent partitions 13 are separated within the disc body 11 to form storage cavities 14 for desiccant to be placed. The disc body 11 includes a cylinder 111 and a detachable disc cover 112 disposed on the top of the cylinder 111. The lower end face of the cylinder 111 has two sets of through holes 113 connecting the air inlet pipe 2 and the air outlet pipe 3 to the two storage cavities 14 which are distributed opposite to each other. The upper end face of the disc cover 112 has an air inlet hole 114 and an air outlet hole 115 connecting the two storage cavities 14. The air inlet draws air into the substation. External air enters through the air inlet 114 and then into the receiving cavity 14. The moisture in the air is absorbed by the desiccant. The dry air enters the air inlet pipe 2 through the lower through hole 113 and finally enters the substation. The dry air absorbs the heat generated by the operation of various components in the substation and is discharged through the air outlet 115 after passing through the air outlet pipe 3. After a period of time, the central shaft 12 is rotated, thereby changing the position of the desiccant. The dry desiccant moves to align with the air inlet 114, while the desiccant that has absorbed more moisture is moved to align with the air outlet 115. At this time, the high-temperature air discharged along the air outlet pipe 3 will pass through the moisture-containing desiccant and separate the moisture in the desiccant.

[0037] A base 15, coaxially connected to the lower end of the partition plate 13, is mounted on the lower end of the central shaft 12. Ventilation holes 151 are evenly arrayed on the base 15. Multiple supports 16, which can be vertically welded to the lower end of the cylinder 111 and detachably connected to the top of the substation via bolts, are mounted on the lower end of the central shaft 12. A square hole 121 is coaxially mounted on the lower end of the cylinder 111. A drive rod 17, driven by a motor and vertically inserted into the square hole 121, is rotatably mounted on the lower end of the cylinder 111. This allows the desiccant, after being placed in the storage cavity 14, to rest on the upper end of the base 15, enabling the central shaft 12 to be removed from the disc body 11 along with the base 15 and partition plate 13, facilitating desiccant replacement. Simultaneously, the motor drives the drive rod 17 to rotate, which directly inserts into the square hole 121, driving the central shaft 12 to rotate. This allows the rotation of the central shaft 12 to be electrically controlled, eliminating the need for manual operation and making it more convenient.

[0038] A sealing ring 116 is bonded to the outer periphery of the two sets of through holes 113 on the inner bottom wall of the cylinder 111, abutting against the lower end face of the chassis 15. Sealing strips 131 are bonded to the upper end of the partition plate 13 and the side away from the central axis 12, abutting against the lower end face of the cover 112 and the inner circumferential side wall of the cylinder 111. The two sealing rings 116 correspond to the two sets of through holes 113, and together with the sealing strips 131 on the partition plate 13, to reduce leakage during air intake and exhaust, thus minimizing impact on dehumidification efficiency.

[0039] The upper surface of the cover 112 has a vertical protrusion in the middle and a first pull ring 1121. The lower surface of the cover 112 is recessed in the middle, and a second pull ring 122 is provided on the top of the central shaft 12, which is inserted into the recess. The cover 112 can be lifted by the first pull ring 1121, and the central shaft 12 and related components can be lifted by the second pull ring 122, making the disassembly and assembly of the entire dehumidification device very convenient.

[0040] Two air hoods 4 are bolted to the upper surface of the cover 112. The openings of the two air hoods 4 are arranged in opposite directions and are aligned with the air inlet 114 and the air outlet 115, respectively. The directions of drawing external air into the substation and venting air from the substation are opposite, thereby reducing the interference caused by the air flow between them.

[0041] A filter screen 5 is rotatably connected to the upper end face of the cover 112. The filter screen 5 is annular, and its axis is coaxial with the disc body 11. The opening of the air hood 4 is arc-shaped and abuts against the inner circumferential wall of the filter screen 5. The filter screen 5 is rotatably connected to the upper end face of the cover 112 around its own axis and filters the air entering along the air hood 4 in real time as it rotates. A groove 1122 is coaxially provided on the upper end face of the cover 112 for the lower end of the filter screen 5 to be inserted and rotated. A toothed ring 51 is coaxially provided on the outer circumferential side of the filter screen 5. A gear 1123 driven by a motor and meshing with the toothed ring 51 is rotatably provided on the upper end face of the cover 112. The filter screen 5 rotates around its own axis and filters the air entering the dehumidification compass 1 in real time. As the dehumidification work progresses, the filter screen 5 can rotate to maintain a good filtration effect on the air. At the same time, the filter screen 5 rotated to the side of the air outlet 115 can be cleaned under the exhaust of the air cover 4, which is very convenient. In addition, the whole process is driven by a motor, which makes it even more convenient.

[0042] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0043] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0044] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "beneath" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0045] In the description of this specification, the terms "one embodiment," "some embodiments," "embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0046] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make modifications, alterations, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A dehumidification device for substations, characterized in that: The system includes a dehumidification compass (1) installed on the top of the substation, and an air inlet pipe (2) and an air outlet pipe (3) installed on both sides of the dehumidification compass (1) and respectively connected to the air inlet and outlet of the substation. The dehumidification compass (1) includes a hollow disc body (11) fixed to the top of the substation, a central shaft (12) coaxially rotatably installed in the middle of the disc body (11), and multiple partition plates evenly spaced vertically around the central shaft (12). The plate (13) is separated into storage cavities (14) for desiccant to be placed in the disc body (11) by adjacent partitions (13). The lower end face of the disc body (11) is provided with two sets of through holes (113) connecting the air inlet pipe (2) and the air outlet pipe (3) to the two storage cavities (14) which are distributed opposite to each other. The upper end face of the disc body (11) is provided with air inlet holes (114) and air outlet holes (115) connecting the two storage cavities (14) on both sides.

2. The dehumidification device for substations as described in claim 1, characterized in that: The lower end of the central shaft (12) is coaxially provided with a base (15) connected to the lower side of the partition (13). The base (15) has a uniform array of ventilation holes (151). The disk body (11) includes a cylinder (111) and a disk cover (112) detachably provided on the top of the cylinder (111). The lower end of the central shaft (12) is coaxially provided with a square hole (121). The lower end of the cylinder (111) is rotatably provided with a drive rod (17) driven by a motor and vertically inserted into the square hole (121).

3. The dehumidification device for substations as described in claim 2, characterized in that: The upper surface of the cover (112) is provided with two air hoods (4), the openings of the two air hoods (4) are arranged in opposite directions and are respectively aligned with the air inlet (114) and the air outlet (115).

4. The dehumidification device for substations as described in claim 3, characterized in that: The air inlet end of the air cover (4) connected to the air inlet (114) and the air outlet end of the air cover (4) connected to the air outlet (115) are respectively detachably connected to a filter screen (5).

5. The dehumidification device for substations as described in claim 4, characterized in that: The filter screen (5) is annular, and the axis of the filter screen (5) is coaxial with the disc body (11). The opening of the air cover (4) is arc-shaped and abuts against the inner peripheral wall of the filter screen (5). The filter screen (5) is rotatably connected to the upper end face of the disc cover (112) with its own axis as the axis and filters the air entering along the air cover (4) in real time as it rotates.

6. The dehumidification device for substations as described in claim 5, characterized in that: The upper end face of the disc cover (112) is coaxially provided with a groove (1122) for the lower end of the filter screen (5) to be inserted and rotated. The outer peripheral side of the filter screen (5) is coaxially provided with a toothed ring (51). The upper end face of the disc cover (112) is rotatably provided with a gear (1123) that is driven by a motor and meshes with the toothed ring (51).

7. The dehumidification device for substations as described in claim 2, characterized in that: The lower end of the cylinder (111) is vertically provided with multiple supports and detachably connected to the support legs (16) on the top of the substation. The air inlet pipe (2) and the air outlet pipe (3) are universal telescopic plastic pipes.

8. The dehumidification device for substations as described in claim 2, characterized in that: The inner bottom wall of the cylinder (111) is provided with sealing rings (116) that abut against the lower end face of the chassis (15) on the outer periphery of the two sets of through holes (113). The upper end of the partition plate (13) and the side end away from the central axis (12) are provided with sealing strips (131) that abut against the lower end face of the disc cover (112) and the inner peripheral side wall of the cylinder (111).

9. The dehumidification device for substations as described in claim 2, characterized in that: The upper end face of the disc cover (112) has a vertical protrusion in the middle and a first pull ring (1121) is provided. The lower end face of the disc cover (112) is recessed in the middle, and the top of the central shaft (12) is provided with a second pull ring (122) inserted into the recess.

Images