Self-damping adjusting phase-to-phase spacing device capable of inhibiting galloping
By adjusting the damping cavity and spacer rod assembly in the phase-to-phase spacing device with self-damping adjustment, the problems of residual vibration and adaptability of spring-type devices are solved, achieving stable suppression of conductor galloping and safe operation, which is suitable for high-voltage transmission lines.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-06
- Publication Date
- 2026-03-24
AI Technical Summary
In the existing technology, traditional phase-to-phase spacing devices with springs as buffers have large aftershocks. The fixed damping value cannot adapt to different degrees of conductor galloping, and when the conductors gallop violently, the phase-to-phase distance is insufficient, increasing the risk of short circuits.
The system employs adjustment and movement components, including a damping cavity and spacers, to generate damping force through the flow of the damping medium. This adaptively adjusts the conductor position, suppresses conductor galloping, and limits conductor displacement distance through a limiting mechanism, ensuring stable operation.
It effectively suppresses conductor galloping of varying degrees, reduces aftershocks, improves line safety, is suitable for various voltage levels and layout scenarios, and requires no external monitoring or power supply for easy installation and extended service life.
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Figure CN224037034U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to high -tension overhead transmission line safety field, concretely relates to a kind of self-damping adjustment phase spacing device of inhibiting galloping. BACKGROUND
[0002] Wire phase spacing rod is installed between the wire of high-voltage transmission line, and its main function is to maintain the fixed distance between the wire, prevent the wire swing caused by wind vibration, ice flash and other natural conditions, and reduce the occurrence of air arc, ensure the stable operation of transmission line, and be widely applied in super, ultra-high voltage AC and DC transmission line.
[0003] And the current anti-galloping phase spacing device mainly uses spring as buffer to control wire jumping, and then plays a certain anti-galloping effect. But this method still has certain drawbacks, such as: 1. When the wire gallops, the spring as buffer will have a larger aftershock, which increases the safety risk of line; 2. The damping value of spring is fixed, which cannot adapt to different degrees of wire galloping; 3. The spring force is related to deformation, and the larger the deformation, the stronger the spring force, so when a larger gallop occurs, the insufficient phase distance caused by spring expansion increases the risk of short circuit. SUMMARY
[0004] The present application provides a self-damping adjustment phase spacing device capable of inhibiting galloping, which can solve the technical problems that the traditional phase spacing device uses spring as buffer, has a larger aftershock, and the damping value of spring is fixed, which cannot adapt to different degrees of wire galloping. At the same time, when a larger gallop occurs, the insufficient phase distance caused by spring expansion also increases the risk of short circuit.
[0005] The present application provides a self-damping adjustment phase spacing device capable of inhibiting galloping, which can solve the technical problems that the traditional phase spacing device uses spring as buffer, has a larger aftershock, and the damping value of spring is fixed, which cannot adapt to different degrees of wire galloping. At the same time, when a larger gallop occurs, the insufficient phase distance caused by spring expansion also increases the risk of short circuit.
[0006] The adjusting assembly includes two longitudinally arranged damping cavities, the damping cavities include a first chamber, a second chamber located below the first chamber and communicating with the first chamber, and a third chamber located outside the periphery of the first chamber and the second chamber and communicating with the second chamber, the first chamber and the second chamber are provided with damping medium, and the second chambers of the two damping cavities are close to each other.
[0007] The moving assembly includes a spacing rod that can be axially displaced along the damping cavity, one end of the spacing rod passes through the first chamber and enters the second chamber, and the other end extends out of the first chamber for connecting the wire of high-voltage transmission line.
[0008] In an embodiment, a first piston valve longitudinally displaceable is arranged between the first chamber and the second chamber, and a first through hole for the spacer rod to pass through is arranged on the first piston valve.
[0009] In an embodiment, a clamping member for clamping the first piston valve is arranged on the outer periphery of the spacer rod.
[0010] In an embodiment, a second piston valve for communicating with the third chamber is arranged at the bottom of the second chamber.
[0011] In an embodiment, a limiting mechanism for limiting the displacement distance of the spacer rod is arranged at the end of the first chamber away from the second chamber.
[0012] In an embodiment, the limiting mechanism comprises a limiting block, and a second through hole for the spacer rod to pass through is arranged in the middle of the limiting block.
[0013] In an embodiment, a clamping groove is arranged on the inner wall of the second through hole, and a protruding ring cooperating with the clamping groove is arranged on the outer periphery of the rod body of the spacer rod.
[0014] In an embodiment, the height of the third chamber is not more than the sum of the heights of the first chamber and the second chamber.
[0015] In an embodiment, a wire connecting part is arranged at the end of the spacer rod extending out of the first chamber.
[0016] In an embodiment, an insulating disc coaxially arranged on the rod body of the spacer rod extending out of the first chamber.
[0017] The technical scheme provided by the embodiments of the present application has the following beneficial effects:
[0018] 1. The phase-to-phase spacing device in the present application can generate damping force while the wire is displaced by arranging the first chamber and the second chamber filled with damping medium, and the third chamber communicating with the second chamber, cooperating with the displacement of the spacer rod, which can effectively suppress wind deviation or wire dancing of different degrees, and has stronger suppression on severe wire dancing, and does not produce excess vibration, and more effectively ensures the safe operation of the line.
[0019] 2. The phase-to-phase spacing device in the present application can be flexibly adjusted in length according to the position of the wire, and has large adjustment range, is suitable for various voltage levels and various wire arrangement scenes, and has strong applicability.
[0020] 3. The phase-to-phase spacing device in the present application adopts self-adaptive variable damping adjustment, does not need other monitoring means, and does not need power supply, which is convenient for installation and long-term use. BRIEF DESCRIPTION OF DRAWINGS
[0021] In order to make the technical solutions in the embodiments of the present application clearer, the accompanying drawings needed in the embodiment description will be briefly introduced as follows. Obviously, the accompanying drawings in the following description are only some embodiments of the present application, and other accompanying drawings can be obtained by those skilled in the art without any creative effort on the basis of these accompanying drawings.
[0022] Figure 1 A structure diagram of a self-damping adjustment phase-to-phase spacing device capable of suppressing galloping provided in the embodiments of the present application;
[0023] Figure 2 A damping cavity sectional view of a self-damping adjustment phase-to-phase spacing device capable of suppressing galloping provided in the embodiments of the present application;
[0024] Figure 3 A structure diagram of a limiting mechanism in a self-damping adjustment phase-to-phase spacing device capable of suppressing galloping provided in the embodiments of the present application.
[0025] In the drawings: 1, damping cavity; 101, first chamber; 102, second chamber; 103, third chamber; 2, spacing rod; 201, clamping part; 202, protruding ring; 3, first piston valve; 301, first through hole; 4, second piston valve; 5, limiting block; 501, second through hole; 502, clamping groove; 6, wire connecting part; 7, insulating disc. DETAILED DESCRIPTION
[0026] In order to make the technical solutions in the embodiments of the present application clearer, the accompanying drawings needed in the embodiment description will be briefly introduced as follows. Obviously, the accompanying drawings in the following description are only some embodiments of the present application, and other accompanying drawings can be obtained by those skilled in the art without any creative effort on the basis of these accompanying drawings.
[0027] The embodiments of the present application provide a self-damping adjustment phase-to-phase spacing device capable of suppressing galloping, which can solve the technical problem in the prior art that the traditional phase-to-phase spacing device has a large residual shock when a spring is used as a buffer body, and the damping value of the spring is fixed and cannot adapt to different degrees of wire galloping, and meanwhile, the spring expansion and contraction result in insufficient phase-to-phase distance and increased short circuit risk when a large galloping occurs.
[0028] As shown in Figure 1 The phase-to-phase spacing device in the present application includes an adjustment assembly and a moving assembly, the moving assembly is connected to the wire of a high-voltage transmission line, and the moving assembly can longitudinally displace along the adjustment assembly with the displacement of the wire, so as to form a damping force inside the adjustment assembly and complete the damping and separation of the wire.
[0029] Specifically, Figure 1 A self-damping adjustment phase-to-phase spacing device structure diagram capable of suppressing galloping is provided for the embodiments of the present application, Figure 2 A damping cavity 1 cross-sectional view of a self-damping adjustment phase-to-phase spacing device capable of suppressing galloping is provided for the embodiments of the present application, as Figure 1 、 Figure 2 The adjustment assembly includes two longitudinally arranged damping cavities 1, the damping cavity 1 includes a first chamber 101, a second chamber 102 located below the first chamber 101 and communicating with the first chamber 101, and a third chamber 103 located outside the periphery of the first chamber 101 and the second chamber 102 and communicating with the second chamber 102, the first chamber 101 and the second chamber 102 are provided with damping medium, and the second chambers 102 in the two damping cavities 1 are close to each other.
[0030] The outer walls of the second chambers 102 in the two damping cavities 1 are connected and formed in one body, the third chamber 103 is arranged outside the periphery of the first chamber 101 and the second chamber 102, and the bottom of the third chamber 103 communicates with the second chamber 102, in a possible implementation manner, the height of the third chamber 103 is equal to the sum of the heights of the first chamber 101 and the second chamber 102, and the three chambers are all in a closed state, in the absence of external force, the first chamber 101 and the second chamber 102 are filled with damping medium, and the third chamber 103 is filled with air.
[0031] The moving assembly includes a spacing rod 2 which can be axially displaced along the damping cavity 1, one end of the spacing rod 2 penetrates through the first chamber 101 and enters the second chamber 102, and the other end extends out of the first chamber 101 for connecting the conductor of the high-voltage transmission line.
[0032] The spacing rod 2 is also two, which are arranged in the two damping cavities 1 respectively, when the conductor approaches the damping cavity 1, it drives the spacing rod 2 to simultaneously penetrate into the second chamber 102 and occupy more space of the second chamber 102, so that the damping medium in the second chamber 102 flows to the first chamber 101 and the third chamber 103 respectively, the air in the third chamber 103 is extruded, thereby generating damping force, and the greater the downward pulling force on the spacing rod 2, the greater the damping force, and vice versa.
[0033] The phase-to-phase spacing device in the present application can be self-adjusted, self-adaptive and meet the expected suppression of galloping, thereby optimizing the mechanism of the length of the spacing rod 2 adaptive adjustment of the galloping time, at the same time, compared with the traditional spring type phase-to-phase spacing device, the present application can provide more stable damping effect and longer service life.
[0034] Further, seeFigure 2 The first chamber 101 and the second chamber 102 are provided with a first piston valve 3 which can be longitudinally displaced, and the first piston valve 3 is provided with a first through hole 301 for the spacer rod 2 to pass through. The first piston valve 3 not only serves as a mutual passage of the damping medium in the first chamber 101 and the second chamber 102, but also serves to separate the first chamber 101 and the second chamber 102. The first through hole 301 through which one end of the spacer rod 2 enters the second chamber 102, and the spacer rod 2 drives the first piston valve 3 to synchronously displace when the spacer rod 2 is displaced, so as to change the volume of the first chamber 101 and the second chamber 102, and to extrude the damping medium in the first chamber 101 and the second chamber 102.
[0035] Further, referring to Figure 2 The spacer rod 2 is provided with a clamping member 201 for clamping the first piston valve 3. The clamping member 201 is arranged to fix the spacer rod 2 and the first piston valve 3, so as to realize the synchronous movement of the spacer rod 2 and the first piston valve 3. In a possible implementation, the clamping member 201 has two groups, and the two groups of clamping members 201 are arranged on the top and bottom of the first piston valve 3. The clamping member 201 has various forms, which are not limited in the present application. However, the distance between the two clamping members 201 should be equal to the thickness of the first piston valve 3.
[0036] Further, referring to Figure 2 The second chamber 102 is provided with a second piston valve 4 for communicating with the third chamber 103. The second piston valve 4 is fixedly arranged at the bottom of the second chamber 102, so as to realize the mutual communication between the second chamber 102 and the third chamber 103.
[0037] Further, the first chamber 101 is provided with a limiting mechanism for limiting the displacement distance of the spacer rod 2. The limiting mechanism can limit the displacement distance of the spacer rod 2. Since the spacer rod 2 is connected with the wire, the limiting mechanism is equivalent to limiting the displacement distance of the wire, so as to prevent the distance between two adjacent wires from being too close or the displacement distance of a single wire from being too far, and to prevent other accidents.
[0038] Specifically, Figure 3 A limiting mechanism structure diagram of a self-damping adjustment interphase spacing device capable of suppressing galloping provided by the embodiment of the present application is shown in Figure 3As shown, the limiting mechanism includes a limiting block 5, a second through hole 501 is formed in the middle of the limiting block 5 for the spacer rod 2 to pass through, the second through hole 501 is coaxially arranged with the first through hole 301 and is opposite to the first through hole 301, so that the spacer rod 2 passes through the second through hole 501 and the first through hole 301 at the same time, a clamping groove 502 is arranged on the inner wall of the second through hole 501, the clamping groove 502 is formed along the thickness direction of the limiting block 5, the spacer rod 2 is provided with a protruding ring 202 matched with the clamping groove 502, the clamping groove 502 is spaced apart from the outer wall of the spacer rod 2 by a distance, the protruding ring 202 is fixedly connected with the spacer rod 2 to form an integral whole, and the surface of the protruding ring 202 protrudes from the outer wall of the spacer rod 2 to be embedded in the clamping groove 502, so that the protruding ring 202 can only displace in the clamping groove 502, thereby realizing displacement limitation of the spacer rod 2 and the conductor.
[0039] Further, see Figure 2 The end portion of the spacer rod 2 extending out of the first cavity 101 is provided with a conductor connecting portion 6. In a possible implementation manner, the conductor connecting portion 6 is a connecting plate, and a connecting hole is formed in the connecting plate to pass through the conductor.
[0040] Further, see Figure 2 The spacer rod 2 is coaxially provided with an insulating disc 7 on the rod body extending out of the first cavity 101. The insulating disc 7 has a certain weight, which can help stabilize the displacement of the spacer rod 2, and the insulating disc 7 is generally made of rubber, plastic, ceramic or other composite materials, has excellent insulation performance, can effectively isolate voltage, and prevent short circuit or other electrical faults caused by current passing through the spacer rod 2 itself. At the same time, the insulating disc also has a certain mechanical strength and wear resistance, can withstand a certain mechanical load and impact, and ensures the stability and reliability of the spacer rod 2 in long-term use.
[0041] The interphase spacing device in the application increases the self-damping adjustment mechanism, can flexibly adjust the length according to the position of the conductor, has a large adjustment range, is suitable for various voltage grades and various conductor arrangement scenes, has strong applicability, can further suppress wind deviation or conductor dancing in different degrees, has stronger suppression on severe conductor dancing, does not produce redundant vibration, ensures the line operation safety to a greater extent, at the same time, the device adopts self-adaptive variable damping adjustment, does not need other monitoring means and power supply, is convenient to install and use for a long time.
[0042] In the description of the present application, it should be noted that the terms "upper", "lower", and the like are used for indicating the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. Unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" should be interpreted broadly, for example, can be fixed connection, can also be detachable connection, or integral connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0043] It should be noted that in the present application, relational terms such as "first" and "second" and the like are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or device. Without more limitations, the element defined by the statement "including a" does not exclude the presence of other identical elements in the process, method, article or device including the element.
[0044] The above is only a specific embodiment of the present application, which enables those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features applied herein.
Claims
1. A self-damping tuning interphase spacing device that can suppress flutter, characterized by, The utility model relates to a kind of high-voltage transmission line spacer, including: Adjusting assembly, the adjusting assembly includes two longitudinal arrangement damping cavities (1), the damping cavities (1) include first chamber (101), second chamber (102) below the first chamber (101) and with the first chamber (101) communication, and third chamber (103) is located the periphery of the first chamber (101) and the second chamber (102) and with the second chamber (102) communication, damping medium is equipped in the first chamber (101) and second chamber (102), and the second chamber (102) of two described damping cavities (1) is close to each other; Mobile assembly, the mobile assembly includes interval stick (2) that can be axially displaced along the damping cavity (1), interval stick (2) one end passes through the first chamber (101) and enters the second chamber (102) inside, the other end extends out of the first chamber (101) to be used for connecting the wire of high-voltage transmission line.
2. A self-damping tuning spacer device that suppresses flutter as in claim 1, wherein, First chamber (101) and second chamber (102) are equipped with the first piston valve (3) that can be longitudinally displaced, and the first piston valve (3) is equipped with the first through-hole (301) for the interval stick (2) to pass through.
3. A self-damping tuning spacer device that suppresses flutter as claimed in claim 2, wherein, And the periphery of interval stick (2) is equipped with the clamping member (201) for clamping the first piston valve (3).
4. A self-damping tuning spacer device that suppresses flutter as claimed in claim 2, wherein, Second chamber (102) bottom is equipped with the second piston valve (4) for communicating the third chamber (103).
5. A self-damping tuning spacer device that suppresses flutter as in claim 1, wherein, The end of the first chamber (101) away from the second chamber (102) is equipped with limiting mechanism for limiting the displacement distance of interval stick (2).
6. A self-damping tuning spacer device that suppresses flutter as claimed in claim 5, wherein, The limiting mechanism includes limiting block (5), the second through-hole (501) for the interval stick (2) to pass through is formed in the middle part of the limiting block (5).
7. A self-damping tuning spacer device that suppresses flutter as claimed in claim 6, wherein, The inner wall of the second through-hole (501) is equipped with clamping groove (502), and the periphery of the stick body of interval stick (2) is equipped with protruding ring (202) matched with the clamping groove (502).
8. A self-damping tuning spacer device that suppresses flutter as in claim 1, wherein, The height of the third chamber (103) does not exceed the sum of the height of the first chamber (101) and the second chamber (102).
9. A self-damping tuning spacer device that suppresses flutter as in claim 1, wherein, The end of interval stick (2) extending out of the first chamber (101) is equipped with wire connecting portion (6).
10. A self-damping tuning spacer device that suppresses flutter as in claim 1, wherein, The stick body of interval stick (2) extending out of the first chamber (101) is coaxially equipped with insulating disc (7).