Guiding type installed electric reactor noise reduction structure and electric reactor assembly

Abstract

The utility model provides an electric reactor noise reduction structure installed in a guiding mode and an electric reactor assembly, the noise reduction structure is located between an electric reactor box cover plate and a pressing frame on the upper portion of an electric reactor body, and the noise reduction structure comprises a first guiding structure fixedly arranged on the box cover plate and a second guiding structure fixedly arranged on the pressing frame. The first guide structure can be movably inserted into the second guide structure to realize positioning and mounting of the transformer body; the part, making contact with the second guide structure, of the first guide structure is a guide head, a vibration absorption material is contained in the second guide structure, the vibration absorption material completely wraps the guide head, and the vibration absorption material has a preset thickness in the normal outward extending direction of the contact face surrounding the guide head. The guide head abuts against the pressing frame through the vibration absorption material. On the basis of ensuring tight connection of the reactor body and the oil tank, the vibration reduction capacity is higher, the noise is lower, and the influence of vibration and noise of the reactor on the surrounding environment is reduced.

Description

Technical Field

[0001] This utility model relates to the field of reactors, specifically to a guide-mounted reactor noise reduction structure and reactor assembly. Background Technology

[0002] Currently, the positioning structure on the upper part of the reactor body mostly adopts the method of welding positioning round steel to the upper part of the reactor body. The positioning round steel is slightly higher than the tank cover, and the position of the positioning round steel is fixed by the reactor body fixing plate welded to the lower surface of the tank cover to achieve the positioning of the reactor body. This positioning installation method results in a direct rigid structural connection between the reactor body and the tank cover, commonly known as a "hard-on-hard" connection. The vibration during equipment operation cannot be amplified and is directly transmitted from the upper part of the reactor body according to the original vibration amplitude and frequency. The noise is loud and continuous, causing significant physical and mental harm to substation workers in this environment. It can easily cause mental fatigue and irritability, thereby triggering secondary safety accidents. The continuous noise also greatly disturbs the normal life of residents around the substation.

[0003] Therefore, it is necessary to improve the positioning and installation method of the reactor body in order to reduce vibration and noise. Utility Model Content

[0004] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a guide-mounted reactor noise reduction structure and reactor. The reactor body is positioned and installed by the cooperation of the upper and lower guide structures. The vibration-absorbing material in the lower guide structure near the reactor body can absorb, buffer and dissipate the vibration generated during equipment operation, thereby greatly reducing vibration noise.

[0005] To achieve the aforementioned objectives, in a first aspect, this utility model provides a guide-mounted reactor noise reduction structure. The noise reduction structure is located between the reactor tank cover and the pressure frame on the upper part of the reactor body. It includes a first guide structure fixed to the tank cover and a second guide structure fixed to the pressure frame. The first guide structure is movably inserted into the second guide structure to achieve reactor body positioning and installation. The portion of the first guide structure that contacts the second guide structure is a guide head. The second guide structure contains vibration-absorbing material that completely encloses the guide head and has a predetermined thickness extending outward in the normal direction around the contact surface of the guide head. The guide head rests against the pressure frame via the vibration-absorbing material.

[0006] Preferably, there is a fitting gap between the first guide structure and the second guide structure.

[0007] Preferably, the second guide structure includes an outer guide and an inner guide, the inner guide being nested inside the outer guide, and there is a movement gap between the outer side of the inner guide and the inner side of the outer guide, the movement gap serving as the movement space for the inner guide; the inner guide completely encloses the guide head, and part or all of the inner guide is the vibration-absorbing material.

[0008] Preferably, the guide head is a conical head, the inner guide component is a seat sleeve, the seat sleeve has a conical groove, and the conical head is inserted into the conical groove for positioning; the seat sleeve is made of polyurethane elastomer.

[0009] Preferably, the cone angle of the conical groove is 30°-40°.

[0010] Preferably, the cone angle of the conical groove is 36°.

[0011] Preferably, the bottom outer side of the seat cover is further provided with at least one layer of circular cardboard and / or at least one layer of cork rubber pad.

[0012] Preferably, the first guide structure includes a flange and a positioning round steel bar. The flange has a threaded hole, and the two ends of the positioning round steel bar are cylindrical and partially conical, respectively. The cylindrical end is connected to the flange via an external thread. The second guide structure includes a positioning steel pipe, which contains vibration-absorbing material with a conical groove. The conical end of the first guide structure is inserted into the conical groove as a guide head to achieve positioning. The flange is welded to the box cover plate, and the positioning steel pipe is welded to the pressure frame.

[0013] Preferably, the cylindrical end of the positioning round steel is further reinforced by welding around the contact circumference after being connected to the flange.

[0014] Secondly, this utility model provides a reactor assembly, including a reactor and a guided-mounted reactor noise reduction structure as described in any of the technical solutions of the first aspect, wherein the reactor is positioned and installed through the guided-mounted reactor noise reduction structure.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] By structurally modifying the sound transmission path, the device achieves both effective positioning and noise control. Specifically, the matching connection between the lower guide structure located on the upper part of the device body and the upper guide structure located on the lower part of the cover plate is wrapped with a vibration-absorbing polyurethane elastomer. Polyurethane elastomer has vibration-absorbing properties and good noise reduction effect. Other technical effects brought about by the additional features will be further described in the corresponding embodiments. Attached Figure Description

[0017] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0018] Figure 1 A schematic diagram of one embodiment of the guide-mounted reactor noise reduction structure of this utility model;

[0019] Figure 2 This is a part drawing of the seat sleeve in one embodiment of the guide-mounted reactor noise reduction structure of this utility model.

[0020] In the diagram, 1 is flange; 2 is positioning round steel; 3 is seat sleeve; 4 is positioning steel pipe; 5 is round cardboard; 6 is cork rubber pad; 10 is box cover; and 20 is pressure frame. Detailed Implementation

[0021] The present invention will now be described in detail with reference to specific embodiments. These embodiments will help those skilled in the art to further understand the present invention, but do not limit the present invention in any way. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention. These all fall within the protection scope of the present invention.

[0022] like Figure 1 As shown, one embodiment of the guide-mounted reactor noise reduction structure of this utility model is located between the reactor box cover plate 10 and the pressure frame 20 on the upper part of the reactor body. It includes a first guide structure fixed on the box cover plate 10 and a second guide structure fixed on the pressure frame 20. The first guide structure can be movably inserted into the second guide structure to achieve positioning and installation of the reactor body. The part of the first guide structure that contacts the second guide structure is a guide head. The second guide structure contains vibration-absorbing material inside. The vibration-absorbing material completely covers the guide head and has a preset thickness in the normal outward extension direction around the contact surface of the guide head. The guide head abuts against the pressure frame 20 via the vibration-absorbing material.

[0023] In this embodiment, on the one hand, the positioning and installation of the device body is achieved through the insertion cooperation of the upper first guide structure and the lower second guide structure. This insertion installation method allows for easy removal at any time, facilitating the opening of the box cover 10 for equipment inspection and maintenance. On the other hand, the vibration-absorbing material inside the second guide structure completely encloses the guide head. The vibration-absorbing material has a certain thickness in the circumference or spherical space of the guide head, ensuring sufficient buffering performance. The guide head contacts the pressure frame 20 after being buffered by the vibration-absorbing material, which can greatly reduce the vibration and noise generated above and below the pressure frame 20.

[0024] In one embodiment of the reactor noise reduction structure with guided installation of this utility model, there is a fitting gap between the first guide structure and the second guide structure.

[0025] In this embodiment, the fitting clearance can provide installation position redundancy for the manufacturing dimensional deviation of at least one of the box cover plate 10 and reactor body, ensuring smooth positioning and convenient insertion and removal.

[0026] In one embodiment of the guide-mounted reactor noise reduction structure of this utility model, the second guide structure includes an outer guide member and an inner guide member. The inner guide member is nested inside the outer guide member, and there is a movement gap between the outer side of the inner guide member and the inner side of the outer guide member. The movement gap serves as the movement space for the inner guide member. The inner guide member completely encloses the guide head, and part or all of the inner guide member is the vibration-absorbing material.

[0027] In this embodiment, the second guide structure adopts a nested structure. On the one hand, the outer guide is a rigid structure and the inner guide is a flexible structure. In extreme cases, if the outer guide is damaged due to accidental impact, it can still position and limit the guide head, preventing excessive deviation of the guide head position and thus avoiding safety accidents. On the other hand, the nesting creates a moving gap, allowing the inner guide to move freely within the cavity of the outer guide. This allows adjustment of the horizontal position deviation of the guide head, the cover plate 10, or the reactor body. This position deviation is generally caused by dimensional deviations during manufacturing, preventing installation failure due to deviations and improving installation convenience and dimensional redundancy. Furthermore, the inner guide is a consumable item that is easily damaged. The nested structure facilitates the replacement of fatigued or damaged inner guides, improving product maintainability.

[0028] like Figure 1 and Figure 2 As shown, in one embodiment of the guide-mounted reactor noise reduction structure of this utility model, the guide head is a conical head, the inner guide component is a seat sleeve 3, the seat sleeve 3 has a conical groove, and the conical head is inserted into the conical groove to achieve positioning; the seat sleeve 3 is a polyurethane elastomer.

[0029] In this embodiment, the seat cover 3 is made of a special polyurethane elastomer material with a Shore hardness of 72. Polyurethane elastomers are polymers formed by the addition polymerization of oligomeric polyols, polyisocyanates, and chain extenders, containing multiple urethane esters in their molecules. Due to the presence of numerous polar groups on the polyurethane macromolecular chains, they possess strong intermolecular forces and hydrogen bonds, thus endowing the elastomer with many excellent properties. Its most prominent characteristics are a wide adjustable hardness range, excellent elasticity, superior wear resistance and load-bearing capacity, and good vibration damping performance. Furthermore, the unique soft and hard segment structure of polyurethane also endows the elastomer with unique viscoelastic properties, giving it excellent vibration damping, sound insulation, and cushioning performance.

[0030] like Figure 2 As shown, in one embodiment of the guide-mounted reactor noise reduction structure of this utility model, the cone angle 2a of the conical groove of the seat sleeve 3 is 30°-40°. Figure 2 The sum of the two angles 'a' marked on the chart is the cone angle 2a of the conical groove of the seat sleeve 3. Preferably, Figure 2 The two angles 'a' marked in the figure are both 18°±0.3°, so the cone angle 2a of the conical groove is 36°±0.6°.

[0031] In this embodiment, after repeated testing of the guiding and cushioning properties of the seat sleeve 3 with different cone angles, when the cone angle is 30°-40°, the guide head can be inserted into the seat sleeve 3 relatively smoothly without severe scraping during insertion, and the seat sleeve 3 can tightly wrap around the guide head, resulting in stable cushioning performance. In particular, when the cone angle is 36°±0.6°, the guiding and cushioning properties achieve the best balance, which can improve the service life of the seat sleeve 3 to a certain extent.

[0032] like Figure 1 As shown, in one embodiment of the reactor noise reduction structure of the guide installation of this utility model, the bottom outer side of the seat 3 is also provided with at least one layer of circular cardboard 5 and / or at least one layer of cork rubber pad 6.

[0033] In this embodiment, at least one layer of circular cardboard 5 and / or at least one layer of cork rubber pad 6 are added as additional cushioning measures between the seat cover 3 and the reactor body. The specific type, quantity, or thickness of the added cushioning is designed based on the shape factor and contact area. One or more layers of circular cardboard 5 can be placed on the outer bottom of the seat cover 3; or one or more layers of cork rubber pad 6 can be placed; preferably, both circular cardboard 5 and cork rubber pad 6 are placed simultaneously, such as... Figure 1 As shown, three layers of circular cardboard 5 were first placed at the bottom of the seat cover 3, followed by a cork rubber pad 6 placed at the bottom of the circular cardboard 5. The total thickness of the circular cardboard 5 is 3mm, and the thickness of the cork rubber pad 6 is 9mm. It should be noted that... Figure 1The middle seat cover 3 is a bottomless, hollow structure. As a variation, the seat cover 3 can have a bottom of a certain thickness. The material of the bottom can be different from the material of its side walls, possessing both a certain degree of hardness and elasticity, and can withstand a certain amount of impact from the guide head. It should be noted that the circular cardboard 5 and the cork rubber pad 6 can also be designed and manufactured as a single unit with the seat cover 3 to improve the ease of installation. This embodiment, through the superposition of multiple layers of cushioning materials, can significantly improve vibration absorption and noise reduction performance.

[0034] like Figure 1 As shown, in one embodiment of the guided installation reactor noise reduction structure of this utility model, the first guide structure includes a flange 1 and a positioning round steel 2. The flange 1 has a threaded hole, and the two ends of the positioning round steel 2 are cylindrical and partially conical, respectively. The cylindrical end is connected to the flange 1 by an external thread. The second guide structure includes a positioning steel pipe 4, which contains vibration-absorbing material with a conical groove. The conical end of the first guide structure is inserted into the conical groove as a guide head to achieve positioning. The flange 1 is welded to the cover plate 10, and the positioning steel pipe 4 is welded to the pressure frame 20.

[0035] In this embodiment, compared to directly welding the bulky positioning round steel 2 onto the box cover plate 10, since the flange 1 is a lightweight small component, it is easier to fix the flange 1 to the preset position on the box cover plate 10 when welding the flange 1 to the box cover plate 10. Moreover, displacement is less likely to occur during the welding process, ensuring the accuracy of the installation position and providing a guarantee for subsequent accurate guidance and positioning. Figure 1 In the middle, one end of the positioning round steel 2 is a cylinder with external threads, which is threaded to the flange 1, and the other end is a small cylinder with a partial cone and a cone apex. Correspondingly, the vibration-absorbing material in the second guide structure has a conical groove and a small cylindrical groove at the bottom. The transition of the small cylinder can increase the contact area of ​​the insertion fit, thereby enhancing the wrapping of the vibration-absorbing material on the partial conical end of the positioning steel pipe 4, and ultimately improving the guiding and buffering performance.

[0036] In one embodiment of the guide-mounted reactor noise reduction structure of this utility model, the contact circumference of the cylindrical end of the positioning round steel 2 after being connected to the flange 1 is further reinforced by welding.

[0037] In this embodiment, in addition to the threaded connection between the cylindrical end of the positioning round steel 2 and the flange 1, circumferential welding is also performed on the circular seam where the two contact each other, increasing the connection area between the two and making the connection more secure. This helps to prevent the connection from loosening or falling off due to equipment vibration during operation.

[0038] One embodiment of the reactor assembly of this utility model includes a reactor and a guided-mounted reactor noise reduction structure as described in any of the above-described guided-mounted reactor noise reduction structures. The reactor is positioned and installed by the guided-mounted reactor noise reduction structure.

[0039] The advantages of this embodiment necessarily include the corresponding advantages of the guided-mounted reactor noise reduction structure described in any of the above-mentioned embodiments of the guided-mounted reactor noise reduction structure, which can ultimately significantly reduce the vibration and noise of the reactor assembly during operation.

[0040] The specific embodiments of this utility model have been described above. It should be understood that this utility model is not limited to the specific embodiments described above, and those skilled in the art can make various modifications or variations within the scope of the claims, which do not affect the substantive content of this utility model. The above-described preferred features can be used in any combination without conflict.

Claims

1. A guide-mounted reactor noise reduction structure, characterized in that, The noise reduction structure is located between the reactor box cover and the pressure frame on the upper part of the reactor body. It includes a first guide structure fixed to the box cover and a second guide structure fixed to the pressure frame. The first guide structure can be movably inserted into the second guide structure to achieve positioning and installation of the reactor body. The part of the first guide structure that contacts the second guide structure is a guide head. The second guide structure contains vibration-absorbing material, which completely covers the guide head and has a preset thickness in the normal outward direction around the contact surface of the guide head. The guide head rests against the pressure frame via the vibration-absorbing material.

2. The guided-installation reactor noise reduction structure according to claim 1, characterized in that, There is a fitting gap between the first guide structure and the second guide structure.

3. The guided-installation reactor noise reduction structure according to claim 1, characterized in that, The second guide structure includes an outer guide and an inner guide. The inner guide is nested inside the outer guide, and there is a movement gap between the outer side of the inner guide and the inner side of the outer guide. The movement gap serves as the movement space for the inner guide. The inner guide completely encloses the guide head, and part or all of the inner guide is the vibration-absorbing material.

4. The guided-mounted reactor noise reduction structure according to claim 3, characterized in that, The guide head is a conical head, the inner guide component is a seat sleeve, the seat sleeve has a conical groove, and the conical head is inserted into the conical groove for positioning; the seat sleeve is made of polyurethane elastomer.

5. The guided-installation reactor noise reduction structure according to claim 4, characterized in that, The cone angle of the conical groove is 30°-40°.

6. The guided-installation reactor noise reduction structure according to claim 5, characterized in that, The cone angle of the conical groove is 36°.

7. The guided-installation reactor noise reduction structure according to claim 4, characterized in that, The bottom outer side of the seat cover is also provided with at least one layer of circular cardboard and / or at least one layer of cork rubber pad.

8. The guided-installation reactor noise reduction structure according to claim 1, characterized in that, The first guide structure includes a flange and a positioning round steel bar. The flange has a threaded hole, and the two ends of the positioning round steel bar are cylindrical and partially conical, respectively. The cylindrical end is connected to the flange via an external thread. The second guide structure includes a positioning steel pipe, which contains vibration-absorbing material with a conical groove. The conical end of the first guide structure is inserted into the conical groove as a guide head to achieve positioning. The flange is welded to the box cover plate, and the positioning steel pipe is welded to the pressure frame.

9. The guided-installation reactor noise reduction structure according to claim 8, characterized in that, Furthermore, the cylindrical end of the positioning round steel is welded and reinforced to the contact circumference after being connected to the flange.

10. A reactor assembly, characterized in that, It includes a reactor and a guided-mounted reactor noise reduction structure as described in any one of claims 1-9, wherein the reactor is positioned and installed by means of the guided-mounted reactor noise reduction structure.

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